MUSCLE PHYSIOLOGY

Detailed explanation-1: -Concentric contraction occurs when the total length of the muscle shortens as tension is produced. For example, the upward phase of a biceps curl is a concentric contraction.

Detailed explanation-2: -Think of it in terms of lifting a weight, such as in a bicep curl. Whenever you curl the dumbbell you’re performing a concentric movement and the bicep muscle shortens. Conversely, when you lower the dumbbell back down to your side, you’re performing an eccentric movement and the bicep muscle lengthens.

Detailed explanation-3: -Answer and Explanation: The type of muscle contraction occurring during bicep curls is called an isotonic muscle contraction.