Discussion
muscle mass gain, fatigue
OXIDATIVE STRESS
In this study, we investigated the effects of matcha green tea consumption on adaptation to resistance training in young men. After the 8-week intervention (trial 1), a greater change in leg strength was found in the matcha group. Furthermore, a higher muscle weight in response to training for 12 weeks was found in the matcha group (trial 2). These results suggest that dietary matcha green tea may accelerate muscle adaptation to resistance training. During adaptation to resistance exercise training, more muscle fibers are mobilized in the early stage. Muscle fibers become thicker with continued training; therefore, an extended training period results in significant muscle mass gain, further increasing muscle strength [The change in salivary cortisol secretion was lower in the matcha group than that in the placebo group. This salivary indicator indirectly reflects the activation of the sympathetic nervous and hypothalamic-adrenal systems associated with stress [Oxidative stress may cause fatigue owing to excessive exercise [Visual function is also associated with physical fatigue and has been shown to be lower in fatigued individuals than in their non-fatigued counterparts [Metagenomic analysis of gut microbiota revealed significant changes in five genera of bacteria following matcha intake. 