Pull-Ups are technically "harder" than Chin-Ups in the sense most people can perform more of the latter than the former in unbroken fashion.
But to discount Chin-Ups, which use a supinated (palms facing towards you) or neutral (palms facing towards one another) grip on the bar, as a wimpier version of Pull-Ups does them a major disservice.
The late Charles Poliquin dubbed them the "Squat of the Upper Body." That certainly doesn't sound like an exercise you should be skipping out on, does it?
Alan Bishop, Director of Sports Performance for Men's Basketball at the University of Houston, tweeted that "Chin-Ups are the most underrated exercise in athletics. They are the foundational upper-body movement in our weight room because of their potential to develop true functional strength, improve structural balance, drive up core strength and pack on mass."
You'll never get too strong for Chin-Ups, either, because you can simply add weight to them via a belt.
To get the full benefit of the movement, go into a full hang at the bottom of each rep and also close the elbow at the top. Unless you're specifically working on partial range of motion variations, half reps means half results!
There are many more reasons we adore Chin-Ups, and you can read those here.
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