Eccentric Training Builds Muscle Mass Best

Muscle can develop more force contracting eccentrically ( contraction during lengthening ) than concentrically ( contraction during shortening ) . Muscle tension and the time undertension are the most importants factor triggering muscle hypertrophy. Since eccentric contractions ( negatives ) creates the greatest muscle tension, it seems reasonable to include them in training programs designed to build muscle mass. A Norwegian study found that eccentric biceps training for 12 weeks improved concentric strength about the same as concentric training.however eccentric training increased eccentric strength and muscle mass the most. This was an important study for bodybuilders. Include negatives in your program to maximize gains in muscle mass. ( Medicine Science Sports Exercise, 38:1770-1781, 2006 )