This old classic exercises is also known as the King of Upper Body Exercises, because it builds your chest, lats, triceps, core, and glutes. A favorite!
If your stiff and sit a lot, you need this exercise! It's a tough one for a lot of people, but the pay off is incredible, especially if you have upper back and neck pain.
Single Arm Reach: shoulders, scapular muscles, spinal erectors, core, glutes, lats, triceps, forearms