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Study protocol of physical activity and sedentary behaviour measurement among schoolchildren by accelerometry: cross-sectional survey as part of the ENERGY-project

Mine Yildirim, Maïté Verloigne UGent, Ilse De Bourdeaudhuij UGent, Odysseas Androutsos, Yannis Manios, Regina Felso, Eva Kovacs, Alain Doessegger, Bettina Bringolf-Isler, Saskia J Te Velde, et al. (2011) BMC PUBLIC HEALTH. 11.
abstract
Background: Physical activity and sedentary behaviour among children should be measured accurately in order to investigate their relationship with health. Accelerometry provides objective and accurate measurement of body movement, which can be converted to meaningful behavioural outcomes. The aim of this study was to evaluate the best evidence for the decisions on data collection and data processing with accelerometers among children resulting in a standardized protocol for use in the participating countries. Methods/Design: This cross-sectional accelerometer study was conducted as part of the European ENERGY-project that aimed to produce an obesity prevention intervention among schoolchildren. Five countries, namely Belgium, Greece, Hungary, Switzerland and the Netherlands participated in the accelerometer study. We used three different Actigraph models-Actitrainers (triaxial), GT3Xs and GT1Ms. Children wore the device for six consecutive days including two weekend days. We selected an epoch length of 15 seconds. Accelerometers were placed at children's waist at the right side of the body in an elastic belt. In total, 1082 children participated in the study (mean age = 11.7 +/- 0.75 y, 51% girls). Non-wearing time was calculated as periods of more than 20 minutes of consecutive zero counts. The minimum daily wearing time was set to 10 hours for weekdays and 8 hours for weekend days. The inclusion criterion for further analysis was having at least three valid weekdays and one valid weekend day. We selected a cut-point (count per minute (cpm)) of < 100 cpm for sedentary behaviour, < 3000 cpm for light, < 5200 cpm for moderate, and > 5200 cpm for vigorous physical activity. We also created time filters for school-time during data cleaning in order to explore school-time physical activity and sedentary behaviour patterns in particular. Discussion: This paper describes the decisions for data collection and processing. Use of standardized protocols would ease future use of accelerometry and the comparability of results between studies.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
CALIBRATION, YOUTH, CHILDREN, ADOLESCENT GIRLS, HEALTH
journal title
BMC PUBLIC HEALTH
BMC Public Health
volume
11
article number
182
pages
7 pages
Web of Science type
Article
Web of Science id
000289556600001
JCR category
PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
JCR impact factor
1.997 (2011)
JCR rank
60/156 (2011)
JCR quartile
2 (2011)
ISSN
1471-2458
DOI
10.1186/1471-2458-11-182
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1259613
handle
http://hdl.handle.net/1854/LU-1259613
date created
2011-06-10 11:16:20
date last changed
2016-12-21 15:42:40
@article{1259613,
  abstract     = {Background: Physical activity and sedentary behaviour among children should be measured accurately in order to investigate their relationship with health. Accelerometry provides objective and accurate measurement of body movement, which can be converted to meaningful behavioural outcomes. The aim of this study was to evaluate the best evidence for the decisions on data collection and data processing with accelerometers among children resulting in a standardized protocol for use in the participating countries. Methods/Design: This cross-sectional accelerometer study was conducted as part of the European ENERGY-project that aimed to produce an obesity prevention intervention among schoolchildren. Five countries, namely Belgium, Greece, Hungary, Switzerland and the Netherlands participated in the accelerometer study. We used three different Actigraph models-Actitrainers (triaxial), GT3Xs and GT1Ms. Children wore the device for six consecutive days including two weekend days. We selected an epoch length of 15 seconds. Accelerometers were placed at children's waist at the right side of the body in an elastic belt. In total, 1082 children participated in the study (mean age = 11.7 +/- 0.75 y, 51\% girls). Non-wearing time was calculated as periods of more than 20 minutes of consecutive zero counts. The minimum daily wearing time was set to 10 hours for weekdays and 8 hours for weekend days. The inclusion criterion for further analysis was having at least three valid weekdays and one valid weekend day. We selected a cut-point (count per minute (cpm)) of {\textlangle} 100 cpm for sedentary behaviour, {\textlangle} 3000 cpm for light, {\textlangle} 5200 cpm for moderate, and {\textrangle} 5200 cpm for vigorous physical activity. We also created time filters for school-time during data cleaning in order to explore school-time physical activity and sedentary behaviour patterns in particular. Discussion: This paper describes the decisions for data collection and processing. Use of standardized protocols would ease future use of accelerometry and the comparability of results between studies.},
  articleno    = {182},
  author       = {Yildirim, Mine and Verloigne, Ma{\"i}t{\'e} and De Bourdeaudhuij, Ilse and Androutsos, Odysseas and Manios, Yannis and Felso, Regina and Kovacs, Eva and Doessegger, Alain and Bringolf-Isler, Bettina and Velde, Saskia J Te and Brug, Johannes and Chinapaw, Mai JM},
  issn         = {1471-2458},
  journal      = {BMC PUBLIC HEALTH},
  keyword      = {CALIBRATION,YOUTH,CHILDREN,ADOLESCENT GIRLS,HEALTH},
  language     = {eng},
  pages        = {7},
  title        = {Study protocol of physical activity and sedentary behaviour measurement among schoolchildren by accelerometry: cross-sectional survey as part of the ENERGY-project},
  url          = {http://dx.doi.org/10.1186/1471-2458-11-182},
  volume       = {11},
  year         = {2011},
}

Chicago
Yildirim, Mine, Maïté Verloigne, Ilse De Bourdeaudhuij, Odysseas Androutsos, Yannis Manios, Regina Felso, Eva Kovacs, et al. 2011. “Study Protocol of Physical Activity and Sedentary Behaviour Measurement Among Schoolchildren by Accelerometry: Cross-sectional Survey as Part of the ENERGY-project.” Bmc Public Health 11.
APA
Yildirim, M., Verloigne, M., De Bourdeaudhuij, I., Androutsos, O., Manios, Y., Felso, R., Kovacs, E., et al. (2011). Study protocol of physical activity and sedentary behaviour measurement among schoolchildren by accelerometry: cross-sectional survey as part of the ENERGY-project. BMC PUBLIC HEALTH, 11.
Vancouver
1.
Yildirim M, Verloigne M, De Bourdeaudhuij I, Androutsos O, Manios Y, Felso R, et al. Study protocol of physical activity and sedentary behaviour measurement among schoolchildren by accelerometry: cross-sectional survey as part of the ENERGY-project. BMC PUBLIC HEALTH. 2011;11.
MLA
Yildirim, Mine, Maïté Verloigne, Ilse De Bourdeaudhuij, et al. “Study Protocol of Physical Activity and Sedentary Behaviour Measurement Among Schoolchildren by Accelerometry: Cross-sectional Survey as Part of the ENERGY-project.” BMC PUBLIC HEALTH 11 (2011): n. pag. Print.