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← Human Body & HealthWhy does resistance training in aging adults lead to muscle hypertrophy, despite decreased satellite cell activation?
A)Increased autophagy clears cellular debris
B)Mitochondrial fusion boosts ATP production
C)Myokine secretion enhances systemic anabolism✓
D)Reduced fibrosis improves muscle elasticity
💡 Explanation
Myokine secretion promotes muscle growth and systemic anabolic responses, counteracting age-related anabolic resistance, because myokines act as signaling molecules. Therefore, hypertrophy occurs despite reduced satellite cell activity, rather than through autophagy, mitochondrial changes, or reduced fibrosis alone.
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