Despite extensive use over 40 years, physical activity questionnaires still show limited reliability and validity. Measurements have value in indicating conditions where an increase in physical ...

Physical activity is an encompassing term for all human movement, in homes, schools, organisations and communities. Physical activity benefits individuals and societies, contributing to many of the ...

Introduction Cardiovascular benefits deriving from physical activity are well known, but it is unclear whether physical activity trajectories in late life are associated with different risks of ...

Physical fitness and exercise. Check out the latest articles on physical fitness, weight lifting programs, and new methods for improving exercise performance.