Research

Self-report vs. objectively assessed physical activity: Which is right for public health?


Reference:

Loney, T., Standage, M., Sebire, S. J., Thompson, D. and Cumming, S. P., 2011. Self-report vs. objectively assessed physical activity: Which is right for public health? Journal of Physical Activity & Health, 8 (1), pp. 62-70.

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http://journals.humankinetics.com/jpah-back-issues/jpah-volume-8-issue-1-january/self-report-vs-objectively-assessed-physical-activity-which-is-right-for-public-health

Abstract

Background: To examine the agreement between self-reported and objectively assessed physical activity (PA) according to current public health recommendations. Methods: One-hundred and fourteen British University students wore a combined accelerometer and heart rate monitor (Actiheart; AHR) to estimate 24-hour energy expenditure over 7 consecutive days. Data were extracted based on population-based MET-levels recommended to improve and maintain health. On day 8, participants were randomly assigned to complete either the short-form International Physical Activity Questionnaire (IPAQ) or the Leisure-Time Exercise Questionnaire (LTEQ). Estimates of duration (IPAQ; N = 46) and frequency (LTEQ; N = 41) of PA were compared with those recorded by the AHR. Results: Bland-Altman analysis showed the mean bias between the IPAQ and AHR to be small for moderate-intensity and total PA, however the 95% limits of agreement (LOA) were wide. The mean number of moderate bouts of PA estimated by the LTEQ was similar to those derived by the AHR but the 95% LOA between the 2 measures were large. Conclusions: Although self-report questionnaires may provide an approximation of PA at a population level, they may not determine whether an individual is participating in the type, intensity, and amount of PA advocated in current public health recommendations.

Details

Item Type Articles
CreatorsLoney, T., Standage, M., Sebire, S. J., Thompson, D. and Cumming, S. P.
Uncontrolled Keywordsaccelerometry, limits of agreement, heart rate monitoring, method-comparison
DepartmentsFaculty of Humanities & Social Sciences > Health
RefereedYes
StatusPublished
ID Code17668

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