Position therapy has been proven to be an effective treatment method for POSAS
Approximately half (56%) of OSAS patients suffer from positional OSAS (POSAS), where the supine AHI is at least twice as high as the non-supine AHI (see Definition of POSAS for references and detailed explanation).
The effectivity of POSAS treatment in remembering the trained sleep position has been tested in various studies since 1980. These treatment methods have been based on making sleeping on your back uncomfortable or impossible through the use of strapping objects to your back, called the Tennis Ball Technique (TBT). This involves, for example, strapping one or more tennis balls, squash balls, special vests, special pajamas etc. to your back, instead of using a vibrating element. The reduction of lying supine is called position therapy.
It has been repeatedly shown that this position therapy can reduce the patient’s AHI to normal levels1,2,3,4,5,6,7. Research by Permut in 2010 further stated that the effectiveness of this therapy is considered equal to that of CPAP.