Question

which statement best describes how muscles respond to weight training? a. weight training stretches the muscles limits and makes the muscles longer. b. weight training pushes the muscles abilities, making the muscles gain endurance. c. weight training stimulates the muscles and causes the muscle fibers to sit closer together. d. weight training overloads muscles, which causes the body to respond by making muscle fibers larger. please select the best answer from the choices provided.

Explanation:

Weight training overloads muscles, triggering muscle - fiber hypertrophy. The body adapts to the stress by increasing the size of muscle fibers. Option A is incorrect as weight training doesn't mainly make muscles longer. Option B focuses on endurance rather than the main effect of muscle - fiber size increase. Option C about muscle fibers sitting closer together is not the main response.

Answer:

D. Weight training overloads muscles, which causes the body to respond by making muscle fibers larger.