Carolina’s volleyball team ends every practice with a wall sit challenge where they have to hold a seated position against the wall for as long as possible. What is TRUE about this activity?

In a wall sit, the muscles contract to hold the body in one position, but the joints do not move and the muscles do not noticeably change length. That makes it an isometric exercise. An isotonic exercise involves movement, while an isokinetic exercise uses movement at a constant speed.

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