Caffeine Augments Sustained Hyperemia in Previously Exercised Leg in Male Competitive Long-Distance Runners. - Fujii, Naoto; Hirayama, Taiga; Matsutake, Ryoko; Ohki, Shota; Nabekura, Yoshiharu; Hiroyama, Tsutomu; Nishiyasu, Takeshi (International Journal of Sport Nutrition & Exercise Metabolism, 2025)