49. What is a symptom of sarcopenia?

Answer: A

Explanation:

Loss of muscle mass due to aging

Sarcopenia is primarily characterized by the loss of muscle mass, strength, and function as a result of aging. This condition significantly impacts mobility and overall health in older adults.

A) Loss of muscle mass due to aging

This option accurately describes a key symptom of sarcopenia. As individuals age, they experience a decline in muscle mass, which is a central feature of this condition, leading to diminished physical performance and increased risk of falls.

B) Thinner skin due to aging

While thinner skin can occur with aging, it is not a symptom of sarcopenia. This option relates more to dermatological changes rather than the muscular degeneration associated with sarcopenia.

C) Body fat loss due to aging

Body fat loss is not a defining characteristic of sarcopenia. In fact, many individuals may experience an increase in body fat percentage as they lose muscle mass, rather than a direct loss of body fat.

D) Height loss due to aging

Height loss can occur with aging due to factors such as vertebral compression, but it is not a symptom of sarcopenia. This option conflates skeletal changes with muscle deterioration, which are distinct processes.

Conclusion

The correct answer, loss of muscle mass due to aging, directly aligns with the definition and symptoms of sarcopenia, distinguishing it from the other options which focus on different aspects of aging. The other choices do not pertain to the muscle-related decline that defines sarcopenia, highlighting why they are incorrect.