This page presents the recorded teaching of Dr. Ida P. Rolf (1896–1979), founder of Structural Integration, in her own words. "Rolfing®" and "Rolfer®" are registered trademarks of the Dr. Ida Rolf Institute. This archive is independently maintained for educational purposes and is not affiliated with the Dr. Ida Rolf Institute.

Ida Rolf in Her Own Words · Topics

Ida Rolf on Why not other methods

Structural Integration is the only manipulative system that names gravity as its working tool. That single claim — repeated across Ida's 1971-1976 advanced classes in Big Sur, Boulder, New Jersey, and Los Angeles, and echoed by the colleagues she gathered around her — is the answer she gave whenever students or interviewers asked why the work doesn't simply borrow from osteopathy, chiropractic, acupuncture, massage, the various somatic schools blooming at Esalen, or the chemical medicine that had displaced manipulation a hundred years earlier. The answer is not that other methods fail. The answer is that other methods are aiming somewhere else. They treat symptoms, they balance shallow layers, they restore movement at a joint, they release a hang-up. Structural Integration aims at the relationship between the whole body and the gravitational field. The article assembles passages from her late-career transcripts and from her colleagues — Valerie Hunt, Peter Melchior, Peter Levine, the unnamed physician interlocutors — to show how she drew this distinction in the rooms where she was teaching it.

The question Ida kept asking her advanced students

In the Big Sur advanced class of 1973, Ida pressed her students with a question she would ask in some form in nearly every advanced class for the rest of her teaching life: what does Structural Integration contribute that no other school of healing offers? The question was rhetorical in the sense that she had a specific answer in mind, but she wanted her practitioners to be able to give that answer themselves, in their own words, to anyone who asked. She did not want them to fall back on technique vocabulary — fascia, myofascial release, postural alignment — because every manipulative school had its own version of those terms. She wanted them to name what was structurally distinctive about the work, and the distinction she insisted on was gravity. Not gravity as metaphor, not gravity as background condition, but gravity as the tool the practitioner is actually using when hands meet tissue.

"We are the only group who recognize that in order for a living body to be at ease in its spatial environment on the earth, it must deal positively with gravity or rather gravity must deal positively with it. Because what we here in Lawton are here to do, we can't change the gravitational field. This is odd, but we just have nothing that means yet. But what we can do is to change the way the parts of the body that I have already referred to, how they fit together into a whole which can transmit the gravitational field."

Speaking to her Big Sur advanced class in 1973, Ida names the single feature that separates this work from every other manipulative tradition.

This is Ida's clearest one-sentence answer to the question the article is built around — what makes this work different from everything else.1

Notice the move she makes inside that statement. She does not say the work is better than other methods, more advanced, more scientific, or even more effective. She says it is aimed at a different target. The chemical school treats the body through chemistry. The mechanical school — chiropractic, osteopathy, the various traditions of joint manipulation — treats the body through leverage and adjustment. Acupuncture treats the body through meridians and points. All of those are operating on the body itself. Structural Integration is operating on the relationship between the body and a field of force outside it. That is what she meant when she insisted, across many rooms and many years, that gravity is the therapist.

"that we are using gravity as our tool. So you see, we don't escape to a nice little humble fact sheet. We're just as over proud of ourselves as the medics, but we are using gravity"

Closing the same Big Sur talk, Ida names what she takes the practitioner's actual tool to be — and pokes fun at her own profession's lack of humility.

She frames the gravity claim as a boast, not a modesty — the work earns its distinctness by claiming a bigger tool, not a smaller one.2

Why chemistry displaced structure a hundred years ago

Ida's account of why Structural Integration had to exist in 1973 — why her version of the work had to be invented at all, rather than simply revived from an older tradition — rested on a historical claim she repeated in many classes. Manipulative healing, she said, was the older tradition. It had been practiced for thousands of years before chemistry arrived on the scene. Then, about a hundred and twenty-five years before her 1973 lecture, chemical medicine became sophisticated enough to synthesize substances that altered the body's chemistry, and the entire culture of healing tilted toward the chemical school. Structure was forgotten. What she was offering, she told her students, was not a return to the old manipulative schools but a new approach made possible by a more recent insight — that what determines a body's structural state is its relationship to the gravitational field.

"It is the basic consideration that makes all manipulative techniques something to be considered. You see, our dominant school of healing is not manipulation, as you all know. It's medicine. It works through chemistry. And the reason this is so is because the chemical school of healing came to its own about one hundred and twenty five years ago. I'm not going into this at this moment, but I will discuss it at some later date with you people. The chemical school came in and everybody was so enamored of it that it spread out in all kinds of directions. The mechanical school of healing that I'm talking about, the structural school went out at that time. It had been in for several thousand years, I don't doubt."

Earlier in the same 1973 Big Sur class, Ida sketches the historical displacement of structure by chemistry.

She names the cultural reason structural work disappeared — and frames her own work as the recovery of a question, not the revival of a technique.3

The historical claim does double work in her teaching. It explains why other manipulative methods — chiropractic, massage, osteopathy — are present in the cultural landscape but compromised by their position as alternatives within a chemistry-dominated frame. And it explains why the new doctrine of gravity-as-tool was needed: the older manipulative schools, even when they were the dominant healing form, did not have the conceptual apparatus to name what made structure work. They had techniques. They lacked the organizing principle. Her offering, as she presented it across the advanced classes, was not technical superiority but conceptual clarity about what the techniques were actually doing.

"And only now, this is coming up again, And And I am saying to you, and I don't get to how many people say this, that we have a more fundamental way, a more basic way of dealing with structure Now the reason we have this way is because we have become sufficiently sophisticated to understand that structure is determined by the relationship of the individual body to the gravitational field. This is what often has offered in addition to any other school. What's the difference between this and this? Is the answer."

From the same 1973 lecture, Ida names what the older schools were missing — not skill, but the gravity insight.

This is the bridge between the historical claim and the gravity doctrine: older manipulative work could be deep and ancient and still miss the organizing principle.4

Fascia as the organ of structure, not the target of technique

If gravity is the working tool, fascia is the medium through which the tool is applied. This was the second leg of Ida's answer to the why-not-other-methods question. Many manipulative schools touch fascia incidentally — massage, Trager, certain styles of osteopathy. Ida's position was that none of them treated fascia as the organ of structure, the tissue that actually determines the body's contour and its relationship to the gravitational field. They treated fascia as a wrapping around muscle, as a thing in the way of getting to the muscle. The reorganization Ida proposed required fascia to be conceived differently — as the structural organ, the substance that holds the body in three-dimensional space, the substance that can be made plastic by the addition of energy.

