Therapeutic exercise is a hallmark of physical therapy. Among many benefits, therapeutic exercise can restore correct strength ratios between muscles, increase functional capacity, and improve coordination.

When prescribing therapeutic exercise, the physical therapist must consider the entire sequence of neuromuscular events that allows the patient to perform their daily activities and sports. This sequence can be thought of as a chain composed of three elements: proximal (closest to the spine) stability, distal (away from the spine) motion, and finally, the desired fine motor skill.

While this sequence of neuromuscular events accompanies all deliberate human motion, it is perhaps most readily illustrated by the action of throwing a dart. The motion requires a firm basis of proximal support and slight rotation around the spine, distal motion performed by muscles of the chest, shoulder, and upper and lower arm, and fine motor skill as the fingers take control of the dart’s release. The controlled, simultaneous engagement of all three elements is what enables the competitor to hit the target’s triple ring.

In Pilates-speak, the deep muscles of the trunk that provide proximal stability are called the “core,” and the ability to move one’s limbs and carry out skilled tasks while holding the trunk steady is called “dissociation.” Strength and control over these deep muscles of your trunk provide the stable base required to perform tasks such as kicking a soccer ball or swinging a golf club.

Here at Physical Therapy of Los Gatos we draw from a wide a variety of exercises to help our patients coordinate, strengthen, and engage this three-part chain. Visitors to our clinic might recognize our use of movements from yoga, Swiss ball exercises, elastic band resistance exercises — even pull ups and hands stands. They might also recognize mat-based and equipment-based Pilates exercises. As a form of exercise, Pilates expands the clinical repertoire of physical therapy with a diverse range of exercises, performed in multiple planes and positions.

Pilates for Neuromuscular Retraining
Full recovery from injury proceeds through overlapping stages. Therapy to bring about full recovery must be coordinated with these stages. Initially, a patient may need to unlearn inefficient movement patterns that allowed the injury to occur in the first place. The Pilates Reformer offers an effective exercise platform where this unlearning can occur, and old patterns of movement can be replaced by ones that properly engage the proximal to distal to fine motor skill sequence. The Reformer enforces correct exercise motion and helps the therapist and patient isolate and train the deep muscles of the trunk required for proximal stability.

On the Pilates Reformer, neuromuscular re-training exercises can be performed in kneeling, supine, prone, or side-lying positions. This allows the therapist to prescribe some unusual exercises, such as supine “jumping” and rowing while kneeling. Patients and therapists have found that neuromuscular retraining to correct injury-causing patterns of movement proceeds more rapidly in these unfamiliar exercise positions, where gravity pulls the body along different axes and the usual proprioceptive cues are absent. As training proceeds, the therapist can progress the patient to exercise postures needed for his or her sports and activities to fully restore endurance, power and agility.

Pilates for Correct and Calibrated Strengthening
At Physical Therapy of Los Gatos we design individualized treatment programs that coordinate the timing and intensity of therapeutic exercise with each patient’s condition and functional capabilities. Injured tissues such as bones and ligaments must be allowed to heal, but incremental loading (progressive resistance training to increase strength) along correct axes is required to bring about full maturation of healing tissue. If exercise is delayed or inadequate, the muscles around the injured site become weaker and atrophy, slowing down the recovery process. Pilates helps close the gap between bed rest and full recovery by providing a variety of exercises that can be performed over a wide range of functional abilities.

In the case of a basketball player recovering from knee arthroscopy, the mechanics of jumping can be practiced in a supine position on the horizontal carriage of the Pilates Reformer. In addition to providing the neuromuscular training benefits described above, the Reformer in this case allows the therapist to initiate incremental loading of the affected knee without subjecting injured tissues to the full forces of gravity. In this type of therapeutic exercise, the Reformer is unlike a traditional leg-press apparatus because the patient’s position during the Reformer exercise simulates the relative head, torso, and leg alignment of regular upright jumping. With Pilates, the physical therapist can prescribe low-intensity jumping exercise in early treatment, and increase the intensity as recovery progresses. This enables the patient to recover upright jump capability and return to competition sooner.

