European Journal of Pediatrics

, Volume 177, Issue 11, pp 1705–1710 | Cite as

Are adolescents really being sedentary or inactive when at school? An analysis of sedentary behaviour and physical activity bouts

  • Bruno Gonçalves Galdino da Costa
  • Kelly Samara da Silva
  • Luís Eduardo Argenta Malheiros
  • Giseli Minatto
  • Luiz Rodrigo Augustemak de Lima
  • Edio Luiz Petroski
Original Article


This study analysed physical activity (PA) and sedentary behaviour (SB) performed in bouts during schooltime. Adolescents of two schools answered a questionnaire, had their height and weight measured and wore accelerometers during schooltime. Moderate-to-vigorous intensity PA was estimated in bouts of 2, 5 and 10 min, and SB in bouts of 5, 10, 30 and 60 min. Body mass index was calculated, and adolescents were classified as overweight or normal weight. Frequency, duration and volume of PA and SB were calculated for the whole sample and for those who performed at least one bout weekly. PA and SB differences between gender and weight status were tested using Mann-Whitney and t tests. A total of 415 adolescents (54% girls, 12.3 ± 1.3 years old, 34.6% overweight) performed 0.1 (± 0.2), 0.2 (± 0.5) and 0.4 (± 0.6) bouts of 10, 5 and 2 min of PA, and 10.6 (± 2.0), 6.0 (± 1.3), 1.1 (± 0.9) and 0.4 (± 0.5) bouts/day of 5, 10, 30 and 60 min of SB, respectively. Boys accumulated less SB and more PA in bouts. No differences were found for weight status.

Conclusion: Adolescents hardly engaged in bouted PA and accumulated more SB in smaller bouts during schooltime. Bouted PA and SB were not associated with weight status.

What is Known:

Adolescents are not engaging in enough PA and are accumulating large volumes of SB, which might negatively impact their health.

• Schools play an important role in daily overall PA, with opportunities such as PE classes and recesses. But most classes are still undertaken in seated positions.

What is New:

Adolescents hardly engage in bouted (> 10 m) PA when at school., and most SB is accumulated in short bouts (≤  10m).

Weight status was not associated with bouted PA or SB at school


Accelerometry Exercise Youth School 



Moderate-to-vigorous intensity physical activity


Sedentary behaviour


Metabolic equivalent of task


Body mass index



The authors would like to thank all the students that participated in the study, and the researchers from the Research Centre of Physical Activity and Health, Research Centre of Kineanthropometry and Human Performance, and the staff of the Board of Education of Florianopolis for their contribution to the research.

Authors’ contributions

BGGC: contributed to the conception of the study, data collection, data analysis, and drafted the manuscript.

KSS: contributed to the analysis, interpretation of data, and revised and reviewed the manuscript.

LEAM: contributed to the data management and initial analysis, interpretation of data, and revised and reviewed the manuscript.

GM: participated in the study design and conduction, data collection, revised and reviewed the manuscript.

LRAL: participated in the study design and conduction, data collection, revised and reviewed the manuscript.

ELP: conceptualized the study design and coordinated data collection, critically reviewed the manuscript.

All authors have revised and approved the manuscript as submitted.

Funding source

This study is financially supported by the National Council for Scientific and Technological Development (CNpQ - 474184/2013-7). BGGC, GM and LRAL received scholarships from the Brazilian Coordination for the Improvement of Higher Education Personnel (CAPES). This study is registered at (Identifier NCT02719704).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Informed consent

All procedures were approved by the Ethics Committee on Human Research of the Carmela Dutra Maternity Hospital (process 780.303), and all participants provided a consent form signed by their respective legal guardians.


