Search Results for: biomechanics

May 2018

Flip flops, bare feet, or sports shoes: Which are best and which are worst?

Many have long suspected the answer, but a new study would appear to resolve the question: Are flip flops really that bad for your feet? According to Chen and colleagues from the Department of Biomedical Engineering at The Hong Kong Polytechnic University, flip flops are most likely no better than barefoot when it comes to lower-limb co-contraction and joint contact force in the ankle. Continue reading

May 2018

In a perfect world, no one would need health insurance

In my podiatric practice, I have found that health insurance can impede patient care, by adding layers of complication and burden to all involved, particularly the patient and the provider. Private-sector insurance companies have profits to make, buildings to build, shareholders to satisfy, and overhead costs to pay. Government-run plans have costs, exclusionary policies, bureaucratic oversight, and a changing landscape as administrations change.

By Jay Segel, DPM Continue reading

April 2018

Gait therapy in osteoarthritis of the hip: An assessment

Although clinicians and researchers have been gathering data for the use of gait therapy in patients with knee OA for some time, its use in hip OA is less far along, but shows promise. Does correcting for gait abnormalities have a role in the treatment of hip osteoarthritis (OA)?

By Nicole Wetsman Continue reading

April 2018

Does athletes’ divided attention affect mechanics associated with ACL injury?

We might be falling short in our efforts to prevent ACL injury by allowing athletes to focus on how they are moving during screening. Almost 8 million athletes participate in high school sports each year in the United States, and an additional 490,000 compete at the intercollegiate level.

By Sarah Marie Tighe, SPT, and Thomas Gus Almonroeder, PT, DPT, PhD Continue reading

March 2018

Is it the foot— or the footwear? Considerations for protecting a diabetic foot

In diabetes, assessing the mechanical properties of the patient’s soft tissues and the properties of footwear and orthoses comes before drafting a management plan.

By Nachiappan Chockalingam, PhD Continue reading

March 2018

Navigating disruption in the foot orthotics landscape—Are you ready?

For more than 50 years the custom foot orthotic industry has pretty much stayed the same. Of course, change has occurred, such as the introduction and widespread adoption of digital casting and CAD/CAM production vs hand-poured plaster. Continue reading

March 2018

Reliability of FPI-6 in older adults warrants caution

Because it uses 6 items to quantify and classify foot pressure, the Foot Pressure Index-6 (FPI-6) is considered a more complete measure than many others. The FPI-6 has been validated for use with adults aged 18 to 57, where it can play a role in identifying risk factors for sports and training injuries. Continue reading

February 2018

Core weakness may lead to low back pain in runners

Deep core-muscle weakness in runners leads to compensation strategies that increase pressure and loading on the spine, which may increase the risk of low back pain, a new analysis demonstrates. Continue reading

February 2018

Group urges training exercises to prevent ACL injury

Athletic trainers and healthcare professionals have a fresh set of recommendations to help prevent noncontact and indirect contact anterior cruciate ligament (ACL) injuries in athletes and physically active people. The position statement, “Prevention of Anterior Cruciate Ligament Injury,” from the… Continue reading

February 2018

Strengthening the Interprofessional Approach to Fall Prevention

Health care professionals who work with older adults are all too familiar with the devastating sequelae of falls, including injury and fear of falling that can lead to activity restriction and further risk of falls. Most worrisome is that death rates from falls have doubled between 2000 and 2014, which highlights the importance of sustaining existing fall prevention efforts, and of building new ones. Continue reading

February 2018

Assessing Limb Length Discrepancy

Leg-length discrepancy and its sequelae are best considered a syndrome affecting many regions of the body through the closed kinetic chain. Most cases require comprehensive, cross-disciplinary treatment. The authors present a novel scoring system for diagnosis.

By Jay Segel, DPM; Susan Sanford, PT, L.Ac, C.SMA; Sally Crawford, MS; and Lori Yarrow, DC, BPE Continue reading

February 2018

Implications of asymmetry in the treatment of injured athletes

Given that many uninjured, successful athletes have some degree of asymmetry, how do clinicians interpret asymmetry in athletes recovering from injury?

By Cary Groner Continue reading

February 2018

Do specialty shoes boost weightlifting performance?

