The objective of our study is to develop a technique for precise head and shoulders posture measurement or, in other words, for measuring the native position of the head and shoulders in 3D space with accuracy to 1° in each direction. Until now, no cheap, widely applicable technique was presented.
Described measurement system and technique could have important applications, as there are many neurological disorders that affect the postural alignment position of the head and shoulders. In many cases, the abnormalities of the head position can be small and difficult to observe. Although an accurate method could contribute to the diagnosis of vestibular disorders and some other disorders, this issue has not been systematically studied. This paper describes improvements of measurement system based on experiences of clinical measurements and offers a new statistical method for evaluation of measured data.