Introduction to Pilates-Based Rehabilitation

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Originally published by Orthopaedic Physical Therapy              Fall 2005
Clinics of North America

Introduction to Pilates-Based
Rehabilitation
Brent D. Anderson, PT, OCS and Aaron Spector, MSPT
                                                                                                          Brent D. Anderson

                                              resulting in a long recovery period
                                   fig. 1     and an inability for peak performance.
                                              Unique at the time, Pilates’ method
                                              allowed and encouraged movement                                              fig. 3
                                              early in the rehabilitation process, by
                                              providing needed assistance. It was         difficult as a result of the relationship
                                              found that reintroducing movement           of gravity on the body (fig 3). On
                                              with nondestructive forces early in the     the apparatus, springs and gravity are
                                              rehabilitation process hastened the         used to assist an injured individual to
                                              healing process. As a result, it was not    be able to complete movements suc-
                                              long before the dance community at          cessfully, aiding in a safe recovery (fig
                                              large adopted Pilates’ work.                4). Ultimately, by altering the spring
                                                 More than 70 years later, Pilates’       tension or increasing the challenge
                                              techniques began to gain popularity in      of gravity, an individual may be pro-
                                              the rehabilitation setting. In the 1990s,   gressed toward achieving functional
Origins of Pilates-based work in              many rehabilitation practitioners were      movement.
rehabilitation                                using the method in multiple fields
                                              of rehabilitation, including general
   As a child, German-born Joseph H.
                                              orthopaedic, geriatric, chronic pain,
Pilates (fig1) suffered from a multi-
                                              neurologic rehabilitation, and more.
tude of illnesses resulting in muscular
                                              Within the rehabilitation setting,
weakness. Determined to overcome
                                              most Pilates exercises are performed
his frailties, he dedicated his life to be-                                                                                fig. 4
                                              on several types of apparatus (fig 2).
coming physically stronger. He stud-
                                              The apparatus work evolved from
ied yoga, martial arts, Zen Meditation,
                                              Pilates’ original mat work, which was           Today, despite an increased number
and Greek and Roman exercises. He
worked with medical professionals, in-                                                    of health care practitioners using the
cluding physicians and his wife Clara,                                                    Pilates-based approach in rehabilita-
a nurse. His experiences led to the                                                       tion, there is still a lack of supportive
development of his unique method                                                          literature examining the phenomena
of physical and mental condition-                                                         associated with Pilates-based tech-
ing, which he brought to the United                                                       niques within the field of rehabilita-
States in 1923. In the early 1930s                                                        tion. This article discusses theoretic
and 1940s, popular dance instructors                                                      foundations of the results experienced
and choreographers, such as Martha                                                        by Pilates-based practitioners in the
Graham, George Balanchine, and                                                            field of rehabilitation. Current scien-
Jerome Robbins, embraced Pilates’                                                         tific theories in motor learning and
exercise method. As elite performers,                                                     biomechanics are examined to explain
                                                                               fig. 2     the principles of this old method of
dancers often suffered from injuries
                                                                                          movement reeducation.
Motor learning and trunk control       to facilitate controlled movement.
associated with the Pilates-based en-      Such a phenomenon is at the root
vironment                                  of Pilates-based work. It was Pilates’
    The Pilates-based environment          belief that core control was the essence
is conductive to designing task-ori-       of controlling human movement (12).
