Question

What needs to happen for muscles to grow and repair?

Answer 1

The body repairs damaged fibers by fusing them, which increases the mass and size of the muscles. Certain hormones, including testosterone, human growth hormone, and insulin growth factor, also play a role in muscle growth and repair.

Answer 2

Answer:

The three major ones are;

1. Muscle tension
2. metabolic stress
3. muscle damage.

Explanation: