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.

The following statement best describes how muscles respond to weight training:  Weight training overloads muscles, which causes the body to respond by making muscle fibers larger. Correct D However, gradually increasing the amount and type of stimulus applied to the muscle is the proper way to to increase progression in weight training.

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