ented interventions. Within this           Richardson and Hodges (14, 16) also
environment, a faulty movement can         identified the transversus abdominus
                                                                                                                       fig. 5
be broken down into components us-         muscle as being a primary postural
ing springs and changing the bodies        control muscle. It is hypothesized that
orientation to gravity. By successfully    the transversus abdominus is activated
evaluating a patient’s needs and access-   at a subconscious and submaximal
ing the desired movement outcome,          contraction, as part of the motor
be it jumping, sitting, reaching, rotat-   plan, to provide trunk stiffness during
ing, or walking, one can easily design     dynamic movement. This approach
a similar movement but with the            to core control supports the theory
appropriate level of load to the limb      of movement advocated by Pilates-          and range of a movement often suf-
or trunk to support it while it heals.     evolved practitioners, more so than        fer. The Pilates-evolved environment
Adapting environmental constraints,        traditional methods. Pilates-evolved       allows the therapist to decrease the
such as gravity and base of support,       is a term used to differentiate practi-    proprioceptive challenge by increas-
reduces the degrees of freedom that        tioners who are continuing to define       ing the base of support and providing
must be controlled by the nervous          and expand on Pilates’ work from the       adequate assistance and feedback for
system (5). The manipulation of the        traditional Pilates practitioners.         an optimal motor learning environ-
environment can hasten the reeduca-            The goal of achieving efficient        ment. The movement sequence can
tion process. As the movements are         movement and returning to functional       then be progressed by decreasing the
successfully completed, the patient        movement and enhanced performance          assistance and amount of support,
can be progressed by decreasing the        is the foundation of Pilates-evolved       ensuring that the quality of the move-
assistance or changing the orientation     work. Pilates-evolved exercises are        ment does not suffer. A therapist could
to gravity until the desired outcome       thought to facilitate such movement        then continue the progression toward
is achieved. Commonly, trunk control       behavior by allowing the patient to be     a more functional task and familiar
is a desired outcome for functional        in a position that minimizes unwanted      orientation with gravity. Traditional
movement and requires successful           muscle activity, often responsible         motor learning theory would teach
integration of all its components to       for inefficient movement patterns          that a cognitive level of learning take
maintain a normal orientation to           and early fatigue, which can lead to       place first with internal and external
gravity.                                   injury. When a desired movement is         feedback. Once association takes place
    Research has looked at the im-         challenged by a decrease in proprio-       and the patient continues to practice,
portance of trunk control, led by          ception, individuals often overrecruit     the new movement sequence may
Richardson and Hodges in Australia         muscles in an attempt to stabilize.        become automatic. It is this automatic
(14, 16, 21). Their research focused       Although it has not been proved, it        execution of new movements that re-
on defining the activity of trunk          remains plausible that overstabiliza-      duces the risk of reinjury and increases
musculature among healthy subjects         tion or faulty stabilization inhibits      efficiency.
and subjects experiencing chronic          efficiency and often acts as a hindrance       Another important factor for attain-
low back pain during upper extrem-         to efficient movement. For example,        ing automatic movement is neurologic
ity movement. The results support          a patient may be able to demonstrate       feedback from the deep muscles of the
the importance of core stiffening of       a 90-degree straight leg passively, but    trunk, or the multifidi. The multifidi
the trunk muscles in preparation for       when asked to lay on his or her side,      muscles have six times the number of
movement of the extremities. For           with a decreased base of support, the      muscle spindles of any other muscle
the purpose of this article, the word      available range of motion on the hip       in the trunk (9-11). This great source
core is synonymous with trunk. Core        drastically decreases (fig 5). When        of kinetic feedback plays a large role in
stiffening is not thought to restrict      the base of support and balance are        trunk awareness. Richardson et al (14)
movement of the spine but instead          challenged, the degree of efficiency
showed that patients with chronic low      other, providing greater variety in the   sired movement of the extremity (fig
back pain recruited their multifidi        precision of the therapist’s modifica-    6)). Disassociation combined with
with different timing and magnitude        tion of selected movements.               stabilization provides a favorable
of contraction compared with normal                                                  environment for protecting further
subjects. The healthy subjects showed      Polestar Education                        trauma to spine lesions. The large
symmetric recruitment bilaterally of           Another example of an optimal         muscles that are often guilty of the
the multifidi muscles, whereas the         environment for motor learning is         unwanted splinting (i.e. quadratus
subjects experiencing low back pain        found in Polestar Education, a Pilates-   lumborum, gluteus maximus, and su-
showed asymmetry of the multifidi on       evolved education company focusing        perficial erector spinae) can be taught
the affected side. Another study using     on rehabilitation (1). Polestar Educa-    to lengthen eccentrically, allowing the
ultrasonography showed a discrepancy       tion has defined the process of motor     hip to absorb and distribute efficiently
at segmental levels in multifidus girth,   reeducation to the spine by breaking      potentially harmful flexion forces to
correlating to the site of the lum-        it down into three phases.                the spine.
