The exercise gets its name because, wait for it...the jump rope needs to pass beneath your feet twice per rep. Its math, Fam: 1 dub = 1 jump + 2 rope rotations. Got it? Okay cool, let's continue.
What do AMRAPs, Fitaid, and No-Bulls have in common? Welp, they’ve all been popularized by the sport of functional fitness (also known as CrossFit). And there’s one more biggie to add to the list: ...
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