By Prof. Eduardo Amaya / Special thanks to Raúl Laplacette for his invaluable cooperation The swing is defined as a rocking movement between the shoulders and hips. This bodily action allows for a greater impact or impulse on the ball with the least energy expenditure. There must be muscular coordination and the use of strong 

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By Prf. Eduardo Amaya   Excessive tension restricts and diminishes the power of the hit. While force is a product of muscle development and flexible capabilities, power is generated within the muscles through contraction and release; thus, it is more closely related to coordination than to strength. Therefore, although it is the speed of the 

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