Wall slide

- Back, head and hips against the wall; arms in a goalpost shape. - Keep the backs of your hands and forearms touching the wall. - Slide your arms up overhead as far as contact allows. - Slide back down, squeezing the shoulder blades.

- Arching the low back off the wall to fake more range. - Hands peeling off the wall. - Shrugging the shoulders up to the ears.