Physical activity, sedentary time, and obesity in an international sample of children

Peter T Katzmarzyk; Tiago V Barreira; Stephanie T Broyles; Catherine M Champagne; Jean-Philippe Chaput; Mikael Fogelholm; Gang Hu; William D Johnson; Rebecca Kuriyan; Anura Kurpad; Estelle V Lambert; Carol Maher; Jose Maia; Victor Matsudo; Timothy Olds; Vincent Onywera; Olga L Sarmiento; Martyn Standage; Mark S Tremblay; Catrine Tudor-Locke; Pei Zhao; Timothy S Church

doi:10.1249/MSS.0000000000000649

Physical activity, sedentary time, and obesity in an international sample of children

Peter T Katzmarzyk, Tiago V Barreira, Stephanie T Broyles, Catherine M Champagne, Jean-Philippe Chaput, Mikael Fogelholm, Gang Hu, William D Johnson, Rebecca Kuriyan, Anura Kurpad, Estelle V Lambert, Carol Maher, Jose Maia, Victor Matsudo, Timothy Olds, Vincent Onywera, Olga L Sarmiento, Martyn Standage, Mark S Tremblay, Catrine Tudor-LockePei Zhao, Timothy S Church

Department for Health

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Abstract

PURPOSE: To determine the relationships between moderate-to-vigorous physical activity (MVPA), vigorous physical activity (VPA), sedentary time and obesity in children from 12 countries representing a wide range of human development.

METHODS: The sample included 6,539 children aged 9-11 years. Time in MVPA, VPA and sedentary behaviors were assessed by accelerometry. The body mass index (BMI; kg/m) was used to classify children as obese based on z-scores (>+2 SD) from World Health Organization reference data.

RESULTS: The mean (SD) times spent in MVPA, VPA and sedentary behavior were 60 (25) min/day, 18 (11) min/day and 513 (69) min/day, respectively. The overall proportion of the sample that was obese ranged from 5.2% to 24.6% across sites. The odds ratios for obesity were significant for MVPA (0.49; 95% CI: 0.44 - 0.55), VPA (0.41; 0.37 - 0.46) and sedentary time (1.19; 1.08 - 1.30) in the overall sample. The associations of MVPA and VPA with obesity were significant in all 12 sites, whereas the association between sedentary time and obesity was significant in 5 of the 12 sites. There was a significant difference in BMI z-scores across tertiles of MVPA (P<0.001) but not across tertiles of sedentary time in a mutually adjusted model. The results of receiver operating characteristic curve analyses for obesity indicated that the optimal thresholds for MVPA (AUC = 0.64), VPA (AUC = 0.67) and sedentary behavior (AUC = 0.57) were 55 (95% CI: 50-64) min/day, 14 (11-16) min/day and 482 (455-535) min/day, respectively.

CONCLUSIONS: Greater MVPA and VPA were both associated with lower odds of obesity, independent of sedentary behavior. Sedentary time was positively associated with obesity, but not independent of MVPA. Attaining at least 55 min/day of MVPA is associated with lower obesity in this multi-national sample of children, which supports current guidelines.

Original language	English
Pages (from-to)	2062-2069
Number of pages	8
Journal	Medicine & Science in Sports & Exercise
Volume	47
Issue number	10
Early online date	18 Feb 2015
DOIs	https://doi.org/10.1249/MSS.0000000000000649
Publication status	Published - Oct 2015

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10.1249/MSS.0000000000000649

Physical_Activity,_Sedentary_Time,_and_Obesity_in.7
'This is a non-final version of an article published in final form in Katzmarzyk, P. T., Barreira, T. V., Broyles, S. T., Champagne, C. M., Chaput, J-P., Fogelholm, M., ... Church, T. S. (2015). Physical activity, sedentary time, and obesity in an international sample of children. Medicine & Science in Sports & Exercise, 47(10), 2062-2069. 10.1249/MSS.0000000000000649
Accepted author manuscript, 285 KB

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Katzmarzyk, P. T., Barreira, T. V., Broyles, S. T., Champagne, C. M., Chaput, J.-P., Fogelholm, M., Hu, G., Johnson, W. D., Kuriyan, R., Kurpad, A., Lambert, E. V., Maher, C., Maia, J., Matsudo, V., Olds, T., Onywera, V., Sarmiento, O. L., Standage, M., Tremblay, M. S., ... Church, T. S. (2015). Physical activity, sedentary time, and obesity in an international sample of children. Medicine & Science in Sports & Exercise, 47(10), 2062-2069. https://doi.org/10.1249/MSS.0000000000000649

