The Type of Contraction in Which the Muscle Fibers Do

Question

The type of contraction in which the muscle fibers do not shorten is called
A) tetany.
B) treppe.
C) concentric.
D) isotonic.
E) isometric.

Accepted Answer

Isometric contractions occur when the muscle generates force without changing its length. The muscle fiber tension increases, but the muscle does not shorten or lengthen. Tetany refers to a sustained muscle contraction, treppe is a phenomenon in which the force of muscle contraction increases in response to repeated stimulation, concentric contractions involve shortening of the muscle fibers, and isotonic contractions involve movement and shortening of the muscle fibers.