The following definitions are informational and Represent characteristics of open- chain exercises and closed-chain exercises . they are presented for understanding and for the discussion of open-chain exercises and closed-chain exercises described throughout this Blog.it is also referred to as kinetic exercise. Kinetic Exercise Refers to body kinetic which is Representing the Kinematic changes occurring in rhythm in the body. Open-Chain Exercises Open-chain exercises involve motions in which the distal segment (hand or foot/the joint far from the joint where the movement is occurring) is free to move in space, without necessarily causing simultaneous motions at adjacent joints. Limb movement only occurs distal to the moving joint, and muscle activation occurs in the muscles that cross the moving joint. For example, during knee flexion in an open-chain exercise. , the action of the hamstrings is independent of recruitment of other hip or...