A dynamic muscle contraction causes joint movement and excursion of a body segment as the muscle contracts and shortens (concentric contraction) or lengthens under tension (eccentric contraction). The term concentric exercise refers to a form of dynamic muscle loading where tension in a muscle develops and physical shortening of the muscle occurs as an external […]

Rest is a critical element of a resistance training program and is necessary to allow time for the body to recuperate from the acute effects of exercise associated with muscle fatigue or to offset adverse responses, such as exercise induced, delayed-onset muscle soreness. Only with an appropriate balance of progressive loading and adequate rest intervals […]