Here is MP Coach Justin Nejbauer demonstrating How to Use Your Thumbs with Pull-Ups.

Switch around your thumb positioning to really target more of those back muscles, specifically in the lats.

For more tips and exercises like this, check out our MP45 Workout Program. We’ll tell you step-by-step what to do for every workout for a riveting 45 Day Challenge that will test your character and your grit, and get you in the best shape of your life.