Assessment and retraining of posture is a traditionally integral physiotherapeutic intervention in the treatment of back pain with the benefit of postural correction exercises for the relief of back pain being well documented. Evaluation of posture by physiotherapists is based on subjective observations and patients’ self report of which activities lead to increased pain. Improvements from treatment may be detected subjectively, but it is currently difficult to compare patients or to quantify improvements. Further, difficulties arise when trying to compare measures taken by different physiotherapists as standardised objective assessment tools may not have been used. This lack of objective measures for assessing posture does not agree with standards set out by governing bodies in the United Kingdom, which stipulate that treatments should be based on objective markers and evidence-based practice. Previous studies with physiotherapists concluded that there was a need for an assessment system to provide objective, accurate results, displayed quantitatively and visually for evidence based practice. It is hoped that the MIDAS system could be implemented as a means of quantifying posture in physiotherapy departments in the near future.