Watch this video for a demonstration of how to do a posterior back fly (or the rear delt) exercise.
Just updated your iPhone to iOS 18? You'll find a ton of hot new features for some of your most-used Apple apps. Dive in and see for yourself:
Watch this video for a demonstration of how to do a posterior back fly (or the rear delt) exercise.
Just updated your iPhone to iOS 18? You'll find a ton of hot new features for some of your most-used Apple apps. Dive in and see for yourself:
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