Table 3 Summary of standard protocol items

Postal invitation

X

Telephone screening

X

Informed consent

X

Baseline assessments

 Medical history questionnaires

X

 3D foot scanning

X

X

 Biomechanical assessment

X

 Randomisation

X

 Receive intervention

X

 CEQ

X

 MOS (intervention group only)

X

X

Outcome measures

 MOXFQ

X

X

X

X

 Muscle strength

X

X

 SF-12

X

X

X

X

 Use of cointerventions

X

X

X

X

 Incidental and planned activity questionnaire

X

X

X

X

 Perception of overall treatment effect

X

X

X

Adherence

 Footwear/orthoses

continuous (Orthotimer®)

 Exercise

continuous (PhysiTrack® app)

 Adverse events

X

X

X

X