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Mean vastus lateralis EMG (sEMGVL) during parallel-depth slow-tempo (TS), volitional speed (VS), and jump (JS) squat conditions (n = 10). Values are presented as a percentage of muscle activity during an unloaded jump squat. *Indicates significant difference between TS and JS. Range of SEM at 20, 40, 60, 80, and 100% movement duration is 11.7–84.8% activity of the unloaded jump squat.
