Despite the proliferation of theory-based behavior-change programs to promote physical activity, obesity and diabetes rates continue to rise. Given the notable ineffective interventions, it is important to examine why these efforts have been largely unsuccessful and to consider potential alternatives. The purpose of this article is to consider the role of values in understanding decisions about physical activity and to outline a more appropriate framework for investigating them. Aristotle originally proposed that human behavior may be better understood in terms of phronesis (practical reasoning), aimed at realizing valued goals rather than as the product of antecedent causal determinants. Instead of relying exclusively on scientific methodologies, a more comprehensive approach to study physical activity participation would also incorporate analytical processes used in the humanities, especially with respect to conceptualizing the role of values in guiding human behavior. Therefore, revising and expanding the research, teaching, and practice conducted in physical activity education are recommended.