GENERAL HISTOLOGY

Detailed explanation-1: -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-2: -During this process, the muscle absorbs energy developed by an external load, explaining why eccentric action is also called “negative work” as opposed to concentric (shortening) contraction or “positive work” (Abbott et al., 1952).

Detailed explanation-3: -Isotonic contractions are those in which there is consistent tension as the muscle length changes. These can be either concentric (muscle shortening) or eccentric (muscle elongation). Isometric contractions are those in which the length of the muscle does not change.

Detailed explanation-4: -Isometric: A muscular contraction in which the length of the muscle does not change. isotonic: A muscular contraction in which the length of the muscle changes. eccentric: An isotonic contraction where the muscle lengthens. concentric: An isotonic contraction where the muscle shortens. 17-Jan-2023