The cramped muscles of his legs refused to hold him up.

After what seemed hours of this, she sighed and stretched cramped muscles.

His cramped muscles ached from sitting in one position for five hours.

Bill asked, as the man climbed down, stretching cramped muscles.

She collapsed into his arms, her legs one long knot of cramped muscles.

So about the only major problem was cramped muscles; you can't just stop and step out to stretch when you're hurtling through space.

He stretched, trying to relieve cramped muscles across his back.

The entire party took the opportunity to stretch cramped muscles and to relieve other physical needs.

She got up, easing her cramped muscles, and pushed open the door.

Slowly, stretching cramped muscles, he stood up and looked around the chamber.