Pilates for Full Recoveries
To us, “full recovery” does not simply mean returning the patient to his or her previous activities in order to be injured again. We are unique in our analytical approach into the causes of each patient’s susceptibility to injury. Our definition of full recovery includes identifying and strengthening weak muscles that allowed the injury to occur in the first place, and achieving neuromuscular control consistent with injury prevention. Ideas such as “dissociation” and “core” in Pilates helps isolate and train muscles responsible for preventing injury.

The Spring 2006 West Valley College Sports Medicine Symposium was held May 5th. The symposium was organized by John Kao MD for an audience consisting of physical therapists, athletic trainers, and physicians. The purpose of the Sports Medicine Symposia series is to continue improving the standard of orthopedic medicine here in the Bay Area by providing orthopedic professionals an opportunity to share their knowledge with one another and with other medical practitioners. This year’s spring symposium focused on current challenges of treating the lower extremities.

The following local professionals gave presentations:

• John T. Kao, M.D.

• Grady L. Jeter, M.D.

• Robert S. Nishime, M.D.

• Thomas Elardo, D.P.M.

• Paul Christensen, DPT, OCS, ATC

• Rob Naber PT, OCS, ATC

• Ross Nakaji PT, OCS, ATC, CSCS

• Fabrice Rockich, DPT, OCS, CSCS

• Paul Starks, MA, ATC, PTA, CSCS

Physical Therapy of Los Gatos principal Rob Naber spoke about the evaluation and treatment of problems affecting the knee. Rob began by noting the value of recent knee research and the bearing of research findings on the practitioner’s approach to knee conditions and injuries:

“The knee is often the weakest link that defines and limits an athlete’s total competitive capacity. The knee is needed for speed, power and strength, but is also vulnerable to injury. A knee injury not only means missing practice or competition but may also lead to the loss of scholarship support and potential professional opportunities. Extensive research of the knee, and improved diagnostic, rehabilitation, and surgical methods have brought new hope to athletes and clinicians dealing with the challenges of the injured knee.”

– from Current Issues in Sports Medicine: The Knee presented by Rob Naber PT, OCS, ATC

One of the key takeaway messages from Rob’s presentation was the importance of quantifying the capability and condition of the knee while the joint is in motion. In the evaluation and treatment of anterior knee pain, for instance, measuring the concentric vs. eccentric torque capacities of the knee is critically important as a diagnostic aid and as a reliable indicator of treatment progress. In rehabilitation following surgical reconstruction of the anterior cruciate ligament, videographic analysis of lower extremity angles during landing and jumping provides data the therapist needs to design and carry out a course of treatment that brings about rapid restoration of function and corrects neuromuscular control deficiencies that would otherwise invite re-injury.

Using the links below, interested individuals can view visuals and handouts from Rob Naber’s presentation to the Spring 2006 West Valley College Sports Medicine Symposium. For more information about Physical Therapy of Los Gatos’ approach to the evaluation and treatment of knee problems, please call the clinic at (408) 358-6505.

Current Issues in Sports Medicine: The Knee (view presentation visuals)
Current Issues In Sports Medicine: The Knee (download text)

Jump Strength Training Program (download program description)

Jump Strength Training Glossary (download glossary)

You know the feeling. You’ve put in the miles, the hills, the interval training. Now it’s race day and you’re having a good one. You feel balanced, light, and fast. You press the pace one more click and leave another pack of runners behind.

Then it happens. Your foot comes down on a rock and rolls painfully inward. You hear a sickening “pop,” you go down, and the runners you just passed thunder past you. Nauseating pain overwhelms your interest in the torn skin on your hands and stays with you throughout the long limp back to town.

Here in Los Gatos we’re fortunate to have miles of unpaved recreational trails and utility roads, such as the Los Gatos Creek Trail, the Flume Trail, the Jones Trail, and the Limekiln Trail, offering a variety of terrain through our open space preserves. The race described above could well be our own late-summer annual event, the Dammit Run. If you suffer an ankle sprain while running in competition or in training, here’s what you need to know to get back on the trail and back up to speed.

A Few Definitions
A ligament is a band of fibrous tissue in a joint connecting bone to bone. Each joint has several ligaments. Ligaments are distinct from tendons, which connect muscle to bone. Ligaments support and strengthen joints and make joints stable by limiting joint motion from movements in unwanted directions.

