How does physical development during adolescence primarily manifest in boys?

During adolescence, boys experience significant physical development characterized by a dramatic increase in muscle strength and overall muscularity. This process is largely driven by hormonal changes, particularly increased levels of testosterone, which contributes to muscle mass development and strength.

During this phase, boys also undergo growth spurts that not only enhance their height but also promote the growth of lean body mass, leading to greater strength. The increase in muscle development is part of the transition into adulthood, where physical capabilities become more pronounced and achieve peak performance.

This developmental phase is contrasted with other changes, such as fat accumulation and slower growth patterns, which are more typical in certain developmental stages or may occur in girls during their own periods of growth. However, in boys specifically, the notable aspect of their physical development is the enhancement of muscle strength and size, making it a defining characteristic of adolescence for them.