“Effects of Casein Hydrolysate Containing Val-Pro-Pro and Ile-Pro-Pro on Muscle Pump, Muscle Hypertrophy, and Motivation in Resistance-Trained Men: A Placebo-Controlled, Double-Blind, Parallel-Group Comparison Study: Original Research” (2026) Journal of Exercise and Nutrition, 9(1). doi:10.53520/jen2026.103214.