Ditch sit-ups and crunches blast your abs in 10 minutes with this 4-move standing core workout
Squeeze your quads and reach your heels toward the back of the room. Make sure your shoulders are over your wrists, and that you’re looking a few inches in front of your fingers to keep your head and neck elongated. Return your right arm and left leg to the starting position, then repeat with your … Ditch sit-ups and crunches blast your abs in 10 minutes with this 4-move standing core workout