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This 30-Day Plank Challenge Will Strengthen Your Entire Core
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The 2016 Ultimate Plank Challenge: A Plank A Day In May
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:max_bytes(200000):strip_icc()/800_day-4-extended-side-plank-43481fe91a14455f97c17a7a42751ddd.jpg "This 30-Day Plank Challenge Will Strengthen Your Entire Core")
This 30-Day Plank Challenge Will Strengthen Your Entire Core
INTENSE Total Plank Workout - 8 minutes for toned abs and a strong core! - YouTube
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