Exercises for Back Activation

Hi Paul, I started doing the chest activator exercise that you posted on the intagram recently ( before and between the sets) and had a very great improvement on my mind-muscle connection and the chest pump. Thank you !! I would like to know what exercises you indicate to do as an activator for upperback and lats.

I found this really useful

I have a lat pull-in movement on my Instagram. I’m pretty sure t-nation reposted it.