stretch one's legs

This is an opportunity not only to stretch one’s legs, but to stretch one’s soul also.

I actually prefer a narrow body plane, and the short layover in Iceland offers an opportunity to get out of a coach seat and stretch one's legs.

Our boat was a very comfortable one, and it was quite a relief after being cramped up in the chair to be able to stretch one’s legs and to indulge in a lounge or sometimes to take a walk along the bank of the river.

It is much pleasanter to be silent and to stretch one's legs without caring for a neighbour who will be gone in a few moments.

One cannot stretch one's legs as one sits writing at it, and if one rises suddenly it knocks bad language into one's knees and out of one's mouth.