MICROANATOMY

Detailed explanation-1: -While aerobic workouts produce more slow twitch muscle fibers for better endurance, anaerobic exercise increases the size and quantity of powerful fast twitch fibers. This shift improves the power and strength of muscles and also increases hypertrophy, or size.

Detailed explanation-2: -Muscle hypertrophy occurs when muscle protein synthesis exceeds muscle protein breakdown and results in positive net protein balance in cumulative periods [7]. This could be achieved with both RT and protein ingestion, which stimulates muscle protein synthesis and leads to decreases in muscle protein breakdown [8].

Detailed explanation-3: -Skeletal muscle hypertrophy is the increase in muscle fiber cross sectional area that is accompanied by an increase in muscle volume and mass. Hypertrophy occurs in response to a higher load on muscle which activates inducible agents such as IGF-1.

Detailed explanation-4: -The results of this systematic review and meta-analysis suggest that single-mode aerobic training does not promote the same skeletal muscle hypertrophy as resistance training. This finding was consistent with measurements of muscle hypertrophy both at the whole-muscle and myofiber levels.