The next time you grab a pull-up bar, pay attention to where you place your hands because that can quickly turn a pull-up into a chin-up, and vice versa. While these two exercises look super similar, ...
BATTLE CREEK - Remember when you were in middle school gym class and you had to do 10 chin ups and you could only really do six or seven? Well, think about trying to do 4,689 chin ups in 12 hours.
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