Concentric contraction

Definition

Concentric contraction is the shortening of a muscle during contraction, as it generates force to overcome resistance. This type of muscle action occurs when the tension developed by the muscle is greater than the external load on the muscle.

Related terms

Eccentric Contraction:

The lengthening of a muscle during its contraction, usually occurring while the muscle is lowering a load under control.

Isometric Contraction:

A type of muscular action where the muscle exerts force without changing length, such as pushing against an immovable object.

Motor Unit:

A motor neuron and all of the skeletal muscle fibers it innervates, crucial for initiating and controlling muscle contractions including concentric contractions