"And it is the collagen system which basically, which the two classes on different levels are going to turn your attention to in the the next six to thirty weeks. You are going to be getting more and more intimate with collagen which before you heard it well could mean you didn't know existed. But you see, it is the connective tissue which is the organ of structure. The fascia envelopes are the organ of structure, the organ that holds the body appropriately in the three-dimensional material world. Now nobody ever taught this in the medical school as far as I know. And anytime you want to get into an argument with your medical through they'll realize that this is so. It is the fascial aggregate which is the organ of structure. And the structure basically the word, where we use the word structure, we are referring to relationships in free space. Relationships in space. There's nothing metaphysical metaphysical about it. It's pure physics as it's taught in physics laboratories. Now the strange part about it is that that organ of structure is a very resilient and very elastic and very plastic medium. It can be changed by adding energy to it."

In the 1973 Big Sur class, Ida defines fascia as the organ of structure and warns her students that this is not how medicine has framed it.

She is explicit that the medical school has not taught fascia this way — and that her conception of the tissue is what allows the work to do what it does.5

Peter Melchior, a senior practitioner who taught alongside Ida in the 1970s, framed the same point in slightly different language in a 1974 healing-arts class. He was speaking after a long lecture on fascia, and he wanted his audience to understand that the substance they were being asked to think about was not exotic. It was the orange peel that held the orange together when the chemistry was scooped out. The image is plain and it stuck. It also draws the line between Structural Integration and the methods it does not borrow from: where other schools see fascia as connective tissue around muscle, this school sees fascia as the supportive form itself, and the muscle as a tenant inside it.

"factory go, but fascia is the stuff that keeps it from falling in on itself, falling in on its face, keeps you from falling on your face. It is your fascial body that supports you, relates you, and you know as with a child, you fool them sometimes by scooping out the material of the orange and leaving the skin and then putting the two heads together and you say to the kid now this is this is an orange and you see how long it takes that young ster to find out that it isn't an orange, that hits a ball of fascia. And so with with a a human being, in theory at least, you could scoop out the stuff that makes the factory go, the chemicals and so forth, and you would have left this supportive body of fascia. And it is this body which has had very little, almost no exploration in the sense that we have been giving to it. I remember sending somebody who came to me as a student and I set them the question of I set them to answer the question, what is fascia?"

In a 1974 healing-arts class, Peter offers the analogy that became one of the work's central images for the lay listener.

The orange-peel image makes the doctrine concrete — fascia is not a wrapping, it is the structural form itself.6

The body as plastic medium

Underlying the whole why-not-other-methods conversation was a claim about what kind of substance the body actually is. In a 1974 healing-arts lecture given to a mixed audience of practitioners and curious outsiders, Ida laid out the position with characteristic directness. The body is a plastic medium. She knew the claim sounded incredible, and she said so. Twenty-five years earlier, no one would have believed it. Fifty years earlier, she joked, they would have put her in a quiet southern room. But the plasticity of the body — its capacity to be reorganized through the addition of energy — was the precondition for everything else she taught. Other manipulative methods treated the body as something to be moved, adjusted, released. She treated it as something that could be remade.

"Now this is incredible, and twenty five years ago, no one would have believed this statement. Fifty years ago, they'd have put me in a nice sunny southern room. You've given me pretty good care, maybe. But the body is a plastic medium, and you're going to hear that several times before we get out of here today. Now, we are ready to define rolfing structural integration. It is a system of organizing the body so that it is substantially vertical, substantially balanced around a vertical in order to allow the body to accept support from the gravitational energy. Two characteristic qualities of the body make this unlikely situation possible. The material body of man is a plastic medium, as I just told you."

In a 1974 healing-arts class, Ida names the plasticity claim that makes structural change possible at all.

The plasticity claim is the precondition for the whole why-not-other-methods argument — only a plastic medium can be reorganized rather than merely adjusted.7

The plasticity claim had a practical consequence for how the work could be compared to other methods. If the body is fixed — if its structure is given by genetics or trauma or aging and can only be worked around — then the comparison among methods is about which one most efficiently works around the fixed structure. If the body is plastic, then the comparison is about which method most effectively reorganizes the structure itself. Ida's position was that only her work was even attempting the second kind of intervention. The others were doing the first kind, often well, but addressed a different question.

Not medical, not therapeutic — educational

The next move in Ida's answer was to refuse the medical frame altogether. When a practitioner or interviewer asked her how the work compared with medical treatment, she did not argue that it was a better medicine. She said it was not medicine at all. Medical improvements showed up — people lost their indigestion, their constipation, their chronic pain — but those were side effects, not goals. The goal was educational. The work was teaching the body a different relationship with gravity. This refusal of the medical frame is what protected the work from being absorbed into chiropractic or physical therapy or osteopathic technique-comparison. It was not in that conversation. It was in a different conversation, about education and about structural form.

"Rolfing, you say, is definitely not a medical treatment. Isn't educational It's definitely not a medical treatment. There are many medical improvements that show up. But I always say to them, Well, that's your hard luck. If you've lost your indigestion or your constipation or something, that's your hard luck. We didn't set out to do it."

Interviewed in the early 1970s, Ida draws the medical-versus-educational line as plainly as she ever drew it.

She does not soften the distinction — medical improvements are 'hard luck,' beside the point of what the work sets out to do.8

The refusal had practical consequences. It meant the work could not be compared to medical treatments on medical terms — outcome measures, symptom reduction, controlled trials of pain relief. It also meant the work could not be defended on medical terms. What Ida offered in place of that comparison was a different test: does the body conform more closely to the structural template for a person of that age and sex? Does it relate more efficiently to the gravitational field? Those were the questions the work answered. The questions other methods answered — does the joint move better, does the symptom abate, does the patient report feeling better — were either incidental or beside the point.

