If a person is holding his or her arm in a position of 90 degrees of abduction of the arm at the shoulder joint,what type of contraction is occurring?

Question

Quizplus · Accepted Answer

When a person is holding his or her arm in a position of 90 degrees of abduction of the arm at the shoulder joint, no visible movement is occurring. Therefore, the contraction can be categorized as isometric, which means the muscle is producing tension without changing length.

If a Person Is Holding His or Her Arm in a Position