Sport-specific shoes may protect athletes from injury or enhance their performance. Do specialty weightlifting shoes offer these same benefits? What effect do the shoes have on posture, rearfoot force production, ankle range of motion, the ability to bend the knee deeply,  and other para­meters? Research is mixed.

By Jill R. Dorson Continue reading

January 2018

Patellofemoral pain: More activity means more pain — and then less activity?

People with PFP are less physically active than healthy controls, with regard to both steps per day and minutes of mild, moderate, and intense activity. Increases in activity-related pain may cause…

By Neal R. Glaviano, PhD, AT, ATC; Andrea Baellow, MS; and Susan Saliba, PhD, MPT, Med Continue reading

January 2018

Saying ‘PTTD’ is misleading: It’s time for a new lexicon to distinguish pathologies

The author applies his experience designing ankle foot orthoses to propose that, instead of using diagnostic language to describe medial column ligamentous failure, practitioners learn a new, descriptive language to understand the nature of a patient’s pathology.

By Ian Engelman, MS, CPO Continue reading

January 2018

Can minimalist shoes protect against injury by increasing foot-muscle thickness?

Improvement in abductor hallucis muscle size associated with a gradual transition to minimalist running shoes suggests that this type of strength-based approach can help improve foot structure and stability, which may…

By Nicholas A. Campitelli, DPM, FACFAS; and Scott A. Spencer, DPM Continue reading

Special Editorial Supplements

UP THE CHAIN: How lower extremity care can improve spinal health CONFERENCE COVERAGE: 2017 ISPO World Congress CONFERENCE COVERAGE: 2017 IOC World Conference CONFERENCE COVERAGE: 2015 ISPO World Congress CONFERENCE COVERAGE: Ortho Technology Forum 2015 Orthotic management of CMT: Dynamic … Continue reading

November 2017

Noraxon launches biomech data hub

Scottsdale, AZ-based Noraxon USA, a leader in human movement metrics and biomechanics research solutions, in November introduced the Ultium biomechanics research system. Continue reading

November 2017

McClain names Langer executive VP

McClain Laboratories, a clinical and research pathology laboratory based in Smithtown, NY, announced in November the appointment of Paul Langer as executive vice president, business development. Continue reading

November 2017

BRAINS, SPRAINS, AND CHRONIC PAIN: Concussion consequences may include osteoarthritis

As a growing number of studies report associa­tions between concussion and musculoskeletal injury risk, new research suggests concussed athletes may also have an increased risk of osteoarthritis later in life.

By Robert C. Lynall, PhD, ATC; Timothy C. Mauntel, PhD, ATC; David R. Howell, PhD, ATC; and Thomas A. Buckley, EdD, ATC Continue reading

November 2017

From barefoot running to diabetic neuropathy

Because footwear alters sensory perception, research examining the role of cutaneous feedback in barefoot running may provide important insight related to some of the gait changes that occur in patients with…

By Melissa Thompson, PhD, and Kristine Hoffman, DPM, FACFAS Continue reading

November 2017

Assessing runners’ gait using wearable sensors

Wearable sensors allow for the collection of running biomechanics data outside the laboratory in natural training environments, enabling clinicians to collect a large volume of information in a relatively short time to help identify and manage individuals who may be at risk for running-related injuries.

By Rachel Koldenhoven, MEd, ATC; and Alex DeJong, MEd, ATC Continue reading

November 2017

Out on a limb: Low tech, high value

The use of advanced technologies to provide feedback to patients during rehabilitation is all the rage in lower extremity healthcare. But, as exciting as these new modalities can be, it’s important to remember that low-tech feedback strategies can make hi-tech data even more clinically useful.

Jordana Bieze Foster, Editor Continue reading

October 2017

Equinus and RA: Limited dorsiflexion exists without pain

Patients with rheumatoid arthritis (RA) have decreased ankle dorsiflexion due to gastrocnemius contracture, even in the absence of foot and ankle pain, according to research from Michigan that may have implications for early intervention to minimize pain and dysfunction in this patient population.

By Katie Bell Continue reading

October 2017

Implications of high ankle sprains in college athletes

High ankle sprains in collegiate athletes differ from lateral or medial ankle sprains in multiple clinically relevant ways. These include loss of sports participation time, mechanism of injury, rates of injury during competition versus practices, and the possible long-term risk of osteoarthritis.

By Timothy C. Mauntel, PhD, ATC; and Zachary Y. Kerr, PhD, MPH Continue reading