Open Chain Exercises (OKC) are exercises performed when the hand or foot is free to move. The opposite of OKC are closed kinetic chain exercises (CKC). Both are effective for reinforcement and rehabilitation goals. Closed-chain exercises tend to offer more “functional” athletic benefits because of their ability to recruit more muscle groups and require additional skeletal stabilization.
The single-joint versions of these exercises are usually unsupported, with movement occurring at the hinge joints (elbow or knee). If a weight is applied, it is often applied on the distal part of the limb. Open-chain exercises are expected to be beneficial in rehabilitation settings because they can be easily manipulated to selectively target specific muscles, or specific heads of certain muscles, more effectively than their closed-chain counterparts, at different stages of the process. contraction.