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Human Body & Health

During resistance training, why does eccentric contraction induce greater muscle hypertrophy compared to concentric contraction at the same load?

A)Reduced motor unit recruitment occurs
B)Increased metabolic waste limits growth
C)Decreased neural drive inhibits adaptation
D)Greater mechanical disruption initiates remodeling

💡 Explanation

Eccentric contractions cause greater muscle damage at the sarcomere level because they resist lengthening under load, thereby inducing more significant mechanical disruption. This triggers a more robust repair and remodeling response, therefore promoting hypertrophy. Rather than limited activation, the process amplifies signaling cascades.

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