Dr. Sally Fenton’s research aims to validate objective measures of physical activity and sedentary behavior (accelerometers and activPALs), subsequently applying them to explore the health consequences and determinants of these behaviours in different populations. To date, she has conducted a series of studies aligned with this theme, among children, older adults, and patient groups – with a recent focus on people living with Rheumatoid Arthritis. Findings from this research are applied to inform the development, implementation and evaluation of theoretically-informed interventions to encourage physical activity and sedentary behavior change. Currently, Dr. Fenton is involved in several projects that aim to deliver motivation-theory grounded interventions to promote physical activity and reduce sedentary behavior among patient populations, including patients awaiting liver transplant, and individuals living with Arthritis.