Starting my own daily plank routine, goal is to get to a 10 minute plank. Doing 5 sets. 

1st set - 1 minute 15 seconds 
2nd set - 1 minute
3rd set - 1 minute
4th set - 1 minute
5th set - 1 minute


Plank started to get really hard around Set 3, shaking on Set 5

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