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Rehabilitation research: who is participating?

Evidenced-based practice (EBP) is critical to advancing both the physiotherapy profession and physiotherapy outcomes.1 EBP is facilitated by the results of well-controlled studies, the generalizability of which depends largely on wide recruitment and participation of people with the condition of interest. Recruitment of participants is acknowledged to be the most difficult aspect of research, and often determines the success or failure of a randomized controlled trial (RCT).2 Despite its critical importance, however, very little is known about participation in rehabilitation research. A deeper understanding of who participates in physiotherapy research and of the factors that influence willingness to participate is critical both to achieving insight into how the results of a study apply to the general patient population and to designing future studies to maximize recruitment of appropriate participants.