“…Timed walk tests are more sensitive to change and are known to be valid and reliable in CSM [8], however they give no information on the underlying gait parameters that have contributed to the measured speed [10]. Observational gait analysis is by far the most commonly used method of evaluating gait disturbance in CSM, however its accuracy is questionable, particularly for subtle gait changes [11,12]. A more accurate, sensitive and detailed method of evaluating gait disturbance in CSM is therefore needed to support diagnosis, measure severity, and evaluate outcome.…”