Search Results for: biomechanics

April 2020

Unique Times, Unique Opportunities

We are living in an exceptional time. Like you, we’re sheltering in our homes and donning face masks when we venture out. We’re happy to play our part to prevent the spread of the novel coronavirus that leads to COVID-19, but we’ll sure be happier when things return to normal…. But the reality is that there will be a new normal, and we can’t quite see what that looks like just yet.

By Rich Dubin, Publisher, and Janice T. Radak, Editor, LER Continue reading

April 2020

Early Orthotic Intervention in Pediatric Patients, Part 3: Muscular Dystrophy

Improving patient care includes questioning traditional treatment approaches; in this case, it’s also about developing ways to enhance and augment those techniques. The first two articles in this series looked, respectively, at early orthotic intervention in children with cerebral palsy (CP) and in those with Down syndrome and other neurological conditions.

By Cary Groner Continue reading

April 2020

The Role of Exercise Therapies for the Management of Posterior Tibial Tendon Dysfunction

Clinicians may find the EdUReP theoretical framework provides helpful guidance for exercise prescription and load management for patients with this potentially disabling condition. Despite the substantial gains in knowledge and understanding of lower extremity tendinopathies in recent years..

By Talysha Reeve, B.App.Sc.(Podiatry), GradCertClinRehab Continue reading

March 2020

AFO Configuration Can Improve Efficacy of the Orthotic Intervention on Gait Patterns in CP Patients

Cerebral Palsy (CP) represents the most common cause of motor disability in childhood with dysfunctional gait being one of the main problems. Early adoption of intervention programs adapted to the patient’s functional limitation and disability represent the current standard of care; therapeutic approaches include Ankle-Foot Orthoses (AFOs) for which the evidence shows they…

By Keith Loria Continue reading

March 2020

Injury Prevention Keeps Dancers on Their Toes

Unique partnership between University Hospitals’ Sports Medicine Team and the Cleveland Ballet focuses on performer preparation to avoid long-term problems. Efficient movement in ballet is easy to recognize, as every step the dancer takes flows seamlessly into the next, representing a perfect balance of muscular engagement and release.

By Douglas J. Guth  Continue reading

February 2020

Guest Editorial: Understanding Pronation

As a podiatrist, athlete, coach, and independent running shoe proprietor, I have always had an interest in biomechanics and the impact on lower extremity overuse injuries and conditions. Perhaps the most well-known biomechanical term, pronation, is also the most misunderstood. In his recent article, Benno Nigg et al.

By Mark Mendeszoon, DPM Continue reading

February 2020

White Paper: Foot Pronation

Over the past decades, pronation has been discussed as a potential risk factor for injuries or as the mechanism behind impact damping. However, little is understood about pronation. The objectives of this paper were to (a) define and differentiate between the terms of pronation and eversion, (b & c) underline the importance and problematic aspects of pronation.

By Benno Nigg, Anja-Verena Behling, and Joseph Hamill Continue reading

February 2020

Virginia Tech Researchers Developing Smart Prosthetic Socket to Improve Comfort, Performance

A Virginia Tech research team, led by Associate Professor Michael Philen, PhD, of the Kevin T. Crofton Department of Aerospace and Ocean Engineering, and Professor Michael Madigan, PhD, of the Grado Department of Industrial and Systems Engineering, has received a $400,000 National Science Foundation grant to study residual limb volume loss and develop smart prosthetic sockets to improve comfort and performance in prostheses. Continue reading

January 2020

Going Boldly Into 2020…and Beyond

As we enter a new year AND a new decade, it’s important to affirm our foundation and set our sights on new directions. One of LER’s key strengths is the breadth of our multi-disciplinary highly collaborative audience—and we don’t intend to change that.

By Rich Dubin, Publisher Continue reading

January 2020

A Guide to Individualized Management of Foot Drop

Most patients benefit from nonsurgical care of foot drop. Your task is to identify the optimal bracing options and work closely with the patient to understand their personal treatment expectations and goals.

By Jason Wright, DPM, PGY-2, And Marshall G. Solomon, DPM, FACPM, FACAS Continue reading

January 2020

Instant Foot Support with New ExtraArches

PediFix is now offering new, self-adhering arch support pads that relieve heel, arch, and general foot pain. ExtraArches support pads are anatomically shaped to provide instant, lasting support with fabric-covered Visco-GEL that never bottoms out. Continue reading

October 2019

With Heartfelt Thanks and Appreciation

As another year draws to a close, the natural inclination is to look ahead and plan for the future. But the beauty of the year’s end also gives us the chance to look back and appreciate the path we have travelled, the lessons we have learned, and the many, many people and organizations who have helped us on that journey.

By Janice T. Radak, Editor, and Rich Dubin, Publisher Continue reading

October 2019

Extra Cushioning May not Help Shoes Prevent Injuries

While innovations in running shoes have helped everyone from top athletes to casual joggers push the boundaries of speed, efforts to determine the characteristics of shoes that will help reduce injury risks are more elusive. In his lab at San Jose State University, JJ Hannigan, PhD, ATC, CSCS, is working to understand the way different levels of cushioning affect gait and running mechanics.

