Measurement of camptocormia trunk flexion using a dual-sensor measurement setup

Assessing the flexion of the trunk of patients with camptocormia is a key factor in developing therapies for camptocormia and monitoring their success. Currently used methods to measure this camptocormia angle are based on photographs or short videos. Both methods are not able to take the ability of patients into account to compensate their symptoms for short amounts of time. We propose a simple two sensor measurement setup based on two accelerometers to measure the angle in accordance with the established perpendicular measurement method [1]. We show that our method yields an average deviation of -1.74° with a maximum deviation of +2° and -6° compared to visual assessment with a motion capturing system.