Up-down planks (also called walking planks or commando planks) are an exercise I dread every time I come across them in a ...
You may like I hate up-down planks — so I did 20 reps a day for 2 weeks anyway and this is what happened to my core I did 50 dumbbell chest presses every day for 2 weeks — here's what happened ...
This move torches your core, quads, and glutes.
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