Midlife cardiorespiratory fitness and long-term risk of mortality
Midlife cardiorespiratory fitness and long-term risk of mortality Background Having good cardiorespiratory fitness (CRF) is known to help people live longer. However, the exact link between CRF and life expectancy isn’t completely clear. Objectives This study looked at how CRF affects life expectancy in middle-aged men who are employed and do not have heart disease. Methods The study involved 5,107 men with an average age of 48.8 years. Participants were divided into four groups based on their CRF levels: Below the normal range Low normal High normal Above the normal range Their CRF was measured using a bicycle exercise test. Results Over 46 years of follow-up: 4,700 men (92%) passed away, with 2,149 (42.1%) dying from heart disease. When comparing the different CRF groups: The low normal group lived 2.1 years longer than the lowest group. The high normal group lived 2.9 years longer than the lowest group. The above normal group had the longest life expectancy, living 4.9 years longer