Physiotherapy treatment will be in line with current clinical guidelines for the management of knee OA. (McAlindon et al., 2014). A workshop led by the principal investigator will be held at each recruitment site prior to study commencement where physiotherapists will receive an update on clinical guidelines and current best evidence on management of knee OA. This will standardise treatment to some degree, but intervention will be individualised at the discretion of the treating physiotherapist.