Katzmarzyk, PT, Barreira, TV, Broyles, ST, Champagne, CM, Chaput, J-P, Fogelholm, M, Hu, G, Johnson, WD, Kuriyan, R, Kurpad, A, Lambert, EV, Maher, C, Maia, J, Matsudo, V, Olds, T, Onywera, V, Sarmiento, OL, Standage, M, Tremblay, MS, Tudor-Locke, C, Zhao, P & Church, TS 2015, 'Physical activity, sedentary time, and obesity in an international sample of children', Medicine & Science in Sports & Exercise, vol. 47, no. 10, pp. 2062-2069. https://doi.org/10.1249/MSS.0000000000000649

@article{4edd49a16cec49bfac23c5a643465c0a,

title = "Physical activity, sedentary time, and obesity in an international sample of children",

abstract = "PURPOSE: To determine the relationships between moderate-to-vigorous physical activity (MVPA), vigorous physical activity (VPA), sedentary time and obesity in children from 12 countries representing a wide range of human development.METHODS: The sample included 6,539 children aged 9-11 years. Time in MVPA, VPA and sedentary behaviors were assessed by accelerometry. The body mass index (BMI; kg/m) was used to classify children as obese based on z-scores (>+2 SD) from World Health Organization reference data.RESULTS: The mean (SD) times spent in MVPA, VPA and sedentary behavior were 60 (25) min/day, 18 (11) min/day and 513 (69) min/day, respectively. The overall proportion of the sample that was obese ranged from 5.2% to 24.6% across sites. The odds ratios for obesity were significant for MVPA (0.49; 95% CI: 0.44 - 0.55), VPA (0.41; 0.37 - 0.46) and sedentary time (1.19; 1.08 - 1.30) in the overall sample. The associations of MVPA and VPA with obesity were significant in all 12 sites, whereas the association between sedentary time and obesity was significant in 5 of the 12 sites. There was a significant difference in BMI z-scores across tertiles of MVPA (P<0.001) but not across tertiles of sedentary time in a mutually adjusted model. The results of receiver operating characteristic curve analyses for obesity indicated that the optimal thresholds for MVPA (AUC = 0.64), VPA (AUC = 0.67) and sedentary behavior (AUC = 0.57) were 55 (95% CI: 50-64) min/day, 14 (11-16) min/day and 482 (455-535) min/day, respectively.CONCLUSIONS: Greater MVPA and VPA were both associated with lower odds of obesity, independent of sedentary behavior. Sedentary time was positively associated with obesity, but not independent of MVPA. Attaining at least 55 min/day of MVPA is associated with lower obesity in this multi-national sample of children, which supports current guidelines.",

author = "Katzmarzyk, {Peter T} and Barreira, {Tiago V} and Broyles, {Stephanie T} and Champagne, {Catherine M} and Jean-Philippe Chaput and Mikael Fogelholm and Gang Hu and Johnson, {William D} and Rebecca Kuriyan and Anura Kurpad and Lambert, {Estelle V} and Carol Maher and Jose Maia and Victor Matsudo and Timothy Olds and Vincent Onywera and Sarmiento, {Olga L} and Martyn Standage and Tremblay, {Mark S} and Catrine Tudor-Locke and Pei Zhao and Church, {Timothy S}",

year = "2015",

month = oct,

doi = "10.1249/MSS.0000000000000649",

language = "English",

volume = "47",

pages = "2062--2069",

journal = "Medicine & Science in Sports & Exercise",

issn = "0195-9131",

publisher = "Lippincott Williams & Wilkins",

number = "10",

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TY - JOUR

T1 - Physical activity, sedentary time, and obesity in an international sample of children

