To stand upright for a long period of time without moving, the muscles of the back must produce which type of contraction?
A)isotonic
B)isometric
C)isocentric
D)eccentric
E)concentric

Question

Quizplus · Accepted Answer

To stand upright without moving, the muscles of the back must produce an isometric contraction, meaning they are contracting without changing length. This type of contraction allows for the maintenance of joint stability and posture.

To Stand Upright for a Long Period of Time Without