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Volumes and bouts of sedentary behavior and physical activity: associations with cardiometabolic health in obese children

Journal Article


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Abstract


  • Objective

    To examine associations of volumes and bouts of sedentary behavior (SED) and moderate-to-vigorous physical activity (MVPA) with individual and clustered cardio-metabolic outcomes in overweight/obese children.

    Methods

    Cross-sectional data from 120 overweight/obese children (8.3 ± 1.1 years, 62% girls, 74% obese) with SED and MVPA assessed using accelerometry. Children were categorized into quartiles of mean bouts per day of SED (10, 20, and 30 min) and MVPA (5, 10, and 15 min). Associations with triglycerides, HDL cholesterol, glucose, insulin, systolic/diastolic blood pressure, and clustered cardio-metabolic risk (cMet) were examined using linear regression, adjusted for confounders.

    Results

    Independent of MVPA, SED volume was inversely associated with HDL cholesterol (β [95% CI] = −0.29 [−0.52, −0.05]). MVPA volume was inversely associated with diastolic blood pressure, independent of SED (β = −0.22 [−0.44, −0.001]), and cMet (β = −0.19 [−0.36, −0.01]) although not after adjustment for SED (β = −0.14 [−0.33, 0.06]). Independent of MVPA and SED volumes, participants in the highest quartile of 30 min bouts per day of SED had 12% lower HDL cholesterol than those in the lowest quartile (d = 0.53, P = 0.046, Ptrend = 0.11).

    Conclusions

    In addition to increasing MVPA, targeting reduced SED and limiting bouts of SED to <30 min may contribute to improved HDL cholesterol levels and cardio-metabolic health in overweight/obese children.

Publication Date


  • 2014

Citation


  • Cliff, D. P., Jones, R. A., Burrows, T. L., Morgan, P. J., Collins, C. E., Baur, L. A. & Okely, A. D. (2014). Volumes and bouts of sedentary behavior and physical activity: associations with cardiometabolic health in obese children. Obesity, 22 (5), E112-E118.

Scopus Eid


  • 2-s2.0-84899750062

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1514&context=sspapers

Ro Metadata Url


  • http://ro.uow.edu.au/sspapers/515

Has Global Citation Frequency


Start Page


  • E112

End Page


  • E118

Volume


  • 22

Issue


  • 5

Place Of Publication


  • United States

Abstract


  • Objective

    To examine associations of volumes and bouts of sedentary behavior (SED) and moderate-to-vigorous physical activity (MVPA) with individual and clustered cardio-metabolic outcomes in overweight/obese children.

    Methods

    Cross-sectional data from 120 overweight/obese children (8.3 ± 1.1 years, 62% girls, 74% obese) with SED and MVPA assessed using accelerometry. Children were categorized into quartiles of mean bouts per day of SED (10, 20, and 30 min) and MVPA (5, 10, and 15 min). Associations with triglycerides, HDL cholesterol, glucose, insulin, systolic/diastolic blood pressure, and clustered cardio-metabolic risk (cMet) were examined using linear regression, adjusted for confounders.

    Results

    Independent of MVPA, SED volume was inversely associated with HDL cholesterol (β [95% CI] = −0.29 [−0.52, −0.05]). MVPA volume was inversely associated with diastolic blood pressure, independent of SED (β = −0.22 [−0.44, −0.001]), and cMet (β = −0.19 [−0.36, −0.01]) although not after adjustment for SED (β = −0.14 [−0.33, 0.06]). Independent of MVPA and SED volumes, participants in the highest quartile of 30 min bouts per day of SED had 12% lower HDL cholesterol than those in the lowest quartile (d = 0.53, P = 0.046, Ptrend = 0.11).

    Conclusions

    In addition to increasing MVPA, targeting reduced SED and limiting bouts of SED to <30 min may contribute to improved HDL cholesterol levels and cardio-metabolic health in overweight/obese children.

Publication Date


  • 2014

Citation


  • Cliff, D. P., Jones, R. A., Burrows, T. L., Morgan, P. J., Collins, C. E., Baur, L. A. & Okely, A. D. (2014). Volumes and bouts of sedentary behavior and physical activity: associations with cardiometabolic health in obese children. Obesity, 22 (5), E112-E118.

Scopus Eid


  • 2-s2.0-84899750062

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1514&context=sspapers

Ro Metadata Url


  • http://ro.uow.edu.au/sspapers/515

Has Global Citation Frequency


Start Page


  • E112

End Page


  • E118

Volume


  • 22

Issue


  • 5

Place Of Publication


  • United States