bar lesion (14). Theoretically, if the     Phase I: Assistive movement
multifidi and other deep paraspinal                                                  Stabilization
                                              Assisting movement with the use           In the early phase, the interest is
muscles are inhibited secondary to
                                           of springs can allow for a decrease of    in recruitment of deep stabilizers (i.e.
pain and pain inhibition, one could
                                           unwanted muscle activity or guarding      transversus abdominus, internal and
hypothesize that the same process
                                           often associated with pain or weak-       external abdominal obliques, and
would inhibit the proprioceptive
                                           ness. Phase I, according to Polestar,     multifidi muscles). The stabilizers
feedback mechanism of that muscle
                                           can be broken down into three stages.     consist largely of type I fibers and are
(i.e., muscle spindle fiber). The loss
                                           These three stages can exist simultane-   thought to contract at a submaximal
of proprioceptive feedback leads to
                                           ously.                                    level, which is less than 30% to 40%
a decrease in trunk awareness and
control. Inhibition of core proprio-       Disassociation                            of a maximal voluntary contraction.
ception may be responsible for faulty                                                This submaximal contraction happens
                                              Disassociation entails isolating
compensatory patterns that can result                                                simultaneously while disassociating
                                           movement at the hip or shoulder
in destructive forces that prolong the                                               the extremities or segments above or
                                           girdle, independent of pelvis or spine
healing process. Working to overcome                                                 below the lesion. As the extremity
                                           movement. This isolation can begin
faulty compensatory movement pat-                                                    disassociates from the trunk and the
                                           by creating an environment with a
terns is a fundamental goal in the                                                   pelvis remains in neutral, the deep
                                           large base of support (i.e. in supine
Pilates-evolved method. Treatment                                                    stabilizers work efficiently to maintain
                                           and offering assistance into the de-
and intervention goals are to improve
the proprioception of the trunk and
to minimize the destructive forces as
described by Porterfield and DeRosa
(13) in their phase II of rehabilitation
biomechanical counseling. Once the
patient has shown successful move-
ment without pain, the exercise is
progressed by decreasing the assistance
and challenging the base of sup-
port. This process is consistent with
Porterfield and DeRosa’s phase III
dynamic stabilization (13). The ability
to challenge proprioception through
a movement phase in the Pilates-
evolved environment is endless. The
three variables-base of support, length
of levers, and degree of assistance-can                                                                              fig. 6
be manipulated independent of each
control (fig 7). This efficient use of    Phase II: Dynamic Stabilization             Phase III: Functional Reeducation
the deep stabilizers and the decreased        Dynamic stabilization involves             Specificity training and functional
guarding is consistent with Porterfield   challenging the newly acquired mobil-       reeducation are popular concepts
and DeRosa’s phase I of rehabilitation,   ity or stability in a more functional and   in the field of rehabilitation. The
to control pain and to encourage bio-     gravity dependent environment. This         Polestar approach divides functional
mechanical counseling.                    phase is a continuation of disassocia-      reeducation into two stages: (1) for-
                                          tion, stabilization, and mobilization is    eign environment and (2) familiar
                                          phase I. By decreasing the assistance       environment.
