Patterning of children's sedentary time at and away from school

Abbott, Rebecca A., Straker, Leon S. and Mathiassen, Svend Erik (2013) Patterning of children's sedentary time at and away from school. Obesity, 21 1: E131-E133. doi:10.1002/oby.20127

Author Abbott, Rebecca A.
Straker, Leon S.
Mathiassen, Svend Erik
Title Patterning of children's sedentary time at and away from school
Journal name Obesity   Check publisher's open access policy
ISSN 1930-739X
Publication date 2013-01
Year available 2012
Sub-type Article (original research)
DOI 10.1002/oby.20127
Volume 21
Issue 1
Start page E131
End page E133
Total pages 3
Place of publication Hoboken, NJ, United States
Publisher Wiley-Blackwell Publishing
Collection year 2013
Language eng
Formatted abstract
Objective: Sedentary behavior in children is positively associated with an increased risk of both obesity and insulin resistance. Children spend a considerable portion of their awake time in sedentary behavior; however, the pattern of accumulation is not known. Thus the objective of this study was to describe the patterning of sedentary behavior of children at and away from school.

Design and Methods: The patterns of sedentary time in a sample of 53 children (28 girls) aged 10-12 years during school-term time were examined. Children wore an accelerometer for 1 week. Total sedentary time, prolonged sequences (bouts) of sedentary time, and frequency of active interruptions to sedentary were examined on school days and weekends and within school time and non-school time on school days.

Results: The data did not support our hypothesis that children accumulated more sedentary time on school days when compared with weekend days (mean [SD]: 64.4% [5.3] vs. 64.9% [9.0], P = 0.686). However, when comparing school time with non-school time on school days, children accumulated more sedentary time at school (66.8% [7.3] vs. 62.4% [5.2], P < 0.001) and spent more time at school in sustained sedentary sequences, that is, uninterrupted sedentary time for 30 min or more (75.6 min [45.8] vs. 45.0 min [26.8], P < 0.002). The children also recorded less breaks per sedentary hour within school time when compared with non-school time (8.9 h−1 vs. 10.2 h−1, P < 0.001).

Conclusion: Reducing total sedentary time spent both in and out of school remains an important challenge. Interrupting sedentary time more often in the “working” (school) day could also reap important musculoskeletal and metabolic health rewards for children.
Keyword Physical-activity
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Accepted manuscript online. Article first published online: 12 MAR 2013.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Human Movement and Nutrition Sciences Publications
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Created: Sun, 06 Jan 2013, 14:12:35 EST by Deborah Noon on behalf of School of Human Movement and Nutrition Sciences