The parallel squat (thighs parallel to ground in “down” position) is more beneficial for subsequent jump performance than the quarter- or half-squat, according to a recent study in the Journal of Strength and Conditioning Research.
The authors suggest that the greater the depth of the squat, the greater the increase in gluteus maximus activation and work produced, which is responsible for the increased jump performance.
The study also cites an increase in postactivation potentiation as it relates to back squat depth. Postactivation potentiation refers to increased muscular force generation after previous muscular activity.
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