High cardiorespiratory fitness (CRF) levels are associated with a reduced risk for chronic kidney disease (CKD), according to a study. Setor K. Kunutsor, M.D., Ph.D. and colleagues quantified the nature and magnitude of the association between CRF and CKD in a cohort of 2,099 men aged 42 to 61 years with normal kidney function at baseline. Data from repeat measurements of CRF taken 11 years after baseline were used to make correction for within-person variability. During a median follow-up of 25.8 years, 197 CKD events were recorded. The researchers found that for CRF, the age-adjusted regression dilution ratio was 0.59....
