Apparently, suffering under the shoulder blades could come up from a tight upper body causing terrible posture. The pectoral stretch counteracts this by stretching out the upper body muscles, blocking them from starting to be tight. This further more prevents shoulder and upper back challenges. Professional Idea: Decelerate the tempo, https://sethfkptw.blognody.com/26305226/the-smart-trick-of-how-to-build-muscle-in-the-upper-back-that-nobody-is-discussing