A method of strength training that includes initiating eccentric contraction of a muscle of interest at a starting position where the muscle of interest is maximally flexed without losing contraction force or increasing the load on a joint. The method also includes eccentrically contracting the muscle of interest through a Contractile Reversal Phase up to a J-Point. When the J-Point is observed the method includes initiating concentric contraction of the muscle of interest to return the muscle of interest to the starting position.