What does flexibility measure in the context of fitness?

Flexibility in the context of fitness specifically measures the range of motion in joints. This is determined by the elasticity of muscles, tendons, and ligaments that surround and support the joints. A greater flexibility allows for a more extensive range of motion, which can improve overall physical performance and reduce the risk of injuries. Flexibility plays a significant role in various physical activities, influencing how effectively one can perform movements and maintain proper posture.

In contrast, cardiovascular capability assesses the efficiency of the heart and lungs during physical activity, while muscle mass refers to the amount of muscle tissue in the body, which is related to strength rather than flexibility. The rate of recovery from exercise relates to how quickly the body returns to its resting state post-exercise, which is a different aspect of physical fitness entirely.