Combining five killer ab exercises with rope jumping will not only give your midsection a total workout, but you'll also build cardiovascular fitness at the same time.
 | Fit Life | | | Strong Abs Are More Important Than Flat Ones | | Maintaining a strong core is vital to so many aspects of your health. A strong core keeps your posture tall and straight, protects against lower back pain, keeps your balance on point, and it even helps you run faster! | | | | | | | |
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