Move: Lying facedown on the fl oor, place your hands under your shoulders, tucking your toes underneath you. Push up into a plank. Keep your abdominal muscles lifted up toward your spine. If this is too diffi cult, drop your knees to the fl oor, modifying the push-up. Have your hands pointed slightly inward. Lower yourself toward the fl oor, trying to achieve about a 90 degree bend in the elbows. Exhale as you press back up. Repeat with the left leg lifted.
Repetitions: 12 on each side.
• Keep your abdominal muscles contracted. Knitting your rib cage together will help to keep the lower back from sagging.
• If your core is weak, you may need to move to a modifi ed push-up because the push-up from your toes is more difficult not only for your chest, arms and back but also for your core. If your back is not straight, your rib cage cannot stay knit together. If you feel any discomfort in your lower back, modify the push-up by dropping down to your knees.