The Sleeper Stretch has been one of the most commonly prescribed interventions for athletes presenting with Glenohumeral Internal Rotation Deficit (GIRD) of the shoulder.
But is this the most effective way to apply strain to the posterior capsule?
Using a cadaver-based study, Izumi et al examined and measured posterior capsule strain of 8 different shoulder positions.
What you need to know:
More information pertaining to this study's methodology:
Glenohumeral positions that significantly stretched the posterior capsule:
It should be noted that joint capsule strain seen in aged cadavers may not be similar to that seen in younger adults. In fact, strain rates in younger populations may indeed be larger.