Step-ups are another perfect example. Every time you walk up a flight of stairs, hike up a hill, step up into an SUV, or even get up from kneeling, you’re doing a version of a step-up. Step-ups are ...
If you've ever carried a suitcase or bags of groceries up a few flights of stairs, you know how intense it can be. Your heart is pumping, your legs and butt are burning, and your arms are toast by the ...
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