The muscular chains consist of muscles and aponeurosis acting in synergy to ensure co-ordination of movement . Throughout the entire swing motion, there are chains, some of which are in a relaxed state while others are contracting throughout the articular tract; the relaxed chains contract on other articular tracts during other stages of the movement.
The swing, is not a back and forth movement, but a continuous one, which starts with the first movement of the club and terminates after the follow through. So it is like a back and forth motion, but does not follow the same sequence.