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.

○ a
○ b
○ c
○ d

Explanation:

Cardiac muscles are in the heart, smooth muscles are involuntary (e.g., in organs), involuntary muscles include cardiac and smooth. Weight training targets skeletal muscles (attached to bones, voluntary, used in movement). So weight training affects skeletal muscles most.

Answer:

D. skeletal muscles