2016•ISBS - Conference Proceedings ArchiveRequires access
THE RELATIONSHIP BETWEEN FORCE PRODUCTION DURING ISOMETRIC SQUATS AND KNEE FLEXION ANGLES DURING LANDING
H. T. Fisher, Mitchell Stephenson, Kyle K. Graves, Taylour J. Hinshaw, Boyi Dai
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Abstract
The current study quantified the relationship between force production during isometric squats performed at different external knee flexion angles (40, 60, 80, and 100 degrees) and initial and peak knee flexion angles during landing. A total of 18 male and 18 female recreational/collegiate athletes completed a jump-landing-jump task and four maximal isometric squats at different knee flexion angles. Significant correlations were observed between peak force production during isometric squats and initial and peak knee flexion angles during landing for females, but not for males. For females, decreased isometric strength during squats was associated with decreased knee flexion during landing. For males, isometric strength alone may not be sufficient to explain differences in knee flexion during landing. Future studies are warranted to study the effect of postural-specific strength training on landing mechanics in females.