Walking is an example of a(n) __________ contraction.Group of answer choicesisotonicisometrictwitchtetanic

Walking is an example of an isotonic contraction.

Explanation:

1. Isotonic Contraction: This type of contraction occurs when muscle tension remains constant as the muscle changes length, allowing movement (like walking).

2. Isometric Contraction: In this type, the muscle generates force without changing length, which does not allow for movement.

3. Twitch Contraction: This refers to a single brief contraction, which is not representative of the continuous activity of walking.

4. Tetanic Contraction: This is a sustained muscle contraction resulting from rapidly repeated stimuli, not applicable to walking.

In summary, since walking involves movement with a change in muscle length while maintaining constant tension, isotonic contraction is the correct choice.