Strength Showdown: Pull-Ups Vs. Pull-Downs

What's the best vertical pulling movement? It's time to settle this argument once and for all. Let's break down the pros and cons of these two strength-training staples and see which one prevails.
If you've spent much time in a mainstream gym, you've probably noticed more people using the lat pull-down machines than doing actual pull-ups. This may cause you to think that machines are the best way to train the movement pattern of pulling down with the lats and other muscles of the middle back.
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