LIFTING WEIGHTS = CONCENTRIC TRAINING
LOWERING WEIGHTS = ECCENTRIC TRAINING
“Basically, if you want to lift quickly (concentrically), you must use a light weight. If you want to lift a heavy weight (concentrically), you must move slowly. If you want to lower a heavy weight (eccentrically), you must move quickly. If you want to lower slowly (eccentrically), you must only use a light weight.”