Wake up! Winter's officially over, and your hibernating routine is so last season. The arrival of spring's skin-baring clothes can be terrifying if you, like us, haven't exactly been following your get-fit resolution. Fear not, friends: We teamed up with one of our favorite trainers, Frank Henderson (yes, he trains R29!), to give us a quick and simple workout routine that will whip legs, abs, and glutes into shape.
According to Henderson, getting a strong core and lower body is about more than simply getting washboard abs and a perky butt. "All of the muscles from your knees to your armpits on the front, back and sides of the body form your core," says Henderson. "A strong core lowers risk of injury to your knees, hips, and lower back." For each of the following six moves, Henderson recommends working up to two or three sets of 15 reps per move — but, as you get stronger, you may find that you can increase your number of reps to 20 or 25 per set.
Check out our painless routine for getting strong, sexy, and seriously fit. Who wears short shorts? You will — trust.