No, not sit-ups or crunches — this is the one low-impact exercise you should try to strengthen your core instead

[admin]

You don't need sit-ups or crunches to strengthen your core. Inchworm walkouts and walk-ins can be done using your body weight or with kettlebells and are low impact.

No, not sit-ups or crunches — this is the one low-impact exercise you should try to strengthen your core instead : Read more