Most body movements are _____ contractions.

Question

Quizplus · Accepted Answer

Most body movements involve changes in muscle length and involve isotonic contractions, where the muscle contracts and changes length to move a load. Isometric contractions, where the muscle contracts but does not change length, are important for maintaining posture and stabilizing joints, but are not typically involved in most body movements. A combination of isotonic and isometric contractions may occur during complex movements, but overall, isotonic contractions are the most common in the body. Single twitch contractions are not typically sufficient to produce movement, as they are brief and do not generate sustained force.

Most Body Movements Are _____ Contractions