Objective.—To evaluate the relationship between changes in physical fitness and risk of
mortality in men. Design.—Prospective study, with two clinical examinations (mean interval
between examinations, 4.9 years) to assess change or lack of change in physical fitness as
associated with risk of mortality during follow-up after the subsequent examination (mean
follow-up from subsequent examination, 5.1 years). Setting.—Preventive medicine clinic.
Study Participants.—Participants were 9777 men given two preventive medical …