"And we'll we can put all of this together. Of course. Wait a minute. Wait a haven't asked you yet. Doctor Rolfe, can you explain briefly what is the goal of Rolfe? Well, in the broader sense, of course, what we're trying to do is to give an individual the better, the best possible use of his body and therefore, incidentally, of his mind. But, of course, the answer to that is as we see it, that we must bring a man or a woman, a human toward the vertical. It is only when he is related to that vertical stance that I described before that he is able to have the best use of his physical body and its appurtenances, a mental body and an emotional body, if one wants to use those metaphors. And this, of course, is what we have in mind to produce. In other words, what we are saying is, what we are claiming is that we can bring any man much nearer to the vertical. And that is where the head is when he to the vertical, he looks at us with amazement and he says, I feel so much better. I feel so much lighter. I move so much better. I do so much more work. What have you done to me? And all we can say is we haven't done a thing except to prepare your body so that the field of energy of the earth, the gravitational field, is able to support, work through your body and support it, instead of tearing it down."

In an early-1970s interview preserved on the Psychology Today tape, Ida states the affirmative goal of the work in her own words.

She gives the affirmative side of the medical refusal: the goal is verticality and the body's optimal use, not the treatment of any condition.9

The educational frame also explained why Ida treated the work as something that could not be reduced to a procedure manual. Education in this sense was not the transmission of technique. It was the reorganization of how the body inhabited its environment. A practitioner of a medical or paramedical method could be given a textbook and a clinical setting and trained to apply procedures. A practitioner of Structural Integration had to learn to see — to read a body's relationship to gravity and respond to what was in front of them. That reading skill was the educational center of the practice, and it was the skill that could not be borrowed from any other method because no other method was looking for the same thing.

Why not acupuncture, why not the shallow systems

Among the methods Ida considered and explicitly chose not to incorporate, acupuncture had a particular place in her thinking. She had looked at it in Paris in the 1930s or 1940s, decades before most American practitioners had heard of it. Her position, as her students reported it, was that acupuncture worked at a structural level — but at a shallow one. Where Structural Integration aimed to reorganize the deeper fascial layers and the body's relationship to gravity, acupuncture operated on the more superficial energetic field. She did not dismiss it. She simply located it elsewhere on the spectrum of structural depth.

"Ida says that and she studied and looked at acupuncture twenty or thirty years ago in Paris, that she believes that acupuncture probably has to do with top two layers of balance, maybe three. And that there are at least five or more layers of balance and that we go five, six, seven or four, five, six, seven and therefore influence those layers from the top as well. And that's why we're in structural integration and not in more temporary balance and at least that's active. I just thought it has been transmitted to me and I'd probably amplify or put something on it. So don't quote her as saying that. But they're in the same family at any rate as far as she believes they are. No help. Like there's an in between force between my body and your hand and that it is moving."

Demonstrating in a 1974 Open Universe class, Peter relays Ida's position on acupuncture to an audience that has just confused 'active pressure' with 'acupressure.'

This is a rare moment in the transcripts where Ida's specific assessment of acupuncture's depth is named — and located on a map with Structural Integration.10

The same logic — different depth, different target — applied to most of the bodywork methods proliferating around Esalen in the 1960s and 1970s. Ida acknowledged that many of them were doing real work. She just did not consider them to be doing the same work. Where they targeted release, relaxation, emotional discharge, or symptom relief, her practice targeted the body's static and dynamic balance about a vertical line. Where they treated the body as a system of tensions to be released, she treated it as a structure to be reorganized. The refusal to borrow from these methods was not territorial. It was the consequence of having a different goal.

"There's some pain involved. But I'm sure there are other ways. But most other ways are longer in time. That's the big factor. And perhaps, you know, more than that. I have a question relating to this. In your follow-up, people people who have this role in experience, assuming that they have learned to get into this particular situation you find in it, how Which is an assumption, though, that it's learned. I'm not sure it's all learned. So how have you found that they have learned to live differently so that the same condition does not be done as time goes on again?"

Asked in 1974 about the efficiency of movement and whether the work hurts, Peter places the practice on the map of alternatives.

His answer — there are other ways, but they take longer — is the most characteristic positioning of the work against competitor methods.11

Energy as the integrating concept

If gravity is the tool and fascia is the medium and education is the frame, energy is the integrating concept that ties the three together. In the 1974 healing-arts class, a physicist working with Ida — speaking in the public tape labeled RolfB3 — laid out the case that the changes Structural Integration produced could be understood through the laws of thermodynamics. The body could be modeled as an ensemble of energy-generating organs, the connections between them as viscous or elastic, and the changes produced by the work as shifts toward more rhythmic and efficient energy flow. This was not a borrowing from other methods. It was the construction of an explanatory frame in physics terms that no other manipulative school had attempted.

"The problem is compounded when one realizes that all of the individual energy sources are interrelated through myofascial investments. If we examine a simple act such as walking in the light of this model, it is apparent that for maximal efficiency these various energy sources must operate in precise, synchronous, often reciprocal patterns. If the interconnecting networks are overly viscous, then no one joint can be moved without dissipating energy throughout the entire system. If by some process the viscous elements could be changed into more elastic ones, what would the model predict? Clearly, an increased capacity for energy flow between joints is to be expected. Know that this itself will affect an overall change toward more rhythmic efficient energy flow is not true. If the individual elements are still unbalanced with respect to each other, then the increased capacity for energy transfer may be of little use or may even give the appearance of less synchronicity. This is so because all of the modules have their own intrinsic frequencies of oscillation. And if they are in wrong phase relationships with each other, their energies may tend to collide or interfere with one another. What then is the resolution of this problem? The various energy sources must then be modified so as to bring the system as a whole as near to a resonance condition as possible."

From the RolfB3 public tape, a physicist working with Ida lays out the energy-flow model of what the work changes.

This is the most explicit attempt in the public tapes to give a physics-grounded account of why the work cannot be reduced to other manipulative methods.12

The energy frame also let Ida's circle answer a particular criticism — that Structural Integration was just another deep-tissue massage with extra rhetoric. The answer was that the work was not adding pressure to release stuck tissue. It was adding energy to a plastic medium to change the medium's organization. When pressure was applied to fascia, the molecules of the tissue could reorganize. That reorganization, propagated through the connecting networks, was what produced the structural change. Other methods touched the same tissue without thinking about it as a plastic medium receiving energy. They might soften it, mobilize it, release it — but they would not reorganize it relative to gravity.

"It's pure physics as it's taught in physics laboratories. Now the strange part about it is that that organ of structure is a very resilient and very elastic and very plastic medium. It can be changed by adding energy to it. In structural integration, one of the ways we add energy is by pressure so that the practitioner gives deliberately contributes energy to the person on whom he is working, to not energy in the sense that you let a position throw it around, but energy such as they talk about in the physics laboratory. When you press on a given point, you literally are adding energy to that which is under that point. And in structural integration, by way of an unbelievable accident of how you can change fashion structure, you can change human beings. You can change their structure and in changing their structure you are able to change their function. All of you have seen that structure determines function to a very great degree, to a degree which we can utilize."

