Journal List > Korean J Sports Med > v.35(1) > 1054602

Park, Lee, and Kim: The Association between Sitting Time, Physical Activity Level and Chronic Kidney Disease in the Healthy Adults

Abstract

This study aimed to examine the prevalence of chronic kidney disease (CKD) in association with physical activity and sitting time. Participants of this study are Korean men and women aged 40 to 69, who completed health examination from 2001 to 2003. Physical activity was measured by using an International Physical Activity questionnaire. CKD was defined by estimated glomerular filtration rate that is lower than 60 mL/min/1.73 m2. Logistic regression was conducted to evaluate the association of sitting time and physical activity with CKD (p<0.05). When age, sex, and other risk factor of CKD are adjusted, subjects who reported high level of physical activity participation had a significantly lower odds ratio (OR) of CKD than subjects who reported as sitting low level of physical activity participation (OR, 0.70; 95% confidence interval [CI], 0.50–0.99), and subjects who spend more than 5 hours had significantly higher OR of CKD than subjects who spend less than 1 hours (OR, 1.63; 95% CI, 1.13–2.37). Multivariate-adjusted OR of CKD associated with sitting time more than 5 hours (OR, 2.21; 95% CI, 1.09–4.52) and high physical activity participation more than 1 hours (OR, 0.48; 95% CI, 0.23–0.99) and 5 hours (OR, 0.47; 95% CI, 0.24–0.90) were significant in men. High level of physical activity and low level of sitting time were independently associated with OR of CKD, and this supports the importance of reducing sitting time as well as promoting physical activity participation.

References

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Table 1.
Baseline characteristics of study participants by gender
Characteristics of risk factor Total Male Female
Non CKD (n=3,839) CKD (n=121) p-value Non CKD (n=3,839) CKD (n=121) p-value Non CKD (n=4,108) CKD (n=204) p-value
Age (yr) 51.53±8.79 56.01±8.52 <0.001 51.02±8.61 52.67±8.14 0.038 52.00±8.94 57.99±8.13 <0.001
Sleep duration (hr/day) 6.75±1.37 6.86±1.28 0.133 6.83±1.32 6.84±1.21 0.914 6.67±1.42 6.87±1.32 0.042
% BMI (≥25 kg/m2) 41.79 53.23 <0.001 39.02 51.24 0.007 44.38 54.41 0.005
Alcohol intake (%) 48.86 35.69 <0.001 72.73 61.98 0.027 26.56 20.10 0.036
Current smoke (%) 26.34 19.08 0.013 50.51 42.15 0.002 3.75 5.39 0.475
Energy intake (g/day) 1,956.63±704.65 1,887.83±690.63 0.084 2,028.51±669.42 2,001.53±642.27 0.657 1,889.46±729.77 1,820.67±710.81 0.188
Protein intake (g/day) 66.62±30.11 63.60±27.95 0.075 69.79±29.24 68.48±26.83 0.625 63.65±30.60 60.70±28.26 0.178
Serum BUN 13.74±3.61 17.12±5.11 <0.001 14.47±3.64 18.01±5.24 <0.001 13.05±3.44 16.59±4.97 <0.001
C-reactive protein 0.23±0.54 0.28±0.51 0.125 0.25±0.55 0.295±0.53 0.328 0.22±0.54 0.27±0.51 0.191
HOMA-IR 30.61±20.56 31.87±15.93 0.277 29.19±19.20 31.02±13.42 0.297 31.95±21.68 32.37±17.26 0.783
Urine protein test (%) 2.00 5.54 <0.001 2.32 9.92 <0.001 1.70 2.94 0.347
History of hypertension 13.14 31.69 <0.001 11.12 33.88 <0.001 15.02 30.39 <0.001
% Lying time (≥5 hr/day) 3.15 3.38 0.128 3.20 3.31 0.036 3.09 3.43 0.729
% Sitting time (≥5 hr/day) 26.61 30.46 0.132 32.66 44.63 0.006 20.96 22.06 0.825
% Light PA (≥5 hr/day) 19.32 16.92 0.398 18.62 14.88 0.544 19.96 18.14 0.811
% Moderate PA (≥5 hr/day) 4.44 1.85 0.017 5.13 0.83 0.059 3.80 2.45 0.294
% Vigorous PA (≥5 hr/day) 17.84 15.69 0.274 18.96 10.74 0.002 16.80 18.63 0.595

Values are presented as mean±standard deviation unless otherwise indicated.

CKD: chronic kidney disease, BMI: body mass index, BUN: blood urea nitrogen, HOMA-IR: homeostasis model assessment of insulin resistance, PA: physical activity.

