Development, reliability and validity of a physical activity questionnaire for estimating energy expenditure in Greek adults

Publication date: Available online 14 April 2016 Source:Science & Sports Author(s): S.A. Kavouras, M.I. Maraki, M. Kollia, A. Gioxari, L.T. Jansen, L.S. Sidossis Objectives The purpose of this study was to develop and assess the reliability and validity of a single page, physical activity questionnaire, for estimation of energy expenditure in Greek adults. Equipment and methods The Athens Physical Activity Questionnaire (APAQ) was designed to assess energy expenditure of the previous 7 days, in Greek language. Sixty subjects (40 women, age: 20.9±1.7 years, BMI: 21.4±2.7kg/m2; 20 men, age: 22.4±3.1 years, BMI: 23.5±3.1kg/m2) completed the APAQ on two separate occasions, 7 to 14 days apart, to assess internal consistency and test-retest reliability, using Cronbach alpha and intraclass correlation coefficients (ICC), respectively. Additionally, 79 more subjects (42 women, age: 26.6±6.1 years, BMI: 20.6±1.8kg/m2; 37 men, age: 30.0±6.1 years, BMI: 25.1±2.2kg/m2) wore a triaxial accelerometer for 7 consecutive days, and then completed the APAQ to assess validity, using correlation and Bland-Altman analysis. Results ICC were 0.95, 0.78, 0.58 and 0.85 (P <0.001) for total, occupational, home and recreational EE, respectively. Total energy expenditure derived from APAQ was significantly correlated (r =0.839, P <0.001) to accelerometer measures. Bland-Altman analysis showed a good agreement between the two methods with most ...
Source: Science and Sports - Category: Sports Medicine Source Type: research