(PART 2) Ok, so we saw the difference between my right and left arms in the PART 1 video... Commonly what would cause this inability to raise that arm high when on all 4's like this would be a tight Latissimus Dorsi muscle (lat)...This could be tight for a number of reasons that we won't get into here, but videos 1️⃣ & 2️⃣ show a great way of solving that problem so we can get back to doing the original exercise and start solving that neck / upper trap pain. 🔥Step 1: get a heavy exercise band or a cable with a lot of weight on it, 🔥Step 2: bend over and stretch the arm as shown in these videos, 🔥Step 3: with your back muscles, pull your shoulder blade back and maintain that contraction for 10 seconds, 🔥Step 4: grab your upper arm from underneath, slowly relax your arm, let the cable or band pull it, all while rotating your arm out with your opposite hand (rotating it so your palm faces the ceiling). Watch these videos a few times to get a better idea! Check out PART 3 to see what changed!