Prof Timperio's research is focused on understanding the range of influences on physical activity, sedentary behaviour and eating behaviours, particularly among children and adolescents, and over critical life transition periods (e.g., childhood to adolescence, adolescence to young adulthood). She is involved in several longitudinal studies that examine individual, social and environmental influences on behaviour. A major focus of her recent work has been understanding and measuring neighbourhood food and physical activity environments. Prof Timperio's other research interests include the measurement of physical activity and sedentary behaviour and evaluation of health promotion and public health interventions.