Most fitness facilities have a variety of weight training machines which target and isolate specific muscles.

Understanding the direct mechanisms of the face is needed in order to determine the dysfunction of specific muscles.

Using advanced prosthetic limbs, for example, requires control of specific muscles; patients without that capacity must use simpler models.

These nerves lead to the specific muscles they control.

Researchers think the brain, particularly in the young, is learning about what nerves control what specific muscles when asleep.

The toxin is targeted to a specific muscle and generally does not travel very far.

It's different from all the other pieces in what is physically required - it uses a set of very specific muscles.

"You are training specific muscles to hold very still."

The impairment in force production is muscle specific.

This chart shows the specific muscles worked by the different exercises.