Before we understand training the eccentrics, lets’ understand the types of contractions.
Concentric contractions are those which cause the muscle to shorten as it contracts.
Eccentric contractions are the opposite of concentric and occur when the muscle lengthens as it contracts.
Isometric contractions occur when there is no change in the length of the contracting muscle.
In the traditional sense of ‘Heavy Weight/Low Rep Training’ there is constant T.U.T. (Time Under Tension) - meaning that muscles are maintaining contractual force, concentric, eccentric and isometric throughout the set. Contrary to traditional lifting, Kettlebell training avoids the eccentric portion of the lift and has continual points of total relaxation, releasing T.U.T., and subsequently providing momentary systemic rest upon every lift/rep.