I got one of those bike pedal things that sits on the floor in front of your chair. they are pretty cheap, and help keep those muscles tone. I have been making an effort to walk a bit, and do my yoga stretches. I may never have those gymnast legs that were so bulky again, but I can try to keep them from turning into butter. its work! dont let anyone kid ya. You can also get those stretch bands they sell, and sit on the couch, stick one foot in and push against the band to stretch the muscle.

Hang in there.