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Plank Workout - 30 day challenge
5:28
30 Day plank challenge | Day 3
6:30
4 MIN Plank Challenge to GET 6 Pack Abs (4 WEEKS RESULTS)
5:52
30 Day plank challenge | Day 30
4:24
How to Get a Flat Stomach in a Month at Home - Abs Workout Planking
5:19
30 Day plank challenge | Day 4
4:50
How to Plank Properly for Beginners - Step By Step Tutorial
5:34
30 Day plank challenge | Day 6
