Social Power and the Movement System: Why and How Physical Therapists Might Influence the Upstream Currents of Health.

Social determinants of health are an emerging focus within physical therapist practice, research, education, and advocacy as a necessary condition for movement system health disparities. Fundamental cause theory suggests that the sociopolitical environment sets the context for individuals' socioeconomic positioning, which determines the availability of resources that are necessary for groups and individuals to maintain health. These resources include knowledge, money, power, prestige, and social connections. Yet, it is the hierarchical organization of society that dictates both the availability of socioeconomic resources and the ability of patients and clients to use those resources to promote and maintain movement system health. The presence of social hierarchies indicates the need for physical therapists to consider social power as a key determinant of movement system health. Consideration of social power in clinical initiatives and advocacy agendas would provide a framework for physical therapists to begin the dynamic, and often, adversarial process of breaking down social hierarchies and redistributing social power, rather than simply redistributing socioeconomic resources, in pursuit of societal transformation and community-building. This Perspective discusses social power as the fundamental driver of movement system health inequalities and explores the effects of social power on exposure, susceptibility, experience, and recovery related to movement system pathology-including the influence of social power on the ability of people to acquire socioeconomic resources and convert them to health-relevant resources. This perspective concludes with recommendations for physical therapists to identify and dismantle inequalities in social power through structural competency.