muscular tonus
muscle tone

She was always in the health club working on muscle tone.

I don't see nothing wrong with that, but he needs some muscle tone.

At other times, the whole body may lose muscle tone, and the person can suddenly fall.

The scientists expected to see little change in the muscle tone of the control group.

"I didn't see much of a difference in muscle tone."

In addition, the loss of muscle tone will affect your looks.

The woman may lose muscle tone and become short of breath.

My sister used to do both and her muscle tone was really quite amazing.

Do physical activities that move your legs, which will improve muscle tone.

After four or five days to get the muscle tone back up, you can go under again.