                                          and base of support or increasing the
                                          length of the levers, a movement or         Foreign environment
                                          exercise difficulty increases. Once the         Task Specificity is a major focus
                                          desired movement is restored, the           of attention for those researching
                                          newly acquired movement can be              motor learning. Most research shows
                               fig. 7     challenged at a level appropriate for       that neuromusculature reeducation
                                          goals and expected outcomes. Elite          has carryover only from task-specific
                                          movers often require greater chal-          movements. To teach a patient how
Mobilization                                                                          to jump off one leg, practice should
                                          lenges against gravity and resistance
    Mobilization is the restoration       than a more sedentary patient (fig          consist of jumping off of one leg. It
of mobility to affected joints and        9). Efficiency of movement is the           has been experienced clinically, how-
muscles. A therapist can contribute                                                   ever, that putting a patient back in
to the pathology if mobilization is too                                    fig. 9     familiar environments too soon can
aggressive or premature. Conversely a                                                 lead to the patient seeking the path
lesion may be traumatized further if                                                  of least resistance, returning to old
mobility is not restored. This is why                                                 habits. To continue with the example,
the use of assistance is so crucial to                                                if the patient does not tolerate jump-
restore the desired movement prop-                                                    ing against gravity, the patient can
erly. The Pilates-evolved environment                                                 be placed supine and asked to jump
allows the therapist to use appropriate                                               with gravity eliminated (fig 10). In
feedback and assistance to facilitate                                                 a foreign environment, the desired
successful movement. As the therapist                                                 movement can be replicated with less
restores mobility to a target joint and                                               proprioceptive challenges and destruc-
surrounding joints, the force can be                                                  tive forces, while providing necessary
distributed equally, minimizing de-                                                   verbal and tactile clues, facilitating the
structive forces (fig 8).                                                             motor learning process and allowing
                                                                                      the patient to perform the movement
                                          goal. By incorporating breathing and        correctly.
                                          movement principles early in phase                                           fig. 10
                                          I activities, the ability of the patient
                                          to recruit secondary stabilizers (i.e.,
                                          erector spinae, external and internal
                               fig. 8
                                          abdominal obliques, latissimus dorsi,
                                          and deep pelvis musculature) im-
                                          proves. The rectus abdominus should
                                          be trained for more ballistic move-             Familiar environment
                                          ments because it is primarily a type II         In the familiar environment stage,
                                          fiber muscle (fast twitch). The focus       the patient is returned to the specific
                                          in this phase is still control.             task in their day- to-day environment.
                                                                                      The movement task learned within the
                                                                                      foreign environment is progressed to
                                                                                      a familiar environment with a normal
orientation to gravity. The patient is     addressed motor learning principles        Pilates-evolved approach in rehabilita-
then challenged and encouraged to          and current research that helps sup-       tion. Current research associated with
build adequate endurance and ef-           port Pilates-evolved work as a viable      connective and neurologic tissue and
ficiency of movement in the familiar       mechanism of neuromuscular inter-          the muscoskeletal system is considered
environment. Tactile and verbal clues      vention for rehabilitation.                in this section. Anthropometry is also
used in the foreign environment are           Biological and Physiologic Prin-        discussed as a contributing factor to-
repeated to help associate each cor-       ciples Associated With the Pilates-        ward seeking efficient interventions.
rect movement with the desired task        Based Approach
(fig 11). The final goal is to become                                                 Connective tissue
                                              Pilates-evolved work identifies vari-
autonomous with the movement. In                                                          Connective tissues provide sup-
                                           ous biomechanical and physiologic
summary of motor learning applica-                                                    port, transmit forces, and maintain
                                           properties that can help support the
tions to trunk control, this section has                                              the integrity structurally. All connec-
                                                                                      tive tissue is made up of cells and ex-
                                                                                      tracellular matrix composed of fibers
                                                                                      and ground substance. The elasticity
                                                                                      of the connective tissue is based largely
                                                                                      on the ratio of collagen fibers to elastic
                                                                                      fibers found in the tissue (7, 19). A
                                                                                      large portion of connective tissue is
                                                                                      avascular or hypovascular. This lack
                                                                                      if vasculature would imply that nu-
                                                                                      trients are received through changes
                                                                                      in pressure gradients, osmosis, and
                                                                                      chemical and electric concentration
                                                                                      (7). The Pilates-based exercises pro-
                                                                                      vide a closed-chain environment that
                                                                                      facilitates compressive and decom-
                                                                                      pressive forces on the connective tis-
                                                                                      sues. It can be hypothesized, based on
                                                                                      animal research, that the degeneration
                                                                                      often experienced by immobilization
                                                                                      or lack of compressive and decom-
                                                                                      pressive sources can be as destructive
                                                                                      to cartilage as overuse to the cartilage
                                                                                      (6). Many connective tissue lesions,
                                                                                      such as osteoarthritis, osteoporosis,
                                                                                      degenerative disk disease, chronic sys-
                                                                                      tem arthritis, fascial pain syndromes,
                                                                                      and cartilage and ligamentous tears
                                                                                      and repairs, can benefit from closed-
                                                                                      chain movement when the load is
                                                                                      modified.
                                                                                      Nervous tissue
                                                                                         Malfunctions of the peripheral and
                                                                                      central nervous system continue to be
                                                                                      investigated as a source of orthopaedic
                                                                                      pathologies (2). The nervous system
                                                                                      can be temporarily compromised;
                                                                         fig. 11
                                                                                      become ischemic; and provoke symp-
toms of pain, paresthesia, weakness,       not the most efficacious way to teach      sequencing can be applied to a vari-
and decreased motor control (17).          a patient movement or to facilitate        ety of body types. The adaptability
Often these signs and symptoms take        postural changes. Pilates-evolved          of the clinical reformer allows the
on the appearance of a traditional or-     practitioners have experienced that        practitioner to consider variations of
thopaedic diagnosis but symptoms do        movement performance and efficiency        an individuals weight and height. A
not respond to traditional treatments,     are facilitated best by using imagery      good example is an exercise referred
such as injections, transverse tissue      and feedback mechanisms instead of         to as the hamstring arcs on the clinical
massage, ice, and muscle stretching.       eliciting maximal voluntary contrac-       reformer (fig 4). The objective of the
Practitioners often experience suc-        tions or isolated muscle contractions      movement sequence is to teach the
cess in decreasing symptoms through        for gross strength. The movement           patient to disassociate movement at
mobilization of the nervous system         sequences on various Pilates apparatus     the hip, while maintaining the pelvis
and its connective tissue. It might be     allow the practitioner to modify the       and lumbar spine quiet or neutral.
hypothesized, as described by Butler       load to facilitate efficient movement      The foot straps, as an extension of
(3), that the cases that fail the more     accurately. This approach can be sup-      the ropes, are attached to the feet.
traditional pathways (i.e., joint and      ported with other basic principles of      The springs are set so as to hold the
soft tissue mobilization, static rest,     biomechanics and muscle physiology,        legs effortlessly at approximately 45
bracing or stabilization exercises)        such as muscle-length-tension curve        degrees flexion. If the legs are long,
would do well with movement, or            and velocity training. The variation of    the ropes can be lengthened to provide
better stated, mobilization of the         strength and mechanics of the joints       the same level of assistance as can be
nervous system and its connective          and levers through an arc of motion        done for a person with much shorter
tissues. Pilates-based exercise can        can be explained by the muscle-length-     limbs. If the limb is heavy because of
serve sd s technique to mobilize the       tension curve and movement velocity.       muscle mass or fat, the springs can be
nervous system and its surrounding         For example, the greatest assistance       increased to balance out the weight
connective tissues, as described by the    can be applied at the beginning and        of the lower limbs can move with
practitioner.                              end of the arc, where the strength is      control through space without losing
                                           least, and the least assistance can be     control of the pelvis and spine. The
Skeletal muscle                            applied through the middle of the          flexibility of this environment can take
    Skeletal muscle can be influenced      arc, where the strength is greatest.       into account multiple anthropometric
greatly by Pilates-evolved exercises.      In the case of dynamic stabilization,      configurations.
