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01.12.2015 | Research article | Ausgabe 1/2015 Open Access

BMC Public Health 1/2015

Temporal patterns of physical activity and sedentary behavior in 10–14 year-old children on weekdays

Zeitschrift:
BMC Public Health > Ausgabe 1/2015
Autoren:
Stijn De Baere, Johan Lefevre, Kristine De Martelaer, Renaat Philippaerts, Jan Seghers
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​s12889-015-2093-7) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

JL, KDM and RP conceived the study. SDB was responsible for data collection, data processing and writing of the manuscript. SDB, JL and JS contributed to the statistical analysis. JS, JL, RP and KDM critically revised the manuscript for intellectual content and writing. All authors read and approved the final manuscript.

Abstract

Background

An important but often ignored aspect of physical activity (PA) and sedentary behavior (SB) is the chronological succession of activities, or temporal pattern. The main purposes of this study were (1) to investigate when certain types of PA and SB compete against each other during the course of the day and (2) compare intensity- and domain-specific activity levels during different day-segments.

Methods

The study sample consists of 211 children aged 10–14, recruited from 15 primary and 15 secondary schools. PA was assessed combining the SenseWear Mini Armband (SWM) with an electronic activity diary. The intensity- and domain-specific temporal patterns were plotted and PA differences between different day-segments (i.e., morning, school, early evening and late evening) were examined using repeated-measures ANCOVA models.

Results

Physical activity level (PAL) was highest during the early evening (2.51 METSWM) and school hours (2.49 METSWM); the late evening segment was significantly less active (2.21 METSWM) and showed the highest proportion of sedentary time (54 % of total time-use). Throughout the different day-segments, several domains of PA and SB competed with each other. During the critical early-evening segment, screentime (12 % of time-use) and homework (10 %) were dominant compared to activity domains of sports (4 %) and active leisure (3 %). The domain of active travel competed directly with motor travel during the morning (5 % and 6 % respectively) and early-evening segment (both 8 %).

Conclusions

Throughout the day, different aspects of PA and SB go in competition with each other, especially during the time period immediately after school. Detailed information on the temporal patterns of PA and SB of children could help health professionals to develop more effective PA interventions and promotion strategies. By making adaptations to the typical day schedule of children (e.g., through the introduction of extra-curricular PA after school hours), their daily activity levels might improve.
Zusatzmaterial
Additional file 1: Temporal pattern of PA and SB in primary school boys. Occurrences of the different intensity levels (Fig. 1a) and behavioral domains (Fig. 1b) as a function of time on regular weekdays in primary school boys. (PDF 394 kb)
Additional file 2: Temporal pattern of PA and SB in primary school girls. Occurrences of the different intensity levels (Fig. 1a) and behavioral domains (Fig. 1b) as a function of time on regular weekdays in primary school girls. (PDF 393 kb)
Additional file 3: Temporal pattern of PA and SB in secondary school boys. Occurrences of the different intensity levels (Fig. 1a) and behavioral domains (Fig. 1b) as a function of time on regular weekdays in secondary school boys. (PDF 410 kb)
Additional file 4: Temporal pattern of PA and SB in secondary school girls. Occurrences of the different intensity levels (Fig. 1a) and behavioral domains (Fig. 1b) as a function of time on regular weekdays in secondary school girls. (PDF 411 kb)
Additional file 5: Supplementary figure on the temporal pattern of behavioral domains. Occurrences of all separate behavioral domains of PA and SB as a function of time on regular weekdays (in color + larger format). CADL: common activities of daily life. (PDF 231 kb)
12889_2015_2093_MOESM5_ESM.pdf
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