Reliability and validity measures of the international physical activity questionnaire long lithuanian version (IPAQ-LT)

The aim of work - to measure the reliability and validity of the International physical activity questionnaire long Lithuanian version (IPAQ-LT) and analyze received physical activity results in various aspects. The objectives of work: 1. To estimate the reliability and validity of the International physical activity questionnaire long Lithuanian version (IPAQ-LT). 2. To estimate relation between the subjective (self-evaluation and IPAQ-LT questionnaire long version) and objective (accelerometery) physical activity assessment. 3. To analyze received physical activity results by age. 4. To analyze received physical activity results by gender. 5. To analyze received physical activity results by BMI. 6. To analyze received physical activity results by state of health. 7. To analyze received physical activity results by social status. The object of work – IPAQ-LT long version questionnaire and the reliability and validity evaluation of it. The reliability and validity of the study method may vary, so it is important to access it in the comparative studies. The study involved 92 18 - 69 year old subjects, 63 women and 29 men. In our work we used the direct (accelerometery) and indirect (IPAQ-LT questionnaire long version) methods to assess the total weekly physical activity and compare the findings with each other. Each study participant the first International physical activity questionnaire long Lithuanian versions filled when completed physical activity estimation with accelerometer (physical activity was remembered of the last week - the first case of the questionnaire filling and another - after a week when physical activity estimation was completed with accelerometer (was asked „to remember“ physical activity that was done for the last week - the second case of the questionnaire filling). Analysing the IPAQ-LT long version the first and second questionnaire filling cases received the total weekly physical activity data can maintain that between the first and second questionnaire filling cases exists moderate correlation. Evaluating the data of accelerometer and comparing them with the questionnaire data (the first and second guestionnaire filling cases of the total weekly physical activity) between the accelerometer and the the first guestionnaire filling case there is a very small (negligible) correlation, between the second guestionnaires filling case - a small correliation. The study results suggest that the majority of volunteers in the study of their physical activity tended to be overestimated. Comparing the IPAQ-LT questionnaire long version received the total weekly physical activity results with the accelerometer received results observed in a significant difference: an objective assessment of patients observed significantly lower levels of physical activity than the subjective evaluation of physical activity assessment. Age, gender, BMI, health status and social status did not have affect for total weekly physical activity level