21. What is a symptom of sarcopenia?

Answer: C

Explanation:

Loss of muscle mass due to aging

Sarcopenia is characterized by a progressive loss of muscle mass and strength that occurs as part of the aging process. This condition significantly impacts mobility and function in older adults.

A) Thinner skin due to aging

Thinner skin is a common consequence of aging, but it is not a symptom of sarcopenia. While skin changes can occur alongside the aging process, they do not directly relate to the loss of muscle mass, which is the defining factor of sarcopenia.

B) Body fat loss due to aging

Body fat loss can occur with aging, but it is not specifically indicative of sarcopenia. In fact, sarcopenia often leads to an increase in body fat percentage as muscle mass declines, which makes this option incorrect in the context of sarcopenia.

C) Loss of muscle mass due to aging

This option accurately describes sarcopenia. As individuals age, they experience a decrease in muscle mass and strength, which is a key symptom of this condition. This loss can lead to increased frailty and decreased physical function, making this the correct choice.

D) Height loss due to aging

Height loss can occur due to various factors related to aging, such as osteoporosis and compression of the spinal discs, but it is not a direct symptom of sarcopenia. As such, this option does not represent the core issue associated with sarcopenia.

Conclusion

The correct answer, loss of muscle mass due to aging, precisely defines sarcopenia and highlights its significant impact on the elderly population's health and functionality. In contrast, the other options either relate to different aspects of aging or do not encompass the primary characteristic of sarcopenia, reinforcing the importance of recognizing muscle loss as a critical symptom.