Background. This study examined predictors of adoption and maintenance of vigorous
physical activity over time in a sample of 1,719 randomly selected women and men …

Predictors of changes in three measures of physical activity over 1 year were examined in a
community sample of 1,411 California adults. Five percent of women and 11% of men …

Background. In accordance with one of the Year 2000 Health Objectives, the current study
tests the efficacy of brief physician-based counseling to increase physical activity in …

Approximately 50 percent of individuals who start an exercise program withdraw within 6
months. Thus, many individuals withdraw before health benefits have been realized. This is …

Abstract Evaluation and delivery of physical activity and exercise programs appear impeded
by the substantial numbers of Americans who are unwilling or unable to participate regularly …

Background. Increasing regular physical activity in adults at elevated risk of cardiovascular
disease is an important target for preventive medicine. This study evaluated demographic …

Background. Demographic and psychosocial correlates of activity in domains other than
recreational activity have not been well characterized and may be particularly relevant for …

Background. Perceptions of personal efficacy have been consistently identified as being
determinants of exercise adherence in asymptomatic, rehabilitative, younger, and older …

Purpose. Drawing from self-determination theory, this study investigated adults' perceptions
of the process of long-term maintenance of physical activity and how it may relate to their self …

Summarizes the state of knowledge with respect to the known determinants of physical
activity participation in adults, especially women. The benefits of physical activity in …