With an effort, he forced his muscles to unclench.

He forced his muscles to relax then focused on his lungs.

Forcing my muscles to relax, I slipped out of the stall.

She found herself clenching the wheel, forcing her muscles to relax.

Suddenly the will of Chthon was on him, forcing his muscles to go limp.

He eased back against the table, forcing his muscles to relax.

But Jessica still struggled to force her muscles to flow silently and smoothly, when she should have allowed them to do so.

Gurney strained with all of his might, trying to force his muscles to move.

So much the better if he manages to force his facial muscles into a smile of greeting.

Smith forced his screaming muscles to move even faster.