Accuracy of Self-Reported Physical Activity Levels in Obese Adolescents
Joint Authors
Elliott, Sarah A.
Baxter, Kimberley A.
Davies, Peter S. W.
Truby, Helen
Source
Journal of Nutrition and Metabolism
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-26
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Introduction.
Self-reported measures of habitual physical activity rely completely on the respondent’s ability to provide accurate information on their own physical activity behaviours.
Our aim was to investigate if obese adolescents could accurately report their physical activity levels (PAL) using self-reported diaries.
Methods.
Total energy expenditure (TEE) was measured using doubly labelled water (DLW) and resting energy expenditure (REE) was measured via indirect calorimetry.
Activity energy expenditure (AEE) and PAL values were derived from measured TEE and REE.
Self-reported, four-day activity diaries were used to calculate daily MET values and averaged to give an estimated PAL value (ePAL).
Results.
Twenty-two obese adolescents, mean age 13.2 ± 1.8 years, mean BMI 31.3 ± 4.6 kg/m2, completed the study.
No significant differences between mean measured and estimated PAL values were observed ( 1.37 ± 0.13 versus 1.40 ± 0.34 , P = 0.74 ).
Bland Altman analysis illustrated a significant relationship ( r = - 0 .
76 , P < 0.05 ) between the two methods; thus the bias was not consistent across a range of physical activity levels, with the more inactive overreporting their physical activity.
Conclusion.
At an individual level, obese adolescents are unlikely to be able to provide an accurate estimation of their own activity.
American Psychological Association (APA)
Elliott, Sarah A.& Baxter, Kimberley A.& Davies, Peter S. W.& Truby, Helen. 2014. Accuracy of Self-Reported Physical Activity Levels in Obese Adolescents. Journal of Nutrition and Metabolism،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1042169
Modern Language Association (MLA)
Elliott, Sarah A.…[et al.]. Accuracy of Self-Reported Physical Activity Levels in Obese Adolescents. Journal of Nutrition and Metabolism No. 2014 (Dec. 2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1042169
American Medical Association (AMA)
Elliott, Sarah A.& Baxter, Kimberley A.& Davies, Peter S. W.& Truby, Helen. Accuracy of Self-Reported Physical Activity Levels in Obese Adolescents. Journal of Nutrition and Metabolism. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1042169
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1042169