Targets shoulders, chest, arms. Do 15 to 20 reps.

-Push-Ups: Get into a modified push-up position with your knees on the floor and your abs engaged. Bend your elbows 90 degrees bringing your chest just above the floor. Now, push back up. Do 15 to 20 reps. Keep your hips lifted, your shoulders down, and your head in line with your spine. Keep your abs contracted throughout the exercise. This exercise targets your shoulders, abs, chest, and arms. If this feels too easy, try a full push-up, lifting your knees up and pressing your toes into the floor. For a bigger challenge, try walking push-ups. Move your right hand a few inches to the right then follow with your left hand, going back and forth for a total of 12 reps.