Why planks are better than crunches?

Related questions

1. Do Superman's work your abs?
2. Is planking everyday good?
3. Can I do lower back exercises everyday?
4. Is Climbing good for your back?
5. What is the best exercise for lower back pain?
6. Should you do back exercises everyday?
7. Do planks work?
8. Why does my back hurt every morning?
9. Why does my back stiffen up when I walk?
10. How many reps does Superman have?

Tags

1. #muscles
2. #abdominus
3. #stronger
4. #exhaust
5. #planks
6. #plank
7. #crunches
8. #obliques
9. #enough
10. #hypertrophy
11. #rectus
12. #groups
13. #definition
14. #external
15. #developed
16. #muscle