Outcome measures for criterion validity
Videos were captured in the laboratory and home environments for the following index of tests which were derived from BASMI and EDASMI: lumbar side flexion, lumbar forward flexion, tragus-to-wall distance, cervical rotation seated, hip internal rotation, hip abduction standing, shoulder flexion and 5 times sit-to-stand (5xSTS). Standing posture was captured by the Kinect sensor. The index of tests was also measured in the laboratory by the physiotherapist. These tests were selected based on their relevance and representation in the BASMI and EDASMI and narrowed down based on the practicality of administration after trialling all functional tests in both the laboratory and home settings.