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← Human Body & HealthIn the context of aging skeletal muscle, what causes reduced force generation when oxidative stress damages the sarcoplasmic reticulum?
A)Increased calcium ATPase activity
B)Impaired calcium release mechanism✓
C)Enhanced protein synthesis rates
D)Reduced mitochondrial ATP production
💡 Explanation
Oxidative stress can damage the sarcoplasmic reticulum, impairing its ability to release calcium ions, because calcium is essential for muscle contraction. This reduces the force generated during muscle activation; therefore, impaired calcium release is the primary mechanism, rather than altered ATP production or protein synthesis.
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