What symptom is NOT typically associated with disuse atrophy?

Muscle disuse atrophy refers to the reduction in muscle mass and strength due to a lack of physical activity or immobilization. The correct answer highlights that increased muscle function is not typically seen with disuse atrophy. Instead, disuse atrophy leads to various symptoms that reflect a decline in muscle performance.

When muscles do not receive regular mechanical stimulation through exercise, they begin to shrink and weaken. This is why a reduction in muscle size, muscle weakness, and decreased muscle endurance are common symptoms associated with disuse atrophy. The body adapts to reduced use by breaking down muscle tissue, leading to atrophy and subsequent loss of function, hence the decline in endurance and strength. Increased muscle function, on the other hand, would imply an improvement in strength and endurance which is contrary to what occurs during disuse atrophy. Thus, identifying muscle function as increased distinguishes it from the effects of disuse atrophy.