Validation of a simplified physical activity record by doubly labeled water technique

Koebnick, C., Wagner, K., Thielecke, F., Moeseneder, J., Hoehne, A., Franke, A., Meyer, H., Garcia Trinidad, A.L., Trippo, U. and Zunft, H.J. (2005) Validation of a simplified physical activity record by doubly labeled water technique. International Journal of Obesity, 29(3), pp. 302-309.

Abstract

Abstract 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 (EE(sPAR)) and compared to energy expenditure measured by doubly labelled water technique (EE(DLW)). RESULTS: A good agreement between EE(sPAR) (12.1+/-3.0) and EE(DLW) (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 EE(sPAR) and EE(DLW) was < 10% in 65% of the subjects. The difference between EE(sPAR) and EE(DLW) 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 EE(sPAR) 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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Garcia Trinidad, Dr Antonio
• Authors: Koebnick, C., Wagner, K., Thielecke, F., Moeseneder, J., Hoehne, A., Franke, A., Meyer, H., Garcia Trinidad, A.L., Trippo, U., and Zunft, H.J.
• College/School: College of Medical Veterinary and Life Sciences
• Journal Name: International Journal of Obesity
• Publisher: Nature Publishing Group
• ISSN: 0307-0565