Key result
Higher total physical activity was associated with lower odds of chronic kidney disease (OR 0.86 per 30 minutes/day increase), while higher sedentary time was associated with higher odds (OR 1.16).
Why the study?
Few studies have examined the individual and conjoint associations of accelerometer-measured physical activity and sedentary times with the prevalence of chronic kidney disease among older adults.
Does higher accelerometer-measured physical activity and lower sedentary time associate with a lower prevalence of chronic kidney disease in community-based older adults?
Cross-Sectional (n=1,268)
No
Does higher accelerometer-measured physical activity and lower sedentary time associate with a lower prevalence of chronic kidney disease in community-based older adults?
Odds Ratio: 0.86 (95% CI 0.78–0.96)
p-value: p=0.007
Increasing light intensity physical activity and maintaining moderate to vigorous physical activity at the expense of sedentary time is associated with a lower risk of chronic kidney disease in older adults.
Supports inverse activity-CKD association in observational data but should not change practice; leaves open causality pending randomized trials.
BACKGROUND: Few studies examined the individual and conjoint associations of accelerometer-measured physical activity (PA) and sedentary times with the prevalence of chronic kidney disease (CKD) among older adults. METHODS: We evaluated 1,268 Framingham Offspring Study participants (mean age 69.2 years, 53.8% women) between 2011 and 2014. CKD was defined as an estimated glomerular filtration rate (eGFR) <60 ml/min/1.732 and/or urine albumin-to-creatinine ratio (UACR) ≥25/35 μg/mg (men/women). We used multivariable logistic regression models to relate time spent being sedentary and active with the odds of CKD. We then performed compositional data analysis to estimate the change in the eGFR and UACR when a fixed proportion of time in one activity behavior (among the following: moderate to vigorous physical activity [MVPA], light intensity physical activity [LIPA], and sedentary) is reallocated to another activity behavior. RESULTS: Overall, 258 participants had prevalent CKD (20.4%; 120 women). Higher total PA ([MVPA+LIPA], adjusted-odds ratio [OR] per 30 minutes/day increase, 0.86; 95% CI, 0.78-0.96) and higher LIPA (OR per 30 minutes/day increase, 0.87; 95% CI, 0.76-0.99) were associated with lower odds of CKD. Additionally, higher sedentary time (OR per 30 minutes/day increase, 1.16; 95% CI, 1.04-1.29) was associated with higher odds of CKD. Reallocating 5% of the time from LIPA to sedentary was associated with the largest predicted difference in eGFR (-1.06 ml/min/1.73m2). Reallocating 1% of time spent in MVPA to sedentary status predicted the largest difference in UACR (14.37 μg/mg). CONCLUSION: The findings suggest that increasing LIPA and maintaining MVPA at the expense of sedentary time may be associated with a lower risk of CKD in community-based older adults.
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Lee et al. (2020) conducted a cross-sectional in Chronic kidney disease (n=1,268). Total physical activity vs. Lower physical activity was evaluated on Prevalence of chronic kidney disease (eGFR <60 ml/min/1.73m2 and/or UACR ≥25/35 μg/mg) (OR 0.86, 95% CI 0.78-0.96, p=0.007). Higher total physical activity was associated with lower odds of chronic kidney disease (OR 0.86 per 30 minutes/day increase), while higher sedentary time was associated with higher odds (OR 1.16).
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