The purpose of this study was to characterize peak knee extensor moments (pKEMs) at three commonly practiced squat depths at above parallel, parallel, and full depth, and with three barbell loads: 0%, 50%, and 85% depth-specific one repetition maximum (1RM). Nineteen healthy, recreationally active females performed randomized pairs of both depth and load. Inverse dynamics was used to obtain pKEMs from three-dimensional knee kinematics.
The findings suggest that the effect of load on female pKEMs varies with depth. At full depth, pKEMs were significantly higher than parallel for all three 1RM loads, and above parallel with 0 and 50% 1RM loads. At parallel depth, pKEMs were significantly lower than above parallel and full depths with an 85% 1RM load. It is therefore important to first assess which squat depth is appropriate for the individual before training with loads.
|Commitee:||Becker, James, Burkhardt, Eric|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 56/01M(E), Masters Abstracts International|
|Subjects:||Womens studies, Kinesiology|
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