What does hypertrophy refer to?

Hypertrophy specifically refers to the increase and growth of muscle cells, which is particularly relevant in contexts such as physical training and muscle development. This physiological process occurs when muscle fibers increase in size due to factors like resistance training or increased workload on the muscles, resulting in a greater cross-sectional area. This adaptation allows the muscles to generate more force and has implications for strength, endurance, and overall physical fitness. Understanding hypertrophy is crucial for designing effective exercise programs and for rehabilitation processes where muscle size and strength are essential for recovery and function.