_______ refer to muscle contractions that produce a shortening muscle with a constant contraction strength at a given load.
A)Treppe contractions
B)Isotonic contractions
C)Twitch contractions
D)Isometric contractions

Question

Quizplus · Accepted Answer

Isotonic contractions are characterized by muscle contractions that produce a shortening muscle with a constant contraction strength at a given load. This means that the muscle maintains the same level of tension throughout the contraction, resulting in a visible movement of the load (e.g. lifting a weight). In contrast, isometric contractions do not produce any movement of the load as the muscle maintains the same length while applying force against an immovable object. Twitch contractions refer to brief and rapid contractions that occur in response to a single stimulus, while treppe contractions refer to the phenomenon where the force of contraction of a muscle increases in response to repeated stimulation.

_______ Refer to Muscle Contractions That Produce a Shortening Muscle