Trying to Lift a 500-Pound Weight Would Result in What

Question

Trying to lift a 500-pound weight would result in what type of muscle contraction?
A) isometric
B) twitch
C) isotonic
D) both A and B

Accepted Answer

Isometric muscle contraction occurs when the muscle contracts but does not change length, meaning there is no movement of the weight. Trying to lift a 500-pound weight would likely result in an isometric contraction because the weight is too heavy to be lifted. Twitch contraction occurs in response to a single electrical stimulus and is not a relevant type of contraction in this scenario. Isotonic contraction involves the muscle changing length as it contracts, which would not likely occur in the case of trying to lift a weight that is too heavy.