Calf muscles generally need more repetitions to respond to strength and endurance improvements and 8-12 repetitions may not provide the necessary improvements.

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Calf muscles are often more resistant to fatigue and require higher repetitions (often above 12) for strength and endurance improvements due to their daily use in walking and standing, which makes them accustomed to continuous, low-intensity work.

Calf Muscles Generally Need More Repetitions to Respond to Strength