In the same 1973 Big Sur class, Ida lays out the physics of pressure as energy addition to a plastic fascial medium.

She names the operative mechanism — pressure as energy addition — that distinguishes the work from softer manipulative traditions.13

Valerie Hunt and the question of measurement

By the early 1970s Ida had drawn into her circle Dr. Valerie Hunt, a UCLA-based researcher in neuromuscular kinesiology who had begun to measure the changes produced by the work. Hunt's contribution to the why-not-other-methods question was particular: she had studied the methods Structural Integration was being compared with, in some cases as a teacher of those methods at the university level, and she was now claiming that what she was observing in bodies after Structural Integration could not be produced by exercise, by mechanical training, or by self-administered techniques. The measurements she was developing were not designed to prove the work better than competitor methods. They were designed to identify what the work was specifically doing that nothing else did.

"There's a lot of research on this to show that the frequency actually changes. I think that Rolfing brings a downward shift. There is another level of control that we call the midbrain, and this area also can turn on muscles. We can operate on it. It is one of our very basic areas for some of our primitive movement, and it primarily innervates the great large joints of the body and those which are proximal, such as the shoulders and the hips and the trunk one of the areas that Rolfing works a great deal upon. This has a tendency to produce a very rhythmic quality of movement. And then there, of course, is that cortex that louses us up in so many ways. It can do those fine things with the hand and the beautiful nuances in the face, but it is totally inefficient, inefficient. It louses up, its pattern is not well established. Two muscles counteract each other at the same time, And my feeling is that this smoother energy release that comes after rolfing is based upon a downward shift in the control in the primary control. This doesn't mean you can't be cortical but in the primary control of muscle. Another finding is that after structural integration there was more sequential contraction of muscles and not so much co contraction. What do I mean by sequential and co? If you're doing very, very fine work, such as writing for long periods of time or work with your eyes, work with your hands, it requires co contraction. You know how fatigued you get."

In a 1974 healing-arts class, Hunt describes the downward shift in motor control she observed after Structural Integration.

Hunt names a specific physiological signature of the work — a shift in primary motor control — that she had not observed from training or exercise.14

Hunt went further. In a separate session of the 1974 healing-arts series, she made what she herself called a claim she could not yet back up — that the work might affect mitosis, the rate of cell division, the body's rejuvenation. The claim was deliberately large. The point of making it was not to insist on its truth but to mark the territory in which Hunt thought the work was operating. Other manipulative methods, in her view, were operating on the joint, on the muscle, on the symptom. This work was operating on the body's most basic processes of organization and renewal. The frame again was that the practice was not better than other methods — it was aimed at a deeper level of the body's life.

"Then if Roelfing upstates the static thought forms which allows thought as well as body plasticity to take place, as well as structural realignment, there will also be realignment in alteration in not only the conform the the confirmation of the body but in its repair, in its mitosis, in its continual evolution. We know that our bodies change approximately every seven years but have we ever thought that our body changed on every breath? I'm talking about belief systems now. You see, we've held some and we haven't gone any farther. Have we ever thought that atoms and molecules are constantly replacing themselves and being altered? That hormones are in a constant state of emotion and alteration? That electrodynamic and electromagnetic energy changes are occurring constantly which are affecting our body. And yet we try to conceive of the body as static and educated in the same way. And it is not. Our physical senses really tell us very little about our bodies. They tell us that which is on the surface and the outside and that's about all they tell us. And actually we have the capacity we don't have it now, we weren't educated that way. We have the capacity and we have other levels of consciousness to know and experience molecular action inside the body and to know all about it."

In a 1974 Open Universe class, Hunt argues that the work reaches what track and field and other physical education cannot.

She names the specific limit of other physical-training methods — they do not alter the static thought forms and structural patterns that this work disrupts.15

What the practitioner is trained to be

Part of what kept Structural Integration from absorbing techniques from other methods was the kind of practitioner Ida insisted on training. She did not want technicians. She did not want people who could memorize procedures and apply them. She wanted people who could read a body, see its relationship to gravity, and construct an intervention from observation rather than from recipe. The training reflected this. People without a biology background were given nearly a year of reading before they touched anyone. People with medical backgrounds were pressed into more specialized work. And in both cases the test was the same: when given a question about anatomy or physiology, did the trainee copy the textbook, or did the trainee construct an answer of their own?

"Nobody can just run out and -It's decide to be a not simple. -What is the training that a rolfer receives? -Well, the first thing we if we take in people who have no background in physiology or anatomy or the medical biological sciences, the first thing we do is give them almost a year of reading. -In physiology and -In biology all and kinds of things that indicate that have to do with the biological sciences. If, on the other hand, they have had pre medical training or medical training and so forth and so forth, they've had a lot of this and they go on into something more highly specialized. And then at the end of that time they are supposed to write us a report answering certain questions which we give them, the point of these questions being to find out whether that individual in answering that question goes to the textbook and copies the textbook, or whether he takes the material and constructs an idea independently. Now when you say we, whom are you speaking of? Mostly Ida Pirov. So you are still the individual who certifies and directs the training."

In the same early-1970s interview, Ida describes how her trainees were selected and tested.

The training protocol enforces the difference from other methods: practitioners are made to think structurally, not to apply technique.16

This selection criterion had a consequence that ran through every advanced class. The practitioner was expected to see what was in front of them. They were not supposed to apply a fixed sequence regardless of the body. They were not supposed to import a technique they had picked up elsewhere because it had worked once for someone. They were supposed to look at the body, locate where the gravity field was not flowing through it, and address that location with their hands. Other methods could be applied without that observational discipline. This one could not. The reason it could not borrow from other methods was that the borrowing would corrupt the work's primary requirement — that the practitioner read this body, in this room, today, against the template of vertical organization.

"The body talks about it. That's all I can say. The body talks about it and those people who are in the audience, and I imagine there are a good many of them, a number of them, who have studied in my classes, know what I mean when I say the body talks about it. And if you will start with a program, start with your first hour, which I teach you, lo and behold, by the time they come in in the second hour, every one of those 10 people will show you the same mal symptom. Mhmm. Will show you that their legs are not under them. Will show you that their feet aren't walking properly. The body screams at you. So to stop it screaming, you get down there and you try to do something with it. And if you stop it screaming, then it begins to scream somewhere else and you do that in the third o. It's less than You just chase the scream until it has no place to stay."