In contrast to traditional modes of        the greatest resistance is applied in
muscle conditioning that seek maxi-        the middle of the arc of movement,         Conclusion
mal voluntary contractions, Pilates-       where available torque is greatest. This       In comprehending current mo-
evolved muscle conditioning focuses        is also the range that is least vulner-    tor learning theories, biomechanical
on recruitment of the most effective       able to insult. Changing the velocity      principles, neuromusculoskeletal
motor units. This form of recruitment      can also vary the muscle physiologic       physiology, and anthropometry, the
allows for an emphasis to be placed        responses, allowing custom tailoring       Pilates-evolved work can be perceived
on energy efficiency and quality of        of the movement sequence to mir-           as a viable and effective method of
performance. Physiologically, most         ror the desired functional task of the     movement reeducation. It is now
muscle recruitment during day-to-day       patient (8, 9).                            necessary to subject this method to
activities occurs in postural muscles,                                                the rigors of research to investigate
which contain predominately type I         Anthropometry                              its validity as a cost-effective and ef-
fibers. By facilitating postural muscles      Anthropometry deals with the            ficient intervention for rehabilitation,
in the right sequence, a therapist         measure of size, mass, shape, and in-      postrehabilitation, and fitness. The
can assist a patient in improving the      ternal properties of the human body        use of Pilates-evolved methods in the
efficiency of static and dynamic pos-      (4). In the Pilates-evolved environ-       various fields of rehabilitation, includ-
ture and decreasing significantly the      ment, the equipment adapts to many         ing neurologically involved, chronic
likelihood of self-induced destructive     human body variations. For example,        pain, orthopaedic, performance based,
forces. Richardson et al (15) found        the springs, ropes, and footbar of the     and pediatric rehabilitation, merits
that the traditional method of eliciting   clinical reformer can be adjusted such     investigation.
an isolated volitional contraction is      that similar properties of movement
References                           8 Nordin M, Frankel VH:                    tal stabilization. In: Thera-
  1 Anderson B, Larkam E:              Biomechanics of skeletal                 peutic Exercise for Spinal
     Polestar Education, Ap-           muscle. In: Basic Biome-                 Segmental Stabilisation in
     proach to rehabilitation in       chanics of the Muscoskel-                Low Back Pain. London,
     the Pilates Environment.          etal System. Philadelphia,               Churchill Livingstone,
     Miami, Polestar’s Rehab           Lea & Febiger, 1989                      1999
     Course manual for Con-          9 Norris CM: Spinal stabi-         16 Richardson C, Jull G,
     tinuing Education, 1977           lisation limiting factors           Toppenberg R, et al: Tech-
  2 ButlerDS: Functional               to end-range motion in              niques for active lum-
    anatomy and physiology             the lumbar spine. Physio-           bar stabilisation fo spinal
    of the nervous system. In:         therapy 81:64-72, 1995              protection: A pilot study.
    Mobilization of the Ner-                                               Australian Physiotherapy
                                    10 Norris CM: Spinal sta-
    vous System. New York,                                                 38:2, 1992
                                       bilisation active lumbar
    Churchill Livingstone,             stabilisation-concepts.          17 Sunderland S: The pa-
    1991                               Physiotherapy 81:61-64,             thology of nerve injury.
  3 ButlerDS: The clinical             1995                                In: Nerve Injuries and
    consequences of injury to                                              Their Repairs. London,
                                    11 Norris CM: Spinal sta-
    the nervous system. In:                                                Churchill Livingstone,
                                       bilisation: Stabilisation
    Mobilization of the Ner-                                               1991
                                       mechanism of the lum-
    vous System. New York,             bar spine. Physiotherapy         18 Van Wingerden BAM:
    Churchill Livingstone,             81:72-79, 1995                      Ligaments and capsule.
