What is a key indicator of muscular degeneration?

Reduced flexibility is a key indicator of muscular degeneration because it reflects the loss of elasticity and range of motion in muscles and connecting tissues. As muscles degenerate, they may become stiff and less capable of stretching and contracting effectively. This can result from various factors, including aging or disuse. The lack of flexibility is often an early warning sign that the muscles are not functioning optimally, which can lead to impaired movement and increased risk of injury.

In contrast, increased endurance would indicate that muscles are responding well to physical demands. Enhanced muscle tone signifies a healthy level of muscle engagement and strength, which is the opposite of what one would expect with muscular degeneration. Improved aerodynamics relates to the efficiency of movement and does not directly connect to muscle health or degeneration. Thus, the presence of reduced flexibility strongly correlates with muscular degeneration and highlights the decline in muscular function.