Dr Ralph Maddison
Programme Leader, Physical Activity

Ralph is a physical activity researcher having completed his PhD from the University of Auckland. He joined the Clinical Trials Research Unit in 2005 and his research interests include physical activity and behaviour change using novel, innovative, and theoretical based interventions in children, young people and special populations. He is principal investigator of several trials including (1) SWITCH – a trial to reduce screen-based sedentary behaviours in children; (2) HEART – a trial of a mHealth intervention to improve exercise capacity in people with cardiovascular disease; and FIT2QUIT – a trial to determine the effectiveness of exercise to augment smoking cessation outcomes.

Other research initiatives include physical activity measurement and digital technologies to improve physical activity. Ralph is also coordinator of the post-graduate course in clinical trial design, analysis, and management..