Effect of position and alteration in synergist muscle force contribution on hip forces when performing hip strengthening exercises.

ABSTRACT:

Background

Understanding the magnitude and direction of joint forces generated by hip strengthening exercises is essential for appropriate prescription and modification of these exercises. The purpose of this study was to evaluate hip joint forces created across a range of hip flexion and extension angles during two hip strengthening exercises: prone hip extension and supine hip flexion.

Methods

A musculoskeletal model was used to estimate hip joint forces during simulated prone hip extension and supine hip flexion under a control condition and two altered synergist muscle force conditions. Decreased strength or activation of specific muscle groups was simulated by decreasing the modeled maximum force values by 50%. For prone hip extension, the gluteal muscle strength was de

SUBMITTER: Lewis CL 

PROVIDER: S-EPMC2677193 | biostudies-literature | 2009 Jan

REPOSITORIES: biostudies-literature