A sprain occurs when a ligament is stretched beyond its normal limits. Sprains are classified according to degrees of severity. A Grade I sprain involves damaging a ligament but not compromising its function of restraining unwanted motion. In a Grade II sprain, the ligament is partially torn and allows some unwanted motion. In a Grade III sprain, the ligament is completely torn and cannot stop unwanted motion, and joint stability and function are lost. Grade III sprains cause diffuse swelling and bruising around the affected joint.

A sprain is more than a simple mechanical injury. Sprains affect proprioception, the neural feedback mechanism that enables us to know the angles of our joints, and the positions of our limbs and extremities, without looking. Good proprioception is what enables us to run in the dark without thinking about where to put our feet, or land a jump shot when focusing on the hoop.

First Aid for Sprains
First Aid for sprains can be remembered by the acronym  “RICE,” (Rest, Ice, Compression, Elevation). For Grade I sprains, First Aid treatment alone is often adequate. Grade II and III sprains require rapid administration of First Aid, plus medical evaluation and treatment including some external support, such as a McDavid ankle brace , to protect the ligament while healing. Complete recovery from a Grade II or Grade III sprain is unlikely to occur without medical attention.

Recovery from Sprain
Recovery from a sprain involves promoting the healing of the ligament, elimination of swelling and bruising, increasing strength, and restoring proprioception. At Physical Therapy of Los Gatos the goal of treatment is returning the individual to their pre-injury level of activities and sports, without elevated risk of re-injury. If our runner returns to training on the Los Gatos Creek Trail without fully restored proprioception, he or she will find intense concentration is needed on the exact placement of each foot-fall to prevent the injured ankle from rolling inward again. Longer term, residual changes in joint forces and mechanics, due to incomplete recovery, can accelerate degenerative changes and conditions, such as arthritis.

Restoring Proprioception
Proprioception is based on neural feedback loops that carry and compare information from the eyes and middle ear, and from the stretch receptors of muscles and connective tissues. Following a sprain injury, proprioception is restored by thoroughly rehabilitating neuromuscular control over the affected joint with facilitory techniques such as compression, vibration, and biofeedback. This must be accomplished in a way that promotes, rather than impairs, healing of the injured ligament, and trains the surrounding muscles to assist the injured ligament in supporting the joint while it heals.

Elements of Therapy for Sprain
Therapy begins with a thorough evaluation of the sprain injury. If a Grade III sprain is suspected, the injury should be evaluated by an orthopedic specialist, who will order and evaluate X-ray or MRI images to detect any damage to the underlying bone structure of the affected joint and to obtain a clear picture of soft tissue injuries. Evaluation of a sprain performed by a physical therapist or a physician will also include stress tests to measure the extent of abnormal joint motion caused by the injury, and the progressive tightening of the joint as the injured ligament heals, as compared to the stress-bearing characteristics of the opposite joint and normative values.

In addition to specific, individualized strengthening exercises aimed at re-establishing neuromuscular control and joint strength, physical therapy for sprain should also include evaluation and training of muscles affecting the entire limb of the injured joint. For instance, when ankle pain, weakness, or injury compromise proprioceptive cues, the hips and low back muscles will compensate by altering the injured individuals’ walking and running patterns. Because the goal of therapy is complete recovery, including normal or improved function, specific, progressive exercises are prescribed over the course of rehabilitation to restore motion, strength, and control throughout the entire limb.

If you suspect you have a joint injury involving ligament sprain, please contact us for expert advice by calling (408) 358-6505. For additional information about ankle sprain, see the related article “Foot and Ankle Injuries of Ballet Dancers.”

Injuries arising from inadequate or incorrect neuromuscular control during practice or performance, or poor management of an existing orthopedic injury, can sideline a ballet dancer for a season or for an entire career. In a recent workshop on the diagnosis, treatment, and prevention of foot and ankle injuries, Physical Therapy of Los Gatos physical therapist Ariel Lehaitre showed members of a local studio how to avoid and manage specific problems for which ballet dancers are at increased risk due to the physical challenges of their art.

With years of experience as a student of ballet, and specialized training in body mechanics and motions, Ariel brings a unique and valuable body of essential health information to the Bay Area ballet dance community. Though the workshop is incomplete without Ariel’s comments, explanations, and demonstrations, the presentation visuals available below provide useful information on specific dance injury types, causes, and degrees of severity. Additional visuals cover elements of effective treatment designs that enable dancers to return to practice without pain or elevated risk of re-injury.

