Validation of a comprehensive measure of clinic-based adherence for physiotherapy patients.

OBJECTIVE: To validate the Rehabilitation Adherence Measure for Athletic Training (RAdMAT) for use in clinic-based physiotherapy.

DESIGN AND PROCEDURE: Single group, prospective study conducted over the course of the participants' rehabilitation. Clinic-based adherence was measured by participant attendance at physiotherapy appointments, the 16-item RAdMAT (three subscales) and the three-item SIRAS questionnaire. The SIRAS was evaluated after each physiotherapy treatment and the RAdMAT either at the completion of their treatment or at end of the eight week study period. Both questionnaires were completed by the physiotherapist.

PARTICIPANTS: 108 participants with soft tissue injuries of the shoulder.

RESULTS: The percentage of adherence for the three different adherence measures was high ranging from 89% to 95%. Large significant correlations were found between the SIRAS and the RAdMAT total score, and the RAdMAT factor 1; and amongst the RAdMAT total and its three subscales. Medium strength correlations existed between the SIRAS and the other two RAdMAT subscales. Small significant correlations occurred between percentage of attendance, and RAdMAT factors 2 and 3.

CONCLUSION: The strength of the correlations between the RAdMAT and the SIRAS provide evidence for the RAdMAT and its three subscales comprising a valid and comprehensive assessment tool for measuring patient adherence to clinic-based physiotherapy. Registered with the Australian New Zealand Clinical Trials Registry (ACTRN12612000611820).