A concentric contraction is described as

A) action potential frequency is high enough that no relaxation of muscle fibers occurs.
B) a muscle produces constant tension during contraction.
C) a muscle produces an increasing tension during contraction.
D) a muscle produces increasing tension as it shortens.
E) a muscle produces tension, but the length of the muscle is increasing.

Concentric Contraction

Muscle contraction where muscle fibers shorten while generating force, typically occurring when a muscle is actively producing movement.

Muscle Tension

Describes the state of partial contraction in a muscle, even when it is not actively being used, helping to maintain posture and readiness for action.

Contraction

The process of muscle fibers shortening in response to stimulation, resulting in movement or tension in the muscle.