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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Free-living physical activity and energy expenditure of rural children and adolescents in the Nandi region of Kenya
Annals of Human Biology, Volume 40, No. 4, Year 2013
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Description
Purpose: To examine the relationship between physical activity and energy demands in children and adolescents with highly active lifestyles. Methods: Physical activity patterns of 30 rural Kenyan children and adolescents (14 ± 1 years, mean ± SD) with median body mass index (BMI) z-score = -1.06 [-3.29-0.67] median [range] were assessed by accelerometry over 1 week. Daily energy expenditure (DEE), activity-induced energy expenditure (AEE) and physical activity level (PAL) were simultaneously determined using doubly-labelled water (DLW). Active commuting to school was assessed by global positioning system. Results: Mean DEE, AEE and PAL were 12.2 ± 3.4, 5.7 ± 3.0 MJ/day and 2.3 ± 0.6, respectively. A model combining body mass, average accelerometer counts per minute and time in light activities predicted 45% of the variance in DEE (p < 0.05) with a standard error of DEE estimate of 2.7 MJ/day. Furthermore, AEE accounted for ∼47% of DEE. Distance to school was not related to variation in DEE, AEE or PAL and there was no association between active commuting and adiposity. Conclusion: High physical activity levels were associated with much higher levels of energy expenditure than observed in Western societies. These results oppose the concept of physical activity being stable and constrained in humans. © 2013 Informa UK Ltd.
Authors & Co-Authors
Ojiambo, Robert M.
United Kingdom, Glasgow
University of Glasgow
Kenya, Eldoret
Moi University
Gibson, Alexander R.
United Kingdom, Glasgow
University of Glasgow
Konstabel, Kenn
United Kingdom, Glasgow
University of Glasgow
Estonia, Tallinn
Tervise Arengu Instituut
Estonia, Tartu
Tartu Ülikool
Lieberman, Daniel E.
United States, Cambridge
Harvard University
Speakman, John Roger
United Kingdom, Aberdeen
University of Aberdeen
Reilly, John J.
United Kingdom, Glasgow
University of Strathclyde
Pitsiladis, Yannis Paul
United Kingdom, Glasgow
University of Glasgow
Kenya, Eldoret
Moi University
Statistics
Citations: 25
Authors: 7
Affiliations: 7
Identifiers
Doi:
10.3109/03014460.2013.775344
e-ISSN:
14645033
Research Areas
Environmental
Maternal And Child Health
Study Locations
Kenya