Question

weight training has the biggest effect on a. cardiac muscles b. smooth muscles c. involuntary muscles d. skeletal muscles please select the best answer from the choices provided.

Explanation:

Weight training involves voluntary muscle - contraction exercises. Skeletal muscles are voluntary muscles that are directly targeted and strengthened during weight training. Cardiac muscles are in the heart and not the main focus of weight training. Smooth muscles are involuntary and found in organs like the digestive tract, not affected by weight training in the same way. Involuntary muscles include cardiac and smooth muscles and are not the primary target of weight training.

Answer:

D. skeletal muscles