An investigator initiated validation study comparing ViMove with standardized outcome measures of function and disability.

Subjective and objective measures of low back pain and movement will be utilised in patients with chronic low back pain. 2 ViMove sensors are placed on the patient's back by the treating physiotherapist. Physio's will receive a training session (at an early time) to ensure proper sensor placement and adherence to protocols. 1 sensor is in-line with the posterior superior iliac spine, and the other is on the thoracic spine. Both are placed according to a protocol+guide. Initial assessment session: Whilst wearing ViMove sensors in clinic, patients will perform a set of back extension, flexion, and lateral flexion movements. This set will be repeated 5 times. This assessment is referred to as a ViMove live low back assessment and takes approximately 10-15 minutes total. Participants do not need to do anything with the sensors, as they are attached using disposable adhesives. Participants will also be asked to complete a questionnaire package which contains all subjective measures. Once the in-clinic assessments and questionnaires are completed, participants will leave the clinic whilst still wearing the sensors and will go about their day. Sensors will monitor the participants low back movements, in what is referred to as ViMove low back monitoring. Sensors will be worn for approximately 6-10 hours outside of the clinic. Sensors can be returned directly to the clinic, or can be mailed back, This will be outlined to the participant This same procedure (live assessment, questionnaires, monitoring) will be repeated at a follow-up date 8 weeks later. Patients will not receive any interventions as part of this trial, and will be treated according to the management plan of their treating physician.