Strength & Conditioning

Document Type



The purpose of this study was to examine possible effects of hip flexor contractures on changes in pelvic anterior tilt during the squat. Twenty recreationally active subjects were evaluated for hip contracture using the Modified Thomas test. Eight subjects were found to have iliopsoas contracture and twelve were found to have rectus femoris contracture. A 2x8 mixed-model repeated measures ANOVA was completed between the positive and negative hip contracture groups for both the iliopsoas and rectus femoris results. No significant differences were found between the hip contracture groups for the iliopsoas (p=.90) or the rectus femoris (p=.18). These results indicate the Modified Thomas test results about hip contracture do not have an effect on changes in pelvic motion during the squat.