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4 Abs Workouts You Can Do at Home in Just 5 Minutes

4 Abs Workouts You Can Do at Home in Just 5 Minutes

RunnersWorld - By Runner's World Editors and Jeremy Shore

Add any of these four core circuits into your run training for power, stability, and endurance. To run faster, longer, and stronger, you need much more than strong legs; you need a bulletproof core as well. As you strengthen the muscles in your abdominals, lower back, and glutes, you’ll develop more …

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