AU - Katzmarzyk, Peter T

AU - Barreira, Tiago V

AU - Broyles, Stephanie T

AU - Champagne, Catherine M

AU - Chaput, Jean-Philippe

AU - Fogelholm, Mikael

AU - Hu, Gang

AU - Johnson, William D

AU - Kuriyan, Rebecca

AU - Kurpad, Anura

AU - Lambert, Estelle V

AU - Maher, Carol

AU - Maia, Jose

AU - Matsudo, Victor

AU - Olds, Timothy

AU - Onywera, Vincent

AU - Sarmiento, Olga L

AU - Standage, Martyn

AU - Tremblay, Mark S

AU - Tudor-Locke, Catrine

AU - Zhao, Pei

AU - Church, Timothy S

PY - 2015/10

Y1 - 2015/10

N2 - PURPOSE: To determine the relationships between moderate-to-vigorous physical activity (MVPA), vigorous physical activity (VPA), sedentary time and obesity in children from 12 countries representing a wide range of human development.METHODS: The sample included 6,539 children aged 9-11 years. Time in MVPA, VPA and sedentary behaviors were assessed by accelerometry. The body mass index (BMI; kg/m) was used to classify children as obese based on z-scores (>+2 SD) from World Health Organization reference data.RESULTS: The mean (SD) times spent in MVPA, VPA and sedentary behavior were 60 (25) min/day, 18 (11) min/day and 513 (69) min/day, respectively. The overall proportion of the sample that was obese ranged from 5.2% to 24.6% across sites. The odds ratios for obesity were significant for MVPA (0.49; 95% CI: 0.44 - 0.55), VPA (0.41; 0.37 - 0.46) and sedentary time (1.19; 1.08 - 1.30) in the overall sample. The associations of MVPA and VPA with obesity were significant in all 12 sites, whereas the association between sedentary time and obesity was significant in 5 of the 12 sites. There was a significant difference in BMI z-scores across tertiles of MVPA (P<0.001) but not across tertiles of sedentary time in a mutually adjusted model. The results of receiver operating characteristic curve analyses for obesity indicated that the optimal thresholds for MVPA (AUC = 0.64), VPA (AUC = 0.67) and sedentary behavior (AUC = 0.57) were 55 (95% CI: 50-64) min/day, 14 (11-16) min/day and 482 (455-535) min/day, respectively.CONCLUSIONS: Greater MVPA and VPA were both associated with lower odds of obesity, independent of sedentary behavior. Sedentary time was positively associated with obesity, but not independent of MVPA. Attaining at least 55 min/day of MVPA is associated with lower obesity in this multi-national sample of children, which supports current guidelines.

AB - PURPOSE: To determine the relationships between moderate-to-vigorous physical activity (MVPA), vigorous physical activity (VPA), sedentary time and obesity in children from 12 countries representing a wide range of human development.METHODS: The sample included 6,539 children aged 9-11 years. Time in MVPA, VPA and sedentary behaviors were assessed by accelerometry. The body mass index (BMI; kg/m) was used to classify children as obese based on z-scores (>+2 SD) from World Health Organization reference data.RESULTS: The mean (SD) times spent in MVPA, VPA and sedentary behavior were 60 (25) min/day, 18 (11) min/day and 513 (69) min/day, respectively. The overall proportion of the sample that was obese ranged from 5.2% to 24.6% across sites. The odds ratios for obesity were significant for MVPA (0.49; 95% CI: 0.44 - 0.55), VPA (0.41; 0.37 - 0.46) and sedentary time (1.19; 1.08 - 1.30) in the overall sample. The associations of MVPA and VPA with obesity were significant in all 12 sites, whereas the association between sedentary time and obesity was significant in 5 of the 12 sites. There was a significant difference in BMI z-scores across tertiles of MVPA (P<0.001) but not across tertiles of sedentary time in a mutually adjusted model. The results of receiver operating characteristic curve analyses for obesity indicated that the optimal thresholds for MVPA (AUC = 0.64), VPA (AUC = 0.67) and sedentary behavior (AUC = 0.57) were 55 (95% CI: 50-64) min/day, 14 (11-16) min/day and 482 (455-535) min/day, respectively.CONCLUSIONS: Greater MVPA and VPA were both associated with lower odds of obesity, independent of sedentary behavior. Sedentary time was positively associated with obesity, but not independent of MVPA. Attaining at least 55 min/day of MVPA is associated with lower obesity in this multi-national sample of children, which supports current guidelines.

UR - http://dx.doi.org/10.1249/MSS.0000000000000649

U2 - 10.1249/MSS.0000000000000649

DO - 10.1249/MSS.0000000000000649

M3 - Article

C2 - 25751770

SN - 0195-9131

VL - 47

SP - 2062

EP - 2069

JO - Medicine & Science in Sports & Exercise

JF - Medicine & Science in Sports & Exercise

IS - 10

ER -

Physical activity, sedentary time, and obesity in an international sample of children

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