Background: Posterior shoulder tightness has been proposed to contribute to or cause a myriad of shoulder conditions. The tightness of the posteroinferior capsule and the teres minor and infraspinatus muscles of the posterior cuff has been hypothesized to cause osteokinematic [e. g. https://safeersappliancers.shop/product-category/neff-n50-d65ihm1s0b-chimney-cooker-hood-black/