As an individual ages, why does the strength-generating capacity of skeletal muscle decline more rapidly than overall muscle mass loss?

💡 Explanation

Skeletal muscle declines with age due to sarcopenia, but strength loss exceeds muscle mass decline because oxidative stress increases within myofibers, damaging contractile proteins and impairing their function. Therefore, muscle function is diminished, rather than mass alone, because oxidative damage preferentially impacts the force-generating machinery.

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