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Healthy In The Hills - 30 Day Challenge - Plank Exercise! We want everyone to challenge yourself and teammates when doing the 30 Day Planks. Share a photo or video of you
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MyNavy HR - In just four short months Sailors will need to master the plank for the PRT. Earlier today we shared tips on how to plank, now let's tackle it together
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:max_bytes(200000):strip_icc()/The-Ultimate-30-Day-Plank-Challenge-for-Your-Strongest-Core-Ever--0b698f248c434591b4e592703c01fb67.jpeg "This 30-Day Plank Challenge Will Strengthen Your Entire Core")
This 30-Day Plank Challenge Will Strengthen Your Entire Core