  1. 1.
    Andersen LB, Harro M, Sardinha LB, Froberg K, Ekelund U, Brage S, Anderssen SA (2006) Physical activity and clustered cardiovascular risk in children: a cross-sectional study (The European Youth Heart Study). Lancet 368:299–304. CrossRefPubMedGoogle Scholar
  2. 2.
    Ascenso A, Palmeira A, Pedro LM, Martins S, Fonseca H (2016) Physical activity and cardiorespiratory fitness, but not sedentary behavior, are associated with carotid intima-media thickness in obese adolescents. Eur J Pediatr 175:391–398. CrossRefPubMedGoogle Scholar
  3. 3.
    Bailey DP, Fairclough SJ, Savory LA, Denton SJ, Pang D, Deane CS, Kerr CJ (2012) Accelerometry-assessed sedentary behaviour and physical activity levels during the segmented school day in 10-14-year-old children: the HAPPY study. Eur J Pediatr 171:1805–1813. CrossRefPubMedGoogle Scholar
  4. 4.
    Bauman AE, Reis RS, Sallis JF, Wells JC, Loos RJF, Martin BW (2012) Correlates of physical activity: why are some people physically active and others not? Lancet 380:258–271. CrossRefPubMedGoogle Scholar
  5. 5.
    Carson V, Hunter S, Kuzik N, Gray CE, Poitras VJ, Chaput JP, Saunders TJ, Katzmarzyk PT, Okely AD, Connor Gorber S, Kho ME, Sampson M, Lee H, Tremblay MS (2016) Systematic review of sedentary behaviour and health indicators in school-aged children and youth: an update. Appl Physiol Nutr Metab 41:S240–S265. CrossRefPubMedGoogle Scholar
  6. 6.
    da Costa BGG, da Silva KS, da Silva JA et al (2017) Sociodemographic, biological, and psychosocial correlates of light-and moderate-to-vigorous-intensity physical activity during school time, recesses, and physical education classes. J Sport Health Sci.
  7. 7.
    de Onis M, Onyango AW, Borghi E, Siyam A, Nishida C, Siekmann J (2007) Development of a WHO growth reference for school-aged children and adolescents. Bull World Health Organ 85:660–667CrossRefGoogle Scholar
  8. 8.
    Dorsey KB, Herrin J, Krumholz HM (2011) Patterns of moderate and vigorous physical activity in obese and overweight compared with non-overweight children. Int J Pediatr Obes 6:6–e555. CrossRefGoogle Scholar
  9. 9.
    Evenson KR, Catellier DJ, Gill K, Ondrak KS, McMurray RG (2008) Calibration of two objective measures of physical activity for children. J Sports Sci 26:1557–1565. CrossRefPubMedGoogle Scholar
  10. 10.
    Goldfield GS, Murray M, Maras D, Wilson AL, Phillips P, Kenny GP, Hadjiyannakis S, Alberga A, Cameron JD, Tulluch H, Sigal RJ (2016) Screen time is associated with depressive symptomatology among obese adolescents: a HEARTY study. Eur J Pediatr 175:909–919. CrossRefPubMedGoogle Scholar
  11. 11.
    Guinhouya BC, Lemdani M, Vilhelm C et al (2009) How school time physical activity is the “big one” for daily activity among schoolchildren: a semi-experimental approach. J Phys Act Health 6:510–519CrossRefGoogle Scholar
  12. 12.
    Hollis JL, Williams AJ, Sutherland R, Campbell E, Nathan N, Wolfenden L, Morgan PJ, Lubans DR, Wiggers J (2016) A systematic review and meta-analysis of moderate-to-vigorous physical activity levels in elementary school physical education lessons. Prev Med 86:34–54. CrossRefPubMedGoogle Scholar
  13. 13.
    Holman RM, Carson V, Janssen I (2011) Does the fractionalization of daily physical activity (sporadic vs. bouts) impact cardiometabolic risk factors in children and youth? PLoS One 6:e25733. CrossRefPubMedPubMedCentralGoogle Scholar
  14. 14.
    Janssen X, Mann KD, Basterfield L, Parkinson KN, Pearce MS, Reilly JK, Adamson AJ, Reilly JJ (2016) Development of sedentary behavior across childhood and adolescence: longitudinal analysis of the Gateshead Millennium Study. Int J Behav Nutr Phys Act 13(88):88. CrossRefPubMedPubMedCentralGoogle Scholar
  15. 15.
    Júdice PB, Silva AM, Berria J, Petroski EL, Ekelund U, Sardinha LB (2017) Sedentary patterns, physical activity and health-related physical fitness in youth: a cross-sectional study. Int J Behav Nutr Phys Act 14:25. CrossRefPubMedPubMedCentralGoogle Scholar
  16. 16.
    McKenzie TL, Lounsbery MA (2014) The pill not taken: revisiting physical education teacher effectiveness in a public health context. Res Q Exerc Sport 85:287–292. CrossRefPubMedGoogle Scholar
  17. 17.
    Nettlefold L, McKay HA, Warburton DE et al (2011) The challenge of low physical activity during the school day: at recess, lunch and in physical education. Br J Sports Med 45:813–819. CrossRefPubMedGoogle Scholar
  18. 18.
    Ridgers ND, Stratton G, Fairclough SJ, Twisk JWR (2007) Children’s physical activity levels during school recess: a quasi-experimental intervention study. Int J Behav Nutr Phys Act 4:19–19. CrossRefPubMedPubMedCentralGoogle Scholar
  19. 19.
    Ridgers ND, Salmon J, Timperio A (2015) Too hot to move? Objectively assessed seasonal changes in Australian children’s physical activity. Int J Behav Nutr Phys Act 12:77. CrossRefPubMedPubMedCentralGoogle Scholar
  20. 20.
    Sanders T, Cliff DP, Lonsdale C (2014) Measuring adolescent boys’ physical activity: bout length and the influence of accelerometer epoch length. PLoS One 9:e92040. CrossRefPubMedPubMedCentralGoogle Scholar
  21. 21.
    Tremblay MS, Colley RC, Saunders TJ, Healy GN, Owen N (2010) Physiological and health implications of a sedentary lifestyle. Appl Physiol Nutr Metab 35:725–740. CrossRefPubMedGoogle Scholar
  22. 22.
    Tremblay MS, LeBlanc AG, Kho ME et al (2011) Systematic review of sedentary behaviour and health indicators in school-aged children and youth. Int J Behav Nutr Phys Act 8:98–98. CrossRefPubMedPubMedCentralGoogle Scholar
  23. 23.
    van Stralen MM, Yildirim M, Wulp A et al (2014) Measured sedentary time and physical activity during the school day of European 10- to 12-year-old children: the ENERGY project. J Sci Med Sport 17:201–206. CrossRefPubMedGoogle Scholar
  24. 24.
    Willis EA, Ptomey LT, Szabo-Reed AN, Honas JJ, Lee J, Washburn RA, Donnelly JE (2015) Length of moderate-to-vigorous physical activity bouts and cardio-metabolic risk factors in elementary school children. Prev Med 73:76–80. CrossRefPubMedPubMedCentralGoogle Scholar
  25. 25.
    World Health Organization (2010) Global recommendations on physical activity and health. WHO, GenevaGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Bruno Gonçalves Galdino da Costa
    • 1
  • Kelly Samara da Silva
    • 1
  • Luís Eduardo Argenta Malheiros
    • 1
  • Giseli Minatto
    • 1
    • 2
  • Luiz Rodrigo Augustemak de Lima
    • 2
  • Edio Luiz Petroski
    • 2
  1. 1.Center of Sports, Research Center in Physical Activity and HealthFederal University of Santa CatarinaFlorianópolisBrazil
  2. 2.Research Center in Kineanthropometry and Human Performance, Center of SportsFederal University of Santa CatarinaFlorianópolisBrazil

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