Sarcopenia is characterized by which of the following?

Correct option is B

The correct answer is (b).
Introduction
Sarcopenia is the age‑related loss of skeletal muscle mass and function, leading to decreased strength and mobility. It is a major concern in gerontology and sports medicine.
Information Booster

• Sarcopenia involves reduced muscle fibre size and number.
• It is associated with aging, not exclusive to young athletes.
• Bone density typically decreases, not increases.
• Sarcoplasmic reticulum changes are not characteristic.

• Option A: bone density decreases with age.
• Option C: occurs in older adults.
• Option D: not related to sarcopenia.