A muscle contraction against a constant resistance, as in lifting a weight.

a contraction of a muscle that produces movement at a joint

Muscular contraction that overcomes resistance, resulting in a change in the length of the muscle.

A dynamic muscular contraction used in common weight-training exercises where the muscle moves the limb through a range of motion while contracted. Normally called dynamic training or contractions.

A concentric or eccentric muscular contaction that results in movement of a joint or body part, as in lifting a weight.