RT Journal Article SR Electronic T1 Habitual physical activity, renal function and chronic kidney disease: a cohort study of nearly 200 000 adults JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 1225 OP 1230 DO 10.1136/bjsports-2019-100989 VO 54 IS 20 A1 Cui Guo A1 Tony Tam A1 Yacong Bo A1 Ly-yun Chang A1 Xiang Qian Lao A1 G Neil Thomas YR 2020 UL http://bjsm.bmj.com/content/54/20/1225.abstract AB Background There is limited information on the association between habitual physical activity (PA) and renal function.Objective To report the longitudinal association between self-reported habitual PA and measures of renal function in a large cohort in Taiwan.Methods A total of 199 421 participants (aged ≥20 years) were selected from a Taiwan cohort between 1996 and 2014. All participants underwent at least two standardised medical examinations between 1996 and 2014. Self-administrated questionnaires were used to collect information on habitual PA. We used a generalised linear mixed model to investigate the associations between habitual PA and yearly change in estimated glomerular filtration rate (eGFR). The Cox proportional hazard regression model was used to investigate the associations between habitual PA and incident chronic kidney disease (CKD).Results Participants had a median follow-up duration of 4.2 years (0.2–18.9). The yearly mean (±SD) decrease in eGFR in participants with baseline very low-PA, low-PA, moderate-PA and high-PA was 0.46±1.01, 0.36±0.97, 0.30±0.94 and 0.27±0.91 mL/min/1.73 m2, respectively. Relative to the participants with very low-PA, the coefficients of yearly eGFR change were −43.93 (95% CI −79.18 to −8.68), 35.20 (95% CI −2.56 to 72.96) and 53.56 (95% CI 10.42 to 96.70) µL/min/1.73 m2, respectively, for the participants with low-PA, moderate-PA and high-PA, after controlling for a wide range of covariates. Relative to the very low-PA participants, those who had low-PA, moderate-PA and high-habitual PA had HRs of 0.93 (95% CI 0.88 to 0.98), 0.94 (95% CI 0.89 to 0.99) and 0.91 (95% CI 0.85 to 0.96) to develop CKD, respectively, after controlling for the covariates.Conclusions A higher level of habitual PA is associated with a smaller decrease in the level of eGFR and a lower risk of developing CKD.