After that it comes to the muscle and the muscle reacts.

She felt very good, her muscles reacting at their accustomed capabilities.

These impulses make the muscles react in specific ways.

Torn muscles reacted; it was as if he'd been kicked in the side with a lead boot.

You stop thinking and let your muscles react.

Astronauts' muscles react in a similar way because they are barely used.

Nerve and muscle problems cause the muscles to react in abnormal ways.

Strength - This episode covers how our muscles react when we are pushed to the limit.

He groaned softly to himself as his tense muscles reacted to the heat.

The intensity of exercise I was given depended on how my muscle reacted.