MUSCLE PHYSIOLOGY

Detailed explanation-1: -Skeletal muscles contract eccentrically to support the weight of the body against gravity and to absorb shock or to store elastic recoil energy in preparation for concentric (or accelerating) contractions (LaStayo et al., 2003b).

Detailed explanation-2: -First, as your muscles get bigger, their fibers are split into a greater number of sarcomeres, which increases the overall strength of the muscle. Second, the tendons get stiffer when performing eccentric but not concentric training, more efficiently transmitting the force from the muscles to the bones.

Detailed explanation-3: -During an eccentric contraction, the muscle will be challenged by an opposing force, such as a heavy weight or gravity.