By Paul John Scott, DETAILS
1. Contrary to popular belief, sit-ups don't protect your back. Studies show that building static back strength is the key to preventing injury.
2. Sit-ups and crunches actually compress your spine more than is allowed by occupational-safety standards.
3. You risk even more damage if you do the move of the moment: a sit-up on a physio ball. Hyperextending your back below its midline is a no-no.
4. Flexing forward at the waist is also a bad idea. Your abs were designed to be a rigid hoop to support your spine.
5. Sit-ups are a far less effective abs exercise than planks, which work your six-pack and obliques up to 25 percent more efficiently than sit-ups or crunches.
Read more: How To Get Six-Pack Abs (Without A Single Sit-Up)
More from DETAILS:
Shia LeBeouf: Hollywood's Last Bad Boy
- The 14 Healthiest Snack Foods
- 32 Stunning Male Models of the Moment
- 5 Foods That Will Make You Look Younger
Photo: Eric Ray Davidson