Assessment of the physical activity level with two questions: validation with doubly labeled water.

G. Johansson; K.R. Westerterp

doi:10.1038/ijo.2008.42

Assessment of the physical activity level with two questions: validation with doubly labeled water.

G. Johansson^*, K.R. Westerterp

^*Corresponding author for this work

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Abstract

Objective:To validate a two-question questionnaire on physical activity with the doubly labeled water (DLW) method.Design:Cross-sectional study.Subjects:Nine volunteers, age 33-75 years, with a mean body mass index (BMI) (kg m(-2)) of 27.4.Measurements:A questionnaire with one question on physical activity at work and one question on physical activity during leisure time. The answers were converted into a PAL (physical activity level=energy expenditure/basal metabolic rate) value, which was validated with the DLW method.Results:The mean values (s.d.) of PAL for the questionnaire and DLW measurements were 1.7 (0.1) and 1.7 (0.1), respectively, with a mean difference of 0.004 (0.172).Conclusions:The results were promising to the extent that they could be used in large-scale epidemiological studies.International Journal of Obesity advance online publication, 8 April 2008; doi:10.1038/ijo.2008.42.

Original language	English
Pages (from-to)	1031-1033
Journal	International Journal of Obesity
Volume	32
Issue number	6
DOIs	https://doi.org/10.1038/ijo.2008.42
Publication status	Published - 1 Jan 2008

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title = "Assessment of the physical activity level with two questions: validation with doubly labeled water.",

abstract = "Objective:To validate a two-question questionnaire on physical activity with the doubly labeled water (DLW) method.Design:Cross-sectional study.Subjects:Nine volunteers, age 33-75 years, with a mean body mass index (BMI) (kg m(-2)) of 27.4.Measurements:A questionnaire with one question on physical activity at work and one question on physical activity during leisure time. The answers were converted into a PAL (physical activity level=energy expenditure/basal metabolic rate) value, which was validated with the DLW method.Results:The mean values (s.d.) of PAL for the questionnaire and DLW measurements were 1.7 (0.1) and 1.7 (0.1), respectively, with a mean difference of 0.004 (0.172).Conclusions:The results were promising to the extent that they could be used in large-scale epidemiological studies.International Journal of Obesity advance online publication, 8 April 2008; doi:10.1038/ijo.2008.42.",

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Assessment of the physical activity level with two questions: validation with doubly labeled water.

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