After using the stairmaster, be sure to stretch arms and legs to reduce soreness. Relax muscles with a good stretch after a step machine workout with tips from a group fitness instructor in this free video on exercise equipment. Expert: Andrea Zavislak Bio: Andrea Zavislak has been a fitness instructor for more than three years. She teaches at various clubs in the Phoenix, Ariz. area, including YMCA, LA Fitness, 24 Hour Fitness, and a sports club. Filmmaker:...