MUSCLE PHYSIOLOGY

Detailed explanation-1: -Isotonic contractions occur when the muscle changes length, producing limb motion. Concentric contractions occur when the muscle shortens. Eccentric contractions occur when the muscle lengthens.

Detailed explanation-2: -There are 2 types of isotonic contractions: concentric and eccentric. In a concentric contraction, the muscle tension rises to meet the resistance then remains stable as the muscle shortens. During eccentric contraction, the muscle lengthens as the resistance becomes greater than the force the muscle is producing.

Detailed explanation-3: -Contractions that involve shortening of the muscle are referred to as isotonic or concentric contractions. This type of contraction occurs when the force generated by the muscle is greater than the constant load acting on the muscle.

Detailed explanation-4: -Concentric contraction refers to when the force of contraction exceeds the force of resistance, which results in muscle shortening and approximation of muscle origin and insertion. Eccentric contraction occurs when the force of contraction is less than the force of resistance.