Document Detail

Translation of children's cycling into steps: the share of cycling in 10-year-olds' physical activity.
MedLine Citation:
PMID:  23324377     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Active travel has a potential to increase children's physical activity (PA). Pedometers offer a valid option to measure PA, but do not capture cycling activity. Children's self-reported cycling distances can be analyzed by the Geografic Information System (GIS).
AIM: To combine pedometry and GIS mapping to identify the relative amount of cycling in children's PA.
STUDY GROUP: Of all children in 4th grade (n=187) in Staffanstorp Sweden, 144 had valid pedometer data. Fifty-six children were non-cyclists while 88 children (32 boys, 47 girls, 9 gender unknown) reported at least one cycle journey.
METHODS: Cycle trips were entered into GIS and calculated to total cycling distance. Average length of the single distances cycled per day was 676 m (SD=534 m). A previously reported cycling speed (13.5 km/h) was used to calculate time spent cycling. Consequently distance=676 m, speed=13.5 km/h=13,500 m/3600 s=3.75 m/s and time=676m/3.75m/s=180.26 s=3 min. Expenditure of 4 and 5 metabolic equivalents (METs) has in children been reported equivalent to 122 and 127 steps/min, respectively. We estimated 4.7 METs (13.5 km/h) as 126 steps for every min of cycling (127-122=5×0.7=125.5).
RESULTS: The daily mean cycle distance was 676 m, on average 379 additional steps/day for cycling children (min. 21, max. 1385, SD=299) with no gender difference. Additional "steps" obtained by cycling corresponded to on average 3% of their PA.
CONCLUSION: The relative contribution of cycling in 10-year-old children's PA level is quite small and stable between children across different levels of activity levels, regardless of gender.
Anders Raustorp; Cecilia Boldemann; Fredrika Mårtensson; Catarina Sternudd; Maria Johansson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of adolescent medicine and health     Volume:  25     ISSN:  0334-0139     ISO Abbreviation:  Int J Adolesc Med Health     Publication Date:  2013  
Date Detail:
Created Date:  2013-06-06     Completed Date:  2013-09-26     Revised Date:  2014-07-31    
Medline Journal Info:
Nlm Unique ID:  8506960     Medline TA:  Int J Adolesc Med Health     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  171-6     Citation Subset:  IM    
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MeSH Terms
Actigraphy / methods*
Bicycling / physiology*
Geographic Information Systems*
Geographic Mapping
Motor Activity / physiology*
Physical Exertion*
Sex Factors
Time Factors
Walking / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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