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Seasonal variation in physical activity and sedentary time in different European regions: the HELENA study

(2013) JOURNAL OF SPORTS SCIENCES. 31(16). p.1831-1840
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Abstract
This report aims (1) to examine the association between seasonality and physical activity (PA) and sedentary time in European adolescents and (2) to investigate whether this association was influenced by geographical location (Central-North versus South of Europe), which implies more or less extreme weather and daylight hours. Valid data on PA, sedentary time and seasonality were obtained in 2173 adolescents (1175 females; 12.5-17.5 years) included in this study. Physical activity and sedentary time were measured by accelerometers. ANCOVA was conducted to analyse the differences in PA and sedentary time across seasons. Results showed that girls had lower levels of moderate to vigorous PA (MVPA) and average PA, and spent more time in sedentary activities in winter compared with spring (all P< 0.05). Stratified analyses showed differences in PA and sedentary time between winter and spring in European girls from Central-North of Europe (P< 0.05 for sedentary time). There were no differences between PA and sedentary time across seasonality in boys. In conclusion, winter is related with less time spent in MVPA, lower average PA and higher time spent in sedentary activities in European adolescent girls, compared with spring. These differences seem to mainly occur in Central-North Europe.
Keywords
accelerometer, active, inactive, moderate-to-vigorous physical activity, paediatric population, season, HEALTHY LIFE-STYLE, AGED CHILDREN, SOCIOECONOMIC-STATUS, PRESCHOOL-CHILDREN, SCHOOL-CHILDREN, BONE MASS, ADOLESCENTS, ACCELEROMETER, VARIABILITY, BEHAVIOR

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MLA
Gracia-Marco, Luis, Francisco B Ortega, Jonatan R Ruiz, et al. “Seasonal Variation in Physical Activity and Sedentary Time in Different European Regions: The HELENA Study.” JOURNAL OF SPORTS SCIENCES 31.16 (2013): 1831–1840. Print.
APA
Gracia-Marco, L., Ortega, F. B., Ruiz, J. R., Williams, C. A., Hagströmer, M., Manios, Y., Kafatos, A., et al. (2013). Seasonal variation in physical activity and sedentary time in different European regions: the HELENA study. JOURNAL OF SPORTS SCIENCES, 31(16), 1831–1840.
Chicago author-date
Gracia-Marco, Luis, Francisco B Ortega, Jonatan R Ruiz, Craig A Williams, Maria Hagströmer, Yannis Manios, Anthony Kafatos, et al. 2013. “Seasonal Variation in Physical Activity and Sedentary Time in Different European Regions: The HELENA Study.” Journal of Sports Sciences 31 (16): 1831–1840.
Chicago author-date (all authors)
Gracia-Marco, Luis, Francisco B Ortega, Jonatan R Ruiz, Craig A Williams, Maria Hagströmer, Yannis Manios, Anthony Kafatos, Laurent Béghin, Angela Polito, Stefaan De Henauw, Jara Valtueña, Kurt Widhalm, Denes Molnar, Ute Alexy, Luis A Moreno, and Michael Sjöström. 2013. “Seasonal Variation in Physical Activity and Sedentary Time in Different European Regions: The HELENA Study.” Journal of Sports Sciences 31 (16): 1831–1840.
Vancouver
1.
Gracia-Marco L, Ortega FB, Ruiz JR, Williams CA, Hagströmer M, Manios Y, et al. Seasonal variation in physical activity and sedentary time in different European regions: the HELENA study. JOURNAL OF SPORTS SCIENCES. 2013;31(16):1831–40.
IEEE
[1]
L. Gracia-Marco et al., “Seasonal variation in physical activity and sedentary time in different European regions: the HELENA study,” JOURNAL OF SPORTS SCIENCES, vol. 31, no. 16, pp. 1831–1840, 2013.
@article{4253521,
  abstract     = {This report aims (1) to examine the association between seasonality and physical activity (PA) and sedentary time in European adolescents and (2) to investigate whether this association was influenced by geographical location (Central-North versus South of Europe), which implies more or less extreme weather and daylight hours. Valid data on PA, sedentary time and seasonality were obtained in 2173 adolescents (1175 females; 12.5-17.5 years) included in this study. Physical activity and sedentary time were measured by accelerometers. ANCOVA was conducted to analyse the differences in PA and sedentary time across seasons. Results showed that girls had lower levels of moderate to vigorous PA (MVPA) and average PA, and spent more time in sedentary activities in winter compared with spring (all P< 0.05). Stratified analyses showed differences in PA and sedentary time between winter and spring in European girls from Central-North of Europe (P< 0.05 for sedentary time). There were no differences between PA and sedentary time across seasonality in boys. In conclusion, winter is related with less time spent in MVPA, lower average PA and higher time spent in sedentary activities in European adolescent girls, compared with spring. These differences seem to mainly occur in Central-North Europe.},
  author       = {Gracia-Marco, Luis and Ortega, Francisco B and Ruiz, Jonatan R and Williams, Craig A and Hagströmer, Maria and Manios, Yannis and Kafatos, Anthony and Béghin, Laurent and Polito, Angela and De Henauw, Stefaan and Valtueña, Jara and Widhalm, Kurt and Molnar, Denes and Alexy, Ute and Moreno, Luis A and Sjöström, Michael},
  issn         = {0264-0414},
  journal      = {JOURNAL OF SPORTS SCIENCES},
  keywords     = {accelerometer,active,inactive,moderate-to-vigorous physical activity,paediatric population,season,HEALTHY LIFE-STYLE,AGED CHILDREN,SOCIOECONOMIC-STATUS,PRESCHOOL-CHILDREN,SCHOOL-CHILDREN,BONE MASS,ADOLESCENTS,ACCELEROMETER,VARIABILITY,BEHAVIOR},
  language     = {eng},
  number       = {16},
  pages        = {1831--1840},
  title        = {Seasonal variation in physical activity and sedentary time in different European regions: the HELENA study},
  url          = {http://dx.doi.org/10.1080/02640414.2013.803595},
  volume       = {31},
  year         = {2013},
}

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