Temporal Influences of Functional Knee Bracing on Torque Production of the Lower Extremity

in Journal of Sport Rehabilitation
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Functional knee braces (FKB) are used prophylactically and in rehabilitation to aide in the functional stability of the knee.


To determine if alterations in select lower extremity moments persist throughout a one hour period in healthy individuals.


2X5 repeated measures design.


Biomechanics Laboratory.


Twenty subjects (14 male and 6 female, mean age 26.5±7 yrs; height 172.4±13 cm; weight 78.6±9 kg), separated into braced (B) and no brace (NB) groups.


A one-hour exercise program divided into three 20 minute increments.

Main Outcome Measures:

Synchronized three-dimensional kinematic and kinetic data were collected at 20-minute increments to assess the effect of the FKB on select lower extremity moments and vertical ground reaction forces.


Increase in hip moment and a decrease in knee moment were noted immediately after brace application and appeared to persist throughout a one hour bout of exercise.


The FKB and the exercise intervention caused decreases in knee joint moments and increases in hip joint moments.

Brian Campbell is with Bowling Green State University Kinesiology Division in Bowling Green, Ohio 43403. Email: campbeb@bgnet.bgsu.edu. James Yaggie and Daniel Cipriani are with the Department of Exercise and Nutritional Sciences at San Diego State University, San Diego, CA 92182.