In a 1974 structure lecture, Ida describes how the sequence of the ten hours emerged from watching bodies, not from technique borrowed from elsewhere.

She names the actual source of the recipe: not technique acquisition but sustained observation of how bodies respond.17

Holism without borrowing

By the mid-1970s Ida's circle had begun to articulate the work as not merely a manipulative practice but as a form of systems thinking applied to the body. The framework was synthesis, not analysis. Other methods, in Ida's view, were analytic — they broke the body into joints, into muscles, into symptoms, and addressed each part in isolation. Her work was synthetic — it treated the body as a set of interrelated systems whose integration was the actual target of the intervention. This framing protected the work from being absorbed into the technique-comparison conversation. Synthesis cannot borrow techniques without ceasing to be synthesis.

"The number of people on the face of the earth today who have learned to think with a greater emphasis on synthesis as a whole has increased enormously. And this widespread emphasis that has been placed on synthesis is thanks to systems analysis. Now there are a lot of you here that know about systems analysis, you know more than I do, and there are a lot of you here to whom systems analysis is a strange term, But systems analysis has made so many people aware of synthesis, of integration in life, a synthesis of systems and not of the addition of parts. Now this in Rolfeing, an appreciation of the body. In in Rolfeing, you have to see this as an appreciation of the body as a set of interrelated systems, of interrelated systems rather than an aggregate, a summation of individual pieces, call it myofascial units if you will, is what is necessary to get a body together. This synthesis of systems, not individual pieces. This is the job and the understanding that's necessary for hours eight, nine, and 10 and the more advanced hours."

In a 1971-72 IPR lecture, Ida names synthesis rather than analysis as the work's distinguishing form of thought.

She locates the difference from other methods not at the level of technique but at the level of how the body is conceptualized.18

The synthesis frame ran through Ida's late teaching with growing emphasis. By 1976, in her New Jersey advanced class, she was framing the work as the voluntary construction of a more whole person — a goal she traced explicitly to Norbert Wiener, the cyberneticist who had written about the human use of human beings. The frame located Structural Integration in a different intellectual lineage from other manipulative methods. It was not a descendant of osteopathy or chiropractic. It was a cousin of systems theory, cybernetics, and the early energetic-medicine research she was supporting through Valerie Hunt and Lewis Schultz at UCLA. That lineage was what made it impossible to borrow techniques from the manipulative cousins — they were doing analytic work, and her practice was, in its self-understanding, doing synthetic work.

"Now it is not merely the knowledge of anatomy or anatomical facts, not even facial anatomy and its facts. It is the voluntary creation of a man nearer to the goal signified by Norbert Weiner, and most of you have heard me say this before, a more human use of human beings. This is our goal, to create that kind of a man."

In a 1971-72 lecture preserved on the IPR tapes, Ida names the goal of the work in Wiener's terms.

She locates the work's purpose in a cybernetic lineage, not a medical or manipulative one — a positioning that explains why other methods are not assimilable.19

What other methods get right, and what they miss

Ida was careful, in her late classes, not to dismiss the methods her work did not borrow from. She knew that practitioners of those methods produced real change. Her position was more precise. Other manipulative systems, she said, were operating without awareness of their own operative mechanism. They produced balance, but they did not know they were producing balance. They worked with tissue that could be reached, but they did not know why it could be reached. The reason this work was specifically able to use gravity was that it was aware of what fascia was, what energy was, and what the gravitational field was. The other methods worked despite their conceptual gaps. This one worked because it had closed them.

"a nerve trunk and just pull it hither and yon and expect to get service up. But you can do it with myofascial tissue. Therefore, your myofascial tissue becomes something that is infinitely valuable to you because you can reach it. You can't just get ahold of a thyroid gland, for instance, and drag it around for the young and expect to get the service out. But you can get ahold of a lot of myofascial tissue in the neck which controls the nervous innervation of the thyroid and drag it around. This is the basis of all manipulative systems, though not all manipulative systems are aware of what is their strength and what is their weakness. And all manipulative systems, to the extent that they are therapeutic, are depending on the establishment of balance. They are not always aware of the fact that this is what they're going after. They think they're going after movement in some way, but they can't get movement until they get power. They get appropriately. And what I am trying to get you to hear this morning is an appreciation of the complicated as well as the simple world that you live in, and an appreciation of what you can get a hold of in that complicated world so that you now have the end of a string you can pull in on."

In her 1976 New Jersey advanced class, Ida explains why myofascial tissue is the practitioner's leverage point.

She names the operative reason this work can reach what other manipulative traditions cannot: fascia is the tissue you can actually move.20

The point bears returning to one more time, because it is the most easily misunderstood feature of Ida's position. She was not saying other methods were wrong. She was saying they were partial. The chiropractor producing a release through a high-velocity adjustment was producing real change. The acupuncturist producing a balance at the energetic level was producing real change. The masseur producing relaxation through soft-tissue work was producing real change. But none of them, in her view, were addressing the body as a whole structure in a gravitational field. The work that did that — that named gravity as the tool, fascia as the medium, education as the frame, and synthesis as the form of thought — was the work she was teaching. The refusal to borrow was not parochialism. It was the consequence of having a target the other methods were not aiming at.

"And so I ask you that you look at this the next time you are inclined to complain because it is being suggested that you take further training in Rolfing and actually recognize the fact that that which worked five years ago, six years ago, ten years ago, It still works, but it doesn't work well enough, it doesn't work deeply enough, it doesn't get where we should be going in order to show what Rolfing really can do. Rolfing in the sense of this deep changing of the patterns of the fundamental structure of the body to conform with gravity. I have written, as I think probably all of you know, gravity is the therapist, and this is true and I make no claim to be a therapist, but I do make a claim that says that Rothschild changes the basic web of the body so that that therapist's gravity can really get in there. And I think and trust that all of you are willing to subscribe to that claim and to spread it."

In a 1971-72 IPR lecture, Ida tells her practitioners why the work must keep changing and what its claim to relevance rests on.

