Aging muscles tend to lose what?

Aging muscles tend to lose what?

• A. Muscles gain flexibility and endurance
• B. Muscles lose strength but gain flexibility
• C. Muscles lose flexibility and endurance
• D. Muscles remain functionally the same

Answer: (C)

As people age, muscles typically lose mass and strength (sarcopenia) and also show declines in endurance and flexibility. The loss of muscle fibers and neural activation reduces how much force the muscles can produce, while declines in mitochondrial function and capillary density lessen endurance. At the same time, connective tissues stiffen and joints may move less freely, leading to reduced flexibility. Putting these together, aging muscles most often lose flexibility and endurance. The other descriptions don’t fit: gaining flexibility and endurance isn’t seen with aging; losing strength but gaining flexibility contradicts tissue changes that tend to stiffen rather than loosen; and remaining the same ignores well-documented declines. Regular resistance, endurance, and flexibility activities can help slow these changes.

As people age, muscles typically lose mass and strength (sarcopenia) and also show declines in endurance and flexibility. The loss of muscle fibers and neural activation reduces how much force the muscles can produce, while declines in mitochondrial function and capillary density lessen endurance. At the same time, connective tissues stiffen and joints may move less freely, leading to reduced flexibility. Putting these together, aging muscles most often lose flexibility and endurance.

The other descriptions don’t fit: gaining flexibility and endurance isn’t seen with aging; losing strength but gaining flexibility contradicts tissue changes that tend to stiffen rather than loosen; and remaining the same ignores well-documented declines. Regular resistance, endurance, and flexibility activities can help slow these changes.