Collagen Peptide Supplementation Enhances Muscle–Tendon Stiffness and Explosive Strength: A 16-wk Randomized Controlled Trial

Daily CP supplementation increases both muscle and tendon stiffness in healthy young males. The enhancement of muscle stiffness appears to contribute to improved explosive muscle strength. These findings suggest that CP supplementation may serve as an effective nutritional intervention for modifying muscle mechanical properties and potentially enhancing athletic performance, particularly in activities requiring rapid force production.