Table 2.
Association of sedentary behavior and physical activity with CKD in healthy adult
Characteristics of risk factor Age-sex adjusted OR (95% CI) Multivariable adjusted OR (95% CI)
Model 1 Model 2
Sitting time (hr/day) <1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1−5 1.31 (0.960−1.80) 1.30 (0.95−1.79) 1.33 (0.96−1.84)
  ≥5 1.66 (1.17−2.37) 1.62 (1.14−2.32) 1.63 (1.13−2.37)
  p-trend 0.005 0.007 0.01
Low PA (hr/day) <1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1−5 1.03 (0.79−1.35) 1.05 (0.80−1.37) 1.03 (0.78−1.36)
  ≥5 0.92 (0.65−1.31) 0.94 (0.66−1.34) 0.90 (0.63−1.31)
  p-trend 0.707 0.801 0.684
Moderate PA (hr/day) <1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1−5 0.84 (0.62−1.14) 0.85 (0.63−1.16) 0.82 (0.59−1.12)
  ≥5 0.40 (0.17−0.90) 0.40 (0.18−0.91) 0.40 (0.18−0.94)
  p-trend 0.020 0.025 0.02
Vigorous PA (hr/day) <1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1−5 0.73 (0.50−1.07) 0.74 (0.51−1.07) 0.71 (0.48−1.06)
  ≥5 0.67 (0.48−0.94) 0.70 (0.50−0.97) 0.70 (0.50−0.99)
  p-trend 0.011 0.022 0.028

Multivariable model 1 was adjusted for physical activities (low, moderate, vigorous) and sitting time simultaneously as well as age, sex and history of hypertension; Model 2 was adjusted for model 1 as well as sleep duration, lying duration, alcohol consumption, current smoking, protein intake, total energy intake, HOMA-IR, hs-CRP, serum BUN, urine of protein and BMI. CKD: chronic kidney disease, OR: odds ratio, CI: confidence interval, PA: physical activity, HOMA-IR: homeostasis model assessment of insulin resistance, hs-CRP: high-sensitivity C-reactive protein, BUN: blood urea nitrogen, BMI: body mass index.

Table 3.
Association of sedentary behavior physical activity with CKD in healthy adult by gender
Characteristics of risk factor Male (n=3,960) Female (n=4,312)
Age adjusted OR (95% CI) Multivariable adjusted OR (95% CI) Age adjusted OR (95% CI) Multivariable adjusted OR (95% CI)
Sitting time (hr/day) <1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1−5 1.62 (0.86−3.04) 1.71 (0.87−3.36) 1.17 (0.81−1.68) 1.17 (0.80−1.71)
  ≥5 2.00 (1.03−3.88) 2.21 (1.09−4.52) 1.34 (0.85−2.09) 1.29 (0.81−2.05)
  p-trend 0.044 0.029 0.203 0.286
Low PA (hr/day) <1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1−5 0.95 (0.63−1.43) 0.86 (0.56−1.33) 1.16 (0.81−1.66) 1.15 (0.80−1.67)
  ≥5 0.74 (0.42−1.32) 0.74 (0.41−1.34) 1.13 (0.71−1.78) 1.05 (0.65−1.70)
  p-trend 0.348 0.298 0.570 0.774
Moderate PA (hr/day) <1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1−5 0.86 (0.54−1.39) 0.85 (0.52−1.40) 0.87 (0.58−1.29) 0.82 (0.54−1.24)
  ≥5 0.17 (0.02−1.22) 0.18 (0.24−1.31) 0.57 (0.23−1.43) 0.58 (0.23−1.47)
  p-trend 0.077 0.089 0.194 0.149
Vigorous PA (hr/day) <1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1−5 0.41 (0.20−0.83) 0.48 (0.23−0.99) 1.03 (0.66−1.61) 0.93 (0.58−1.47)
  ≥5 0.43 (0.23−0.81) 0.47 (0.24−0.90) 0.86 (0.58−1.28) 0.90 (0.60−1.37)
  p-trend 0.002 0.01 0.517 0.615

Multivariable model was adjusted for physical activities (low, moderate, vigorous) and sitting time simultaneously as well as age, sex, sleep duration, lying duration, alcohol consumption, current smoking, protein intake, total energy intake, HOMA-IR, hs-CRP, serum BUN, history of hypertension, urine of protein and BMI.

CKD: chronic kidney disease, OR: odds ratio, CI: confidence interval, PA: physical activity, HOMA-IR: homeostasis model assessment of insulin resistance, hs-CRP: high-sensitivity C-reactive protein, BUN: blood urea nitrogen, BMI: body mass index.

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