By Nicole Wetsman Continue reading

September 2019

Early Orthotic Intervention in Pediatric Patients, Part 2: Down Syndrome, other neurological conditions, and toe walking

Down Syndrome is associated with a long list of compensatory gait symptoms due to hypotonia, triplanar foot and ankle misalignments, sagittal and coronal compensation at the knee, proximal weakness, and equinus contractures, all of which need to be treated. How early depends on the individual child.

By Cary Groner Continue reading

August 2019

Force and Pressure: Understanding Differences and Purposes

Whenever I talk about foot pressure-mapping technology during my courses or keynote lectures at international conferences, I am always surprised by the volume of misunderstanding that surrounds  force and pressure measurements and questions about differences between them.

By Antonio Robustelli, MSc, CSCS Continue reading

August 2019

Early Orthotic Intervention in Pediatric Patients, Part I: Cerebral Palsy

Children with cerebral palsy (CP) typically encounter a host of gait- and balance-related issues associated with spasticity, dyskinesia, and weakness. How severe these are depends on CP type and the individual case. As a result, experts have long debated how early to intervene with bracing strategies that include ankle-foot orthoses (AFOs), and how long to maintain those interventions.

By Cary Groner Continue reading

August 2019

Pregnancy Changes the Body: Here’s What That Means for Gait, Balance, and Falls

About a quarter of women fall during pregnancy and 10% fall more than once. Understanding the biomechanical changes of this transitional period may help researchers find ways to prevent such falls. When Robert Catena’s wife was pregnant and working at a restaurant, she fell. It was scary, he says, but everything was ok.

By Nicole Wetsman Continue reading

July 2019

At All Levels and Categories of Cycling: Correct Poor Crank-arm Fit to Relieve Chronic Knee (and Hip) Pain

Consider recommending installation of shorter crank arms on a bike when a cyclist complains of knee or hip pain. After years of bike-fitting, here’s why we’ve concluded that this modification is invaluable. One of the biggest problems in bicycling, I’ve found, is that pain is considered normal. I (RS) am a master bike fitter and an elite cycling coach.

By Rick Schultz, MBA, DBA, and Amy Schultz, PT, DPT, CSCS Continue reading

June 2019

Bike Fitting Will Come Out From the Shadows and Into Rehab Armamentarium

Many readers may not have heard of it yet, but by the time LER turns 20, I predict it will be a common prescription…at least I hope it will be. I’m talking about bike fitting, of course. The number of individuals choosing cycling as transportation, hobby, sport, or community activity—whether it’s competitive or recreational—is increasing annually—up from around 43 million in 2014 to 47.5 million in 2017.

By Happy Freedman Continue reading

June 2019

Growing Awareness of Unicity Will Drive Sport Science

Like the athletes we study, the field of sport science is always in motion. When combined with medicine, it is a rich and growing environment in which the interaction between daily practice and clinical research contributes to an overall progression in understanding of human performance and biological adaptations.

By Antonio Robustelli, MSc, CSCS Continue reading

June 2019

What’s the Point of 3D Printing Orthotics? Options!

Recently, on the Facebook page of Craig Payne, creator of, there was discussion about a published study that compared running biomechanics and perceived comfort between a 3D-printed orthotic and a traditionally manufactured orthotic. The study showed there were no differences between the two devices.

By Bruce E. Williams, DPM Continue reading

June 2019

“Capstone” Research Has Great Value to Orthotics and Prosthetics

Georgia Institute of Technology initiated its Masters of Science in Prosthetics and Orthotics (MSPO) program in 2002, knowing that considerable advances in the profession would be possible if research was an emphasis in clinical education. Students entering the program came with added bases of knowledge, dominated by…

By Geza F. Kogler, PHD Continue reading

May 2019

PRACTICAL MATTER FOR CLINICIANS: Women Are Biomechanically Distinct From Men When They Run

Learn how men and women are constructed differently—and therefore why they each have a distinctive running gait—to be better equipped to manage, and prevent, female-specific lower-extremity sports injury. Starting at puberty, sex hormones begin to affect changes in bone and lean body mass—changes that are different in females than in males.

By Ray M. Fredericksen M.S. C-PED Continue reading

Hope for Seniors in Newly-Released Study on Balance and Falls

The Journal Gerontology Reports Ankle Foot Orthosis (AFO) Effective in Improving Balance and Reducing Fear of Falling Hauppauge, NY – June 19, 2019 – OHI, the leading manufacturer in North America of custom, lower extremity orthotic devices, today commented on … Continue reading

April 2019

Peak Tibial Accelerations as Real-time Measure of Impact Loading

Studies seeking to determine the effects of gait retraining through biofeedback on peak tibial acceleration (PTA) assume that this biometric trait is a valid measure of impact loading that is reliable both within and between sessions. However, data was lacking for the validity and reliability of these measures at the speed of endurance runners.

By Pieter Van den Berghe Continue reading