2) Body plank: Medium
Get into the forearm position. Build body tension and pull your belly button inward. From this position, push your body as far back as possible without lifting your hips.
Stay straight from your head to your heels. Then push forward by rolling over your toes and back again.
Chisel your forearms into the floor throughout the exercise and keep your abdominal muscles squeezed at all times.
Keep the movement fluid and push your body as far forward and backward as you can.
Each repetition should only take one to two seconds.
