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Jan 30, 2007 · Strength improves when sufficient tension is applied to the muscle fiber and its contractile proteins. The tension required seems to be above two thirds of the muscles maximal force. If you do …

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Aug 20, 2025 · This 8-week squat program blends heavy lifts, explosive speed work, and full-body training to increase strength, build muscle, and hit a new 1RM.