In an Isotonic Contraction

Question

In an isotonic contraction,
A) muscle tension exceeds the load and the muscle lifts the load.
B) tension rises and falls but the muscle length is constant.
C) the peak tension is less than the load.
D) many twitches always fuse into one.
E) postural muscles stabilize the vertebrae.

Accepted Answer

In an isotonic contraction, the muscle tension exceeds the load, allowing the muscle to lift the load. This is characteristic of most types of physical activities where movement of a load is involved.