Incorporating the Squat Exercise in the Rehabilitation of the Reconstructed Anterior Cruciate ligament Knee

T HE KINETIC CHAIN OF THE BODY The concept of the Kinetic Chain has been referred to by mechanical engineers as a link system. This link system has been described . as a series of overlapping. rigid segments which are connected by pin joints. If both ends of this system are fIxed to an immovable frame. translations at both the proximal and/or distal ends are impossible. Movement of one joint in this system allows for pre­ dictable movement at all other joints included in the same system. However, this type of closed link system does not exist in the extremities of the human body dUring nonnal function.