TY  - JOUR
A1  - Koebnick, Corinna
A1  - Wagner, K.
A1  - Thielecke, F.
A1  - Moeseneder, Jutta
A1  - Hoehne, A.
A1  - Franke, A.
A1  - Meyer, H.
A1  - Garcia, Ada
A1  - Trippo, U.
A1  - Zunft, Hans-Joachim Franz
T1  - Validation of a simplified physical activity record by doubly labeled water technique
N2  - INTRODUCTION: For obtaining reliable information about physical activity in epidemiological studies, validated and easy-to-use instruments are required. Therefore, a new simplified physical activity record based on 15-min recording intervals was developed and validated. SUBJECTS: Nonobese volunteers (n = 31). MEASUREMENTS: Physical activity was recorded over a 7-day period without detailed instructions. Energy expenditure was calculated (EEsPAR) and compared to energy expenditure measured by doubly labelled water technique (EEDLW). RESULTS: A good agreement between EEsPAR (12.1 +/ 3.0) and EEDLW (11.7 +/- 3.3) with a mean difference of 0.33 +/- 1.55 MJ (r = 0.880, P < 0.001) was observed. The absolute difference between EEsPAR and EEDLW was <10% in 65% of the subjects. The difference between EEsPAR and EEDLW was independent of gender, age, body weight, and body mass index. A weak positive association between the difference and total body fat was observed (r = 0.618, P < 0.001), suggesting a slight tendency to overestimate EEsPAR with increasing total body fat. CONCLUSION: The new simplified physical activity protocol needs no detailed instructions, provides valid estimates of physical activity in nonobese free-living adults and can be used in epidemiological studies to assess total daily energy expenditure and physical activity level
Y1  - 2005
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/13716
SN  - 0307-0565
ER  -