What is meant by "hypertrophy" in strength training?

Hypertrophy in strength training specifically refers to an increase in the size of muscle fibers, resulting from resistance training and related physical activities. This process occurs when the muscles are subjected to stress and micro-tears during exercise, especially in strength training, which the body then repairs, leading to an increase in muscle cross-sectional area.

The focus of hypertrophy is primarily related to muscle growth, driven by factors such as mechanical tension, muscle damage, and metabolic stress. By stimulating the muscles adequately through various forms of resistance training, individuals can elicit hypertrophic adaptations, which enhance muscle mass, strength, and overall performance in physical activities. This understanding is essential for designing effective strength training programs aimed at increasing muscle size.

Other options related to decreased strength, endurance training, or shifts in body composition do not capture the essence of hypertrophy, which is squarely aimed at muscle fiber growth.