She names the actual contribution — gravity as therapist — and rejects the role of therapist for herself.21

Coda: the boast that is the doctrine

In closing her Big Sur lectures Ida returned again and again to the claim that her work was using gravity, and to the wry observation that this was both a boast and a confession. The boast was that the practitioner was wielding the largest available environmental force as a tool. The confession was that the practitioner could not, in any final sense, take credit for what happened — the practitioner's job was only to prepare the body so that gravity could do its work. Other methods kept credit for the work in the practitioner's hands. Structural Integration handed it to the gravitational field. That was the doctrine she insisted on, and it was the doctrine that explained, more clearly than any technical comparison, why the work did not need to borrow from anywhere else.

"And in its energy, which is the energy of the earth, in its transmitting of that, it enhances its own energy field. You can change the body by virtue of the fact that its segments are segments of a whole and then the gravity can flow through. Now this is the basic concept of Rolfe. And tomorrow when I get you all together on the griddle, I'm going to ask you for this answer over and over again in many, many different forms. What does Rolfing contribute to the ideas of the world at the moment that no other schools of? And the answer is that we are using gravity as our tool. So you see, we don't escape to a nice little humble fact sheet."

From the same 1973 Big Sur talk, Ida closes the gravity argument by naming what the practitioner can and cannot do.

This passage states the practitioner's actual leverage — body segments can be rearranged so that gravity flows through — with characteristic directness.22

See also: See also: Ida's 1974 lecture introducing the practice and its origins, in which she places Structural Integration in relation to the new and old medicine and names the cultural ideas — environment and effect — that distinguish it from earlier frameworks. STRUC1 ▸

See also: See also: from the Open Universe class, Valerie Hunt's discussion of energy fields, acupuncture points, and the role of connective tissue as the interface between the body and the cosmos — an extension of the why-not-other-methods conversation into the speculative territory Hunt was claiming for the work. UNI_043 ▸UNI_073 ▸

See also: See also: a 1974 Open Universe class in which an interviewer asks how Structural Integration relates to magical and consciousness-based healing systems, with the practitioner declining to assimilate the work to those traditions while acknowledging their independent operation. UNI_014 ▸

See also: See also: an early-1970s interview preserved on the Psychology Today tape series, in which Ida discusses the plasticity of the body and how manipulation of tissue relates to the vertical goal that distinguishes the work from other postural systems. PSYTOD2 ▸

See also: See also: a 1974 healing-arts lecture in which Ida defines Structural Integration as a system of organizing the body around a vertical so that gravity can act supportively — including the auras and energy-field observations that distinguished the practice from other postural disciplines. CFHA_01 ▸

See also: See also: a 1971-72 lecture in which Ida and a colleague discuss the contrast between Chinese traditional medicine, which treats the whole body, and Western symptom-focused medicine — and the place of Structural Integration in that distinction. IPRVital2 ▸

Sources & Audio

Each source row expands to show how the chapter relates to the topic.

1 Gravity as Rolfing's Unique Tool 1973 · Big Sur Advanced Class 1973at 22:11

In the 1973 Big Sur advanced class, Ida tells her students that the structural school of healing went underground around 1900 when chemical medicine took over, and that what has come back is not the old structural school but something more fundamental. She names the difference plainly: practitioners of Structural Integration are the only group who recognize that a living body, to be at ease in its environment, must deal positively with gravity. Other schools work on the body. This school works on the body's relationship to the gravitational field. She is careful to note that the practitioner cannot change gravity itself; only the body's segments can be rearranged so that gravity can flow through them. The chapter matters to this article because it is Ida's clearest available statement of the central distinction — gravity as the working tool, not as background.

2 Why Wasn't This Known Earlier 1973 · Big Sur Advanced Class 1973at 3:05

In the closing moments of the same 1973 Big Sur lecture, Ida tells her advanced students that the answer to what makes Structural Integration distinct is that gravity is the practitioner's tool. She delivers this with a wink — she says practitioners are not going to escape into a humble little disclaimer about their work, that they are just as overproud of themselves as the medical doctors, but that what they are proud of is using gravity. The matter-of-fact tone is the doctrine: the gravity claim is large, the practitioner makes no apology for its largeness, and that largeness is exactly what distinguishes the work. The chapter matters because it shows Ida treating the gravity claim not as careful technical positioning but as the work's central source of pride and difference.

3 Energy, Pressure, and Stacking Blocks 1973 · Big Sur Advanced Class 1973at 18:21

In the 1973 Big Sur advanced class, Ida tells her students that adding energy to fascia through pressure is what allows structural change, and that this is the foundational reason all manipulative techniques are worth considering. But, she says, the dominant healing school of the present day is not manipulation but chemical medicine, which came into its own about a hundred and twenty-five years earlier. The chemical school spread out in all directions, while the older mechanical school — which she says had been in practice for thousands of years — went out of favor. She is not nostalgic for the old manipulative schools. She is naming a structural displacement that left a question unanswered. The chapter matters because it sets up Ida's account of why a new method was needed at all — and what makes hers different from the older traditions chemistry replaced.

4 Chemical vs Mechanical Schools of Healing 1973 · Big Sur Advanced Class 1973at 20:35

Ida tells her Big Sur students in 1973 that when chemistry became sophisticated enough to synthesize substances that operated in the body, the culture forgot about structure. Manipulative work survived as a minor tradition but lost its conceptual center. Only in the present, she says, is the structural question coming back — and coming back with a more fundamental basis than it had before. She tells the room she does not know how many practitioners are willing to say this out loud, but the new basis is the relationship between the body and the gravitational field. The chapter matters because it isolates what the older manipulative schools could not name: that the operative variable is not the body alone but the body in gravity.

5 Collagen and Connective Tissue 1973 · Big Sur Advanced Class 1973at 12:13

In the 1973 Big Sur advanced class, Ida tells her practitioners that the connective tissue is the organ of structure — the tissue that holds the body in the three-dimensional material world. She acknowledges that medical schools have not taught fascia this way; the fascial system has been treated as a wrapping rather than as the operative structural tissue. Structure, she insists, is a physical relationship in free space, not a metaphysical concept. The class is being asked to spend the next six to thirty weeks getting intimate with collagen, the connective-tissue protein, because collagen is what makes structural change possible at all. The chapter matters because it names the second pillar of Ida's distinction from other methods: not just gravity as the tool, but fascia as the organ through which the tool operates.

