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Physical Therapy Publications

Biomechanics

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Full-Text Articles in Rehabilitation and Therapy

Sex-Related Differences In Gait Characteristics And Their Associations With Symptoms In Individuals With Patellofemoral Osteoarthritis, Harvi Hart Dr. Oct 2023

Sex-Related Differences In Gait Characteristics And Their Associations With Symptoms In Individuals With Patellofemoral Osteoarthritis, Harvi Hart Dr.

Physical Therapy Publications

Background

Patellofemoral osteoarthritis (OA) is an important subgroup of knee OA. However, the influence of sex on gait characteristics in patients with patellofemoral OA is unknown.

Research question

Compare gait characteristics in females and males with patellofemoral OA and investigate their associations with patellofemoral joint-related symptoms and limitations.

Methods

Mixed effects polynomial regression models compared knee flexion-extension and adduction moments, knee flexion angles, and vertical ground reaction forces over 100% of stance between 26 females and 22 males with patellofemoral OA, with and without adjustment for walking speed and body mass. Multivariable linear regression models were then used to …


Male And Female Runners Demonstrate Different Sagittal Plane Mechanics As A Function Of Static Hamstring Flexibility, D. S. Blaise Williams Iii, Lee M. Welch Jan 2015

Male And Female Runners Demonstrate Different Sagittal Plane Mechanics As A Function Of Static Hamstring Flexibility, D. S. Blaise Williams Iii, Lee M. Welch

Physical Therapy Publications

Background:

Injuries to runners are common. However, there are many potential contributing factors to injury. While lack of flexibility alone is commonly related to injury, there are clear differences in hamstring flexibility between males and females.

Objective:

To compare the effect of static hamstring length on sagittal plane mechanics between male and female runners.

Method:

Forty subjects (30.0±6.4 years) participated and were placed in one of 4 groups: flexible males (n=10), inflexible males (n=10), flexible females (n=10), and inflexible females (n=10). All subjects were free of injury at the time of data collection. Three-dimensional kinematics and kinetics were collected while …