The 60-Second Situp Challenge

Do as many situps as you can in one minute.



Read more at Men's Health: http://www.menshealth.com/deltafit/exercise-you-shouldnt-avoid?cm_mmc=DailyDoseNL-_-1199854-_-02132013-_-60SecSitup-image#ixzz2KpNnuakG

http://www.menshealth.com/deltafit/exercise-you-shouldnt-avoid?cm_mmc=DailyDoseNL-_-1199854-_-02132013-_-60SecSitup-image