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5:19
30 Day plank challenge | Day 4
5:52
30 Day plank challenge | Day 30
6:30
4 MIN Plank Challenge to GET 6 Pack Abs (4 WEEKS RESULTS)
1:52
30 Day Plank Challenge
5:14
30 Day plank challenge | Day 23
12:35
I Did a Plank for 30 Days Straight! (Before and After Results)
5:34
30 Day plank challenge | Day 6
5:13
30 Day plank challenge | Day 21
