Popsugar Health & Fitness Arms Exercises Muscle-Up TRX Modification This Move Is Way Harder Than a Pull-Up — but 1 Trainer Has the Perfect Modification 20 July 2019 by Samantha Brodsky View On One Page Photo 2 of 2 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Here's That First Part 1 More Time Previous Next Start Slideshow Arms ExercisesTRXFitness TipsWorkoutsPopsugar Interviews