Targets: Shoulders, arms, chest, abs, butt, and legs
- Stand with feet hip-width apart, a dumbbell in each hand. Bend elbows 90 degrees so that forearms are parallel to floor, elbows by sides, palms in.
- Lunge forward with right leg as you bring left hand up to shoulder level in front of you and drive right arm behind you (as you do when running).
- Hop up and switch arms and legs to lunge forward with left leg.
- Do 16 reps total, alternating sides.