'I am fatigued of being stigmatized': On the need to investigate stigma-related barriers to physical activity

Understanding what predicts behavior change is a hot topic in health psychology, especially with regard to physical activity. While existing research has revealed key factors of physical activity (e.g., reasoned cognitions, automatic processes), it fails to accurately identify those that are specific to the most inactive populations (e.g., older adults, obese individuals, women, people living with chronic disease). In this commentary, we propose to articulate current approaches of health behavior change with the social psychology of stereotypes, based on the observation that inactive groups are often targeted by negative stereotypes. This articulation may allow to better identify the barriers to physical activity that are specific to individuals from the most inactive groups. More particularly, we propose that low self-control resources, indexed by perceived fatigue, and negative self-perceptions may be key factors of physical inactivity in these individuals. This proposition could in turn help to explain why some behavioral change techniques that are efficient in healthy or young adults are inefficient in other individuals.