Today’s workout is Push up Row Down Chain While regular push-ups with your legs straight are challenging enough, if you really want to get stronger and build muscle in your upper back, arms, and core, this variation is a must-do. Grab a pair of light- to medium-weight dumbbells, and add this push-up to your routine. Dumbbell Push-Up Row Down Chain 1. Begin balancing in plank position, shoulders stacked over the wrists, with a dumbbell on the floor in each hand. 2. Bend the elbows behind you, and lower the torso into a push-up. Press back up to plank. 3. Do ten rows on the right side, then on the left.…