6 Collagen, Colloids and Fascia 1974 · Healing Arts — Rolf Adv 1974at 0:00

In a 1974 healing-arts lecture, Peter Melchior tells the audience that fascia is the stuff that keeps the body from falling in on itself. He uses an image meant to land with anyone, expert or not: if you scoop the chemistry and meat out of an orange and put the empty peel back together, you have a ball of fascia, and that ball still holds the shape of an orange. The human body, he says, is the same — chemistry inside an organ of fascia. He notes that one of his colleagues spent two days in a medical library trying to answer the question of what fascia is and could not find the answer, because the territory is unmapped. The chapter matters because it shows how Ida's circle made the central structural claim — fascia is the organ of structure — communicable to anyone who would listen, including those skeptical of the work.

7 Defining Rolfing Structural Integration 1974 · Healing Arts — Rolf Adv 1974at 40:29

In the 1974 healing-arts class, Ida tells her audience that no school of body mechanics besides her own teaches how to achieve the vertical alignment that every school agrees is the goal. The reason it can be achieved at all, she says, is that the body is a plastic medium — a claim she knows sounds incredible, and one that fifty years earlier would have gotten her institutionalized. Structural Integration, she then defines, is a system of organizing the body so that it is substantially balanced around a vertical line, in order to allow the body to accept support from the gravitational field. Two qualities of the body make this possible: its plasticity, and the fact that its material substance can be reorganized by the addition of energy. The chapter matters because it names the substrate claim that distinguishes the work from methods that treat the body as a fixed mechanical system.

8 Medical Boundaries and Body Connections 1971-72 · Mystery Tapes — CD2at 44:03

In an interview from the early 1970s, Ida is asked whether the work is a medical treatment. She refuses the framing outright. She acknowledges that many medical improvements show up — pain leaves, digestion improves, chronic complaints resolve — but she says those are not the work's goals. She tells interviewers that if a person has lost their indigestion or constipation as a result, that is their hard luck; the practitioner did not set out to do it. The work's actual purpose is to make the body conform to the proper structural template for that age and sex — a template defined by relationship to gravity, not by absence of symptoms. The chapter matters because it shows Ida actively pushing the work out of the medical conversation and into a different one — about education, about structure, about template.

9 Finding a Rolfer and Training 1971-72 · Mystery Tapes — CD2at 0:07

In an early-1970s interview preserved on the Psychology Today tape, Ida is asked plainly what the goal of the work is. She answers that in the broadest sense the practitioner is trying to give the individual the best possible use of his body, and therefore of his mind. But the specific goal is to bring the human toward the vertical. Only when a person is related to that vertical stance, she says, is he able to make the best use of his physical body and its appurtenances — and of whatever mental and emotional bodies one wants to invoke. When this happens, the person looks at the practitioner with amazement and says he feels lighter, moves better, works more. The practitioner has done nothing, Ida says, except prepare the body so that the gravitational field can support it rather than tear it down. The chapter matters because it shows Ida's affirmative replacement for the medical frame, stated as plainly as she ever stated it: the goal is the vertical relationship, not the absence of disease.

10 Acupressure and Layers of Balance 1974 · Open Universe Classat 15:48

In a 1974 Open Universe class, an audience member asks Peter Melchior whether he is using acupressure. He corrects them — the phrase is active pressure — and uses the moment to relay what Ida had told him about acupuncture. She had studied acupuncture in Paris decades earlier. Her assessment, as Peter understood it, was that acupuncture operates on the top two or three layers of structural balance, while Structural Integration operates on at least five or six or seven. Acupuncture and Structural Integration are in the same family in that both treat the body as a structure to be balanced, but they work at different depths. Peter is careful to tell the audience not to quote Ida directly on this — it is his transmission of her position. The chapter matters because it documents how Ida positioned acupuncture: not as rival, not as resource to borrow from, but as work operating at a shallower level than her own.

11 Movement Patterns and Differentiation 1974 · Open Universe Classat 16:21

In a 1974 Open Universe class, an audience member asks Peter Melchior whether the work is painful and whether the efficiency of movement is what is being created. He says yes, efficiency of movement is one of the keys, and he acknowledges some pain is involved. He is then pressed on whether there are other ways. His answer is that there are other ways but that most of them are longer in time. The compactness of that response — that the work's distinctness is partly its temporal economy — is itself a piece of how Ida's circle positioned the work against alternatives. The chapter matters because it shows how the practitioners around Ida defended the work without disparaging other methods: not by claiming uniqueness of result, but by claiming compactness of route to the same kind of structural change.

12 Energy Flow Paper: Body as Oscillators various · RolfB3 — Public Tapeat 31:41

On the RolfB3 public tape, a physicist working with Ida models the body as an ensemble of energy-generating organs connected by networks of elastic and viscous tissue. If the connecting networks are too viscous, motion at any single joint dissipates energy through the whole system. If by some process the viscous elements become more elastic, the capacity for energy flow between joints increases. But even with greater elastic capacity, if the individual elements are not balanced with respect to each other, the increased energy flow may collide or interfere with itself. The resolution, he says, is to bring the whole system as near to a resonance condition as possible — and that is what the work does, session by session, from the superficial fascia in the early hours to deeper muscle groups in the later ones. The chapter matters because it provides the physics-grounded account of why other methods that release tension without reorganizing the whole produce shallower results.

13 Collagen and Connective Tissue 1973 · Big Sur Advanced Class 1973at 14:04

In the 1973 Big Sur advanced class, Ida tells her practitioners that the fascial organ of structure is a resilient, elastic, plastic medium and can be changed by adding energy. The practitioner deliberately contributes that energy through pressure — not energy in the everyday sense, she says, but energy in the sense used in physics laboratories. When pressure is applied to a given point, energy is being added to the tissue under that point. By that unbelievable accident of how fascial structure can be changed, the practitioner can change the body's structure, and by changing structure can change function. This is, she says, the basic reason all manipulative techniques work at all — and the basic reason her work, which makes the energy-addition mechanism explicit, can go where other manipulative traditions stop. The chapter matters because it names the mechanism that distinguishes the work from softer touch-based methods.

14 EMG Findings After Rolfing 1974 · Healing Arts — Rolf Adv 1974at 17:16

In a 1974 healing-arts presentation, Valerie Hunt tells her audience that after Structural Integration she observed a downward shift in the primary control of muscle movement. The cortex is the area that handles fine work like writing and facial expression but is inefficient as a primary mover, with muscles often counteracting each other. The midbrain area, she says, controls the large proximal joints — shoulders, hips, trunk — and tends to produce more rhythmic movement. Her finding was that after structural work, more movement was being controlled from below the cortex, producing smoother energy release and more sequential rather than co-contractile muscle action. This was not, she insisted, something that could be achieved through training or exercise. The chapter matters because it documents a specific physiological signature Hunt attributed to the work — and her claim that this signature was not produced by methods Structural Integration was being compared with.

