Recent research suggests that performing resistance exercise training with relatively light loads is equally as effective at increasing muscle mass and muscle strength as performing resistance exercise training with relatively heavy loads. Whether or not performing resistance exercise with relatively heavy loads or light loads is equally as effective between the upper- and lower-body within the same individual has never been investigated. Given the substantial individual variance in resistance exercise training-induced changes in muscle mass and strength, this study is designed to quantify the relative influence that extrinsic training variables (e.g., load), as opposed to intrinsic muscle-based predisposition, has on resistance training-induced changes in muscle mass and muscle strength.
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Change in fat-free mass
Timeframe: up to 12 weeks
Change in vastus lateralis thickness
Timeframe: up to 12 weeks
Change in vastus lateralis cross sectional area
Timeframe: up to 12 weeks
Change in biceps brachii thickness
Timeframe: up to 12 weeks
Change in biceps brachii cross sectional area
Timeframe: up to 12 weeks
Change in muscle fibre cross sectional area
Timeframe: up to 12 weeks