His current research focuses on the epidemiology of physical activity, sedentary behaviour, and their inter-relationships with health and wellbeing. He has a special interest in examining how/whether physical activity can attenuate or even eliminate the detrimental effects of sedentary behaviour on health and psychosocial wellbeing of children and adolescents. He is interested in understanding the health and wellbeing of immigrants and identifying factors associated with health gaps in order to minimise inequalities and facilitate integration. His methodological research involves the evaluation and development of advanced statistical methods (e.g., latent trait modelling) in analysing ordinal and correlated outcomes in health sciences.