15 Rolfing and Body Plasticity 1974 · Open Universe Classat 1:04

In a 1974 Open Universe class, Valerie Hunt tells the audience that Structural Integration brings thoughts to the surface that other physical-education methods do not reach. This, she says, is why the change produced by the work is more permanent than the change produced by track and field. She is not against track and field — it has a role — but it does not do what this work does. The work, she argues, upsets the static thought forms that hold the body in its habitual configuration, allowing both thought and body plasticity to take place along with structural realignment. Once the static forms are disrupted, she suggests, the body's continual processes of repair, cell division, and renewal may themselves be affected. The chapter matters because it documents Hunt's argument that physical-training methods, however worthwhile, cannot reach the level of the body that this work addresses.

16 Training Rolfers 1971-72 · Mystery Tapes — CD2at 45:10

In an early-1970s interview, Ida describes the training pipeline for her practitioners. People who come in without a background in physiology or anatomy or biological sciences are given nearly a year of reading before they begin practical training. People who already have medical or premedical training are moved into more specialized work. At the end of the reading period, trainees are asked to write a report answering specific questions. The point of those questions, she says, is to find out whether the individual goes to the textbook and copies it, or whether they take the material and construct an idea independently. The independent construction is what she is looking for. The chapter matters because it shows that the difference between Structural Integration and other methods was enforced at the level of who became a practitioner — observers and synthesizers, not technicians.

17 Origin Story: The Music Teacher 1974 · Structure Lectures — Rolf Adv 1974at 1:21

In a 1974 structure lecture, an interviewer presses Ida on how she arrived at the sequence of ten sessions. Her answer is plain: the body talks about it. She tells the audience that the body talks about the next step, that anyone who has studied in her classes knows what she means by this. If you begin with the first hour as she teaches it, every one of the next ten people walking in for their second hour will show the same pattern — legs not under them, feet not walking properly. The body screams at you. So you address what is screaming, and when that stops, something else begins to scream, and you address that in the third hour. You chase the scream, she says, until it has nowhere left to go. The chapter matters because it shows that the recipe was not assembled from techniques borrowed from other methods — it emerged from sustained observation of how bodies responded to structural intervention.

18 Evolution from Art to Science 1971-72 · Mystery Tapes — CD2at 22:48

In an early-1970s IPR lecture, Ida tells her audience that analysis is a necessary preliminary to synthesis, but that synthetic integration — the recognition of the body as a set of interrelated systems rather than as an aggregate of parts — is the higher form of thought and the form her work requires. She tells the room that in the previous twenty-five years the intellectual culture as a whole has come a long way toward appreciating this, with systems analysis as the bridge. In Structural Integration, she says, the body must be seen as interrelated systems, not as a summation of myofascial units. This is what is needed for the eighth, ninth, and tenth hours and for the more advanced work — synthesis of systems, not aggregation of pieces. The chapter matters because it identifies the level at which Ida claimed the work was distinct: not at the level of technique but at the level of how the body is conceived and treated as a whole.

19 Synthesis of Fascial Systems 1971-72 · Mystery Tapes — CD2at 29:23

In a lecture from the early 1970s, Ida tells her audience that the practitioner's task is not merely to acquire knowledge of anatomy or even of fascial anatomy. It is the voluntary creation of a person nearer to the goal Norbert Wiener named — the more human use of human beings. Wiener was the founding figure of cybernetics, and the reference is deliberate: Ida is locating her work not in the lineage of manipulative medicine but in the lineage of systems thinking about what a human being is and could become. The goal, she says, is to create that kind of person. The chapter matters because it names the intellectual frame in which the work claims its distinctness — not as one manipulative method among others, but as the structural counterpart to a cybernetic vision of the more fully realized human.

20 Balance as Universal Law 1976 · Rolf Advanced Class 1976at 0:00

In the 1976 New Jersey advanced class, Ida tells her practitioners that the myofascial tissue is what they can actually get hold of and work with. They cannot pull on a nerve trunk and expect service. They cannot grab a thyroid gland and drag it around. But they can grasp the myofascial tissue of the neck that controls the innervation of the thyroid, and they can move it. This, she says, is the basis of all manipulative systems — though not all of them are aware of what their strength is or what their weakness is. They think they are going after movement, but they cannot get movement without establishing balance first. The chapter matters because it documents Ida's most generous reading of other manipulative methods: they work for a reason she names, and her work names that reason and uses it deliberately.

21 Evolution from Art to Science 1971-72 · Mystery Tapes — CD2at 17:02

In a 1971-72 IPR lecture, Ida tells her practitioners that the work has been changing and must keep changing — what worked five or ten years earlier still works, but not well enough, not deeply enough. The current goal, she says, is the deep changing of the body's fundamental patterns so that they conform to gravity. She has written elsewhere that gravity is the therapist, and she stands by that claim. She herself, she says, makes no claim to be a therapist. What she claims is that the work changes the basic web of the body so that gravity, the actual therapist, can do its work. The chapter matters because it gives Ida's mature formulation of what makes the practice distinct from other methods: the practitioner is not the agent of change, and the technique is not the answer. Gravity is the answer, and the practitioner's job is to prepare the body to receive it.

22 Gravity as Rolfing's Unique Tool 1973 · Big Sur Advanced Class 1973at 23:14

In the 1973 Big Sur advanced class, Ida tells her practitioners that the gravitational field is not something the practitioner can change. What the practitioner can change is the way the parts of the body fit together into a whole that can transmit the gravitational field. As that whole transmits the field, it enhances its own energy. The body can be changed because its segments are segments of a whole, and once they are arranged appropriately, gravity can flow through. This, she says, is the basic concept — and the next morning she will demand the answer from her students again, in many different forms, to make sure they have it. The chapter matters because it gives the operational core of the gravity claim: not that the practitioner uses gravity directly, but that the practitioner rearranges the body so that gravity does the rearranging work the practitioner cannot do.

Educational archive of Dr. Ida P. Rolf's recorded teaching, 1966–1976. "Rolfing®" / "Rolfer®" are trademarks of the DIRI; independently maintained by Joel Gheiler, not affiliated with the DIRI.