Try this 7 day plank challenge & tell us what you think?
Step 1- Lie face down with both your forearms and palms flat on the floor and your elbows directly beneath your shoulders. Keep your feet flexed with the bottoms of your toes on the floor.
Step 2- Rise up on your toes so that only your forearms and toes touch the floor -- your body should be a few inches off the floor in a straight line from shoulders to feet.
Step 3- Pull your belly button toward your spine and tighten your buttocks. Look at the floor to keep your head in neutral position and breathe normally.
- For more intensity, lift one leg, hold for at least 10 seconds and switch to the other leg.
- For less intensity, keep your knees on the floor.