    1991                                                                   In: Connective Tissue in
                                    12 Pilates JH, Miller WJ:
  4 Chaffin D: Anthropology                                                Rehabilitation. Lichten-
                                       Result of contrology. In:
    in occupational biome-                                                 stein, Scipro Verlag-Val-
                                       Return to Life Through
    chanics. In: Occupational                                              duz, 1995
                                       Contrology. New York, JJ
    Biomechanics. New York,            Augustin, 1945                   19 Van Wingerden BAM:
    John Wiley, 1990                                                       Muscle. In: Connective
                                    13 Porterfield JA, DeRosa C:
  5 Horak FB: Assumptions                                                  Tissue in Rehabilitation.
                                       Treatment of lumbopelvic
    underlying motor control                                               Lichtenstein, Scipro Ver-
                                       disorders. In: Mechani-
    for neurologic rehabilita-                                             lag-Valduz, 1995
                                       cal Low Back Pain: Per-
    tion: Contemporary man-            spectives in Functional          20 Van Wingerden BAM:
    agement of motor control           Anatomy. Philadelphia,              Principles of athletic train-
    problems. Presented at II          WB Saunders, 1991                   ing. In: Connective Tissue
    Step Conference APTA,                                                  in Rehabilitation. Lich-
    Norman, OK, 1991                14 Richardson C, Jull G,
                                                                           tenstein, Scipro Verlag-
                                       Hodges P, et al: Local
  6 Jurvelin J, Kiviranta I,                                               Valduz, 1995
                                       muscle dysfunction in
    Tammi M, et al: Softening          low back pain. In: Thera-        21 Wolhfahrt D, Jull G, Rich-
    of canine articular cartilage      peutic Exercise for Spinal          ardson C: The relation-
    after immobilization of the        Segmental Stabilisation in          ship between the dynamic
    knee joint. Clin Orthrop           Low Back Pain. London,              and static function of ab-
    207:246-252, 1986                  Churchill Livingstone,              dominal muscles. Austra-
  7 Nordin M, Frankel VH:              1999                                lian Physiotherapy 39:1,
    Biomechanics of tendons                                                1993
                                    15 Richardson C, Jull G,
    and ligaments. In: Basic           Hodges P, et al: Overview       Fig. 1      Joseph H. Pilates
    Biomechanics of the Mus-           of the principles of clinical
    coskeletal System. Philadel-                                       Fig. 2      Pilates-based rehabilitation
                                       management of the deep
    phia, Lea & Febiger, 1989          muscle system for segmen-       Fig. 3      The Hundred mat exercise
demonstrates a movement          Fig. 11 Jumping in a familiar en-
         that is difficult because of             vironment with a normal
         the body’s relationship with             orientation to gravity.
         gravity.
Fig. 4   Hamstring Arcs on the Clini-
         cal Reformer demonstrates
         an assistive environment for
         hip flexion and disassociation
         at the hip joint.
Fig. 5   A, Straight leg raise test
         demonstrating 90 degrees of
         hip flexion. B, the Sidekick
         mat exercise demonstrating
         approximately 60 degrees of
         available active hip flexion.
Fig. 6   The 90/90 exercise on the
         Trapeze Table, demonstrat-
         ing disassociation of the hip
         joint in an assistive environ-
         ment with a large base of
         support.
Fig. 7   The Quadruped exercise
         on the Clinical Reformer,
         demonstrating stabilization
         of the spine and pelvis with
         disassociation at the shoulder
         joint.
Fig. 8   The Roll Down exercise on
         the Trapeze Table (A) and the
         Spring-Assisted Spine Exten-
         sion on the Combo Chair
         (B), demonstrating spine
         mobilization with spring as-
         sistance.
Fig. 9   The Lateral Box Work ex-
         ercise (A) and the Inverted
         V Series exercise (B) on the
         Clinical Reformer, demon-
         strating advanced abdominal
         work and dynamic stabiliza-
         tion.
Fig. 10 Jumping on the Clinical
        Reformer, demonstrating an
        exercise in a foreign environ-
        ment.
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