I did the stairmill for 20 min straight once. Now I workout a lot. Doing crossfit style to plyometrics, lifting.that kicked my ass! - Tap the pin if you love super heroes too! you will LOVE these super hero fitness shirts!
Try this workout today on the stairmaster…to build a nice round butt plus burn a TON of cals! I promise you that this will transform your body - firming up your legs and backside for GOOD while melting off fat!