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:

To solve this, we analyze each option:

• Option A: Cardiac muscles are in the heart, and weight training doesn't primarily target them.
• Option B: Smooth muscles are in organs like the digestive tract, not targeted by weight training.
• Option C: Involuntary muscles (like cardiac and smooth) are not the focus of weight training.
• Option D: Skeletal muscles are attached to bones and are voluntary; weight training (like lifting weights) directly works on skeletal muscles to build strength and mass.

Answer:

D. skeletal muscles