The clinical staff at Physical Therapy of Los Gatos has the specialized training and direct experience required to understand the unique orthopedic challenges of ballet and provide care that produces complete recoveries from dance injuries. To discuss an individual concern, please contact us by calling (408) 358-6505.

Presentation visuals from workshop presentation “Foot and Ankle Injuries of Ballet Dancers” by Ariel Lehaitre (12 MB .pdf download)

An unintended consequence of the increase in sports participation by girls and young women over the past thirty years has been an extraordinary rise in the incidence of anterior cruciate ligament (ACL) injuries in young female athletes. At the college level, one in ten young female athletes participating in sports such as soccer, volleyball, and basketball will suffer an ACL tear injury. These girls are typically unable to practice or compete for one or more seasons and face potential loss of scholarship funding and significant psychological trauma. A widely cited 1985 study found that at the high school level, the knee injury rate among female athletes is one per 100 participants, and noted the need for preventative measures.

In 1983, sports medicine researchers determined that four-fifths of ACL injuries are non-contact injuries, that is, they are caused by the athlete’s own motions rather than collisions with other players. To the researchers, this finding meant that the high incidence of ACL tear injuries in young female athletes might be greatly reduced if those motions could be identified and avoided.

The ACL is one of four major ligaments that connect the upper and lower leg at the knee. The ACL provides joint stability and supports cutting and pivoting motions. Oftentimes, the ACL will tear with a “pop” that can be heard by spectators and other players. Pain and immediate swelling follow. ACL tears require surgical reconstruction using tendon grafts from other areas of the knee or from cadavers, followed by a long period of rehabilitation.

The frequency and seriousness of ACL tears in young female athletes has led to research studies aimed at understanding the problem. These studies are now yielding valuable data. Three major hypotheses to account for the higher number of ACL tears in female athletes versus male athletes have been examined: hormonal differences causing laxity of the female athlete’s ACL, a smaller and more narrow space within the knee for the female athlete’s ACL, and sex-based differences in lower extremity strength and coordination. The last of these three hypotheses is receiving the most scientific support from study data.

Certain aspects of lower extremity strength and coordination can be captured and measured by videotaping athletes while they perform athletic movements in the research lab. While video recordings do not capture complex three-dimensional movements and the rotational stresses that these movements place upon the knees, the recordings do enable researchers to make close measurements of joint and limb positions in a single plane. These measurements were found to have predictive value.

In one well-designed study of 205 young female athletes, researchers found that athletes with a specific way of posturing their lower extremities, known as “valgus” (or “knock-kneed”) alignment, during certain athletic movements were more likely to suffer ACL injury than athletes with more “neutral” or straighter lower extremity alignment. This valgus alignment can be seen by analyzing the angles formed between the ankles, knees, and hips when the athlete lands from a jump off a small box and when she jumps vertically from a crouched position. A separate study that included videographic analysis of 325 young female athletes showed that a six-week neuromuscular training program corrected the lower limb valgus alignment associated with injury during jump landing and takeoff.

It is already well-known to physical therapists that muscular strength stabilizes the knee by helping to maintain the correct relative positions of knee structures during sports movements and by allowing muscles in the legs to absorb forces that would otherwise subject the joint to potential injury. But physical therapists treating young female athletes must now consider the implications of the new studies. Physical therapists familiar with these studies infer that rehabilitation from ACL injury should, in addition to conventional strength training treatment methods, include specific neuromuscular training aimed at improving the athlete’s ability to avoid valgus alignment of the lower extremities during high-risk sports.

It is no longer acceptable to reconstruct the ACL but leave neuromuscular control deficient.

The jump strength training program at Physical Therapy of Los Gatos is an element of rehabilitation from surgical reconstruction of the ACL as well as a standalone performance improvement module. The program includes jump analysis, strength conditioning, and neuromuscular training designed to improve power and acceleration. The neuromuscular training methods employed include visual, auditory and proprioceptive cues to train athletes to use muscular strength to absorb jump impacts in a controlled fashion, and, if necessary, to correct jumping, landing, and pivoting techniques in order to avoid forces associated with injury. For additional information about prevention of ACL injury, rehabilitation from surgical ACL repair, and jump strength performance training for athletes, please call Physical Therapy of Los Gatos at (408) 358-6505.