14-Minute-Advanced-Workout Finding time for a full workout isn't always possible. The team at SkinnyMs.com has put together a heart-pounding 14-minute advanced workout that targets every major muscle group. All you need is a yoga mat, set of hand weights and an interval timer (psst, there’s an app for that). With eight moves, you're sure to be sweating right away. The X Jump is just one of the exercises in the routine. The key for maximum results is to do each of the eight exercises for the allotted time and NO RESTING in between. SkinnyMs.com gives you all the details and more videos too! We like that they have options for beginners up to hard-core gym rats.