What is the impact of obtaining medical clearance to participate in a randomised controlled trial examining a physical activity intervention on the socio-demographic and risk factor profiles of included participants?

- Duncan, Mitch J.; Rosenkranz, Richard R.; Kolt, Gregory S.; Vandelanotte, Corneel; Caperchione, Cristina M.; Rebar, Amanda L.; Maeder, Anthony J.; Tague, Rhys; Savage, Trevor N.; van Itallie, Anetta; Mummery, W. Kerry