Try this great core workout for runners, designed for anyone wanting a flat stomach and a strong back. You only need 5 minutes for this quick video workout that helps you strengthen all the muscles around your abdominals, obliques, and spine, leaving you feeling balanced the next time you're out for a long run.
- You can find more core strengthening exercises here
- Try our 5 best crunches to work your core
- Or put yourself to the test with our 30 day core challenge