To Evaluate The Reliability And Validity Of The Internationl Physical Activity Questionnaires (Refined Format ) Of Middle Aged And The Elderly People

Research purposes:The research have shown that regular physical activity has many benefits to middle aged and the elderly people, including decreasing the underload syndrome and obesity, reducing the diabetes and coronary heart disease and other chronic diseases as well as improving mental health. Therefore, the purposes of this thesis are:(1)to design a scientific and reasonable "the Internationl Physical activity Questionnaires(Refined Format)" based on semi-open questionnaires and expert consultation;(2) to evaluate the reliability and validity of"the Internationl Physical activity Questionnaires(Refined Format)";(3) to design the computer evaluation system of "the Internationl Physical activity Questionnaires(Refined Format)"of middle aged and the elderly people";(4) to be designed to help middle aged and the elderly people grasp energy consumption reasonably in physical activity, so as to provide the scientific diagnostic techniques in promoting the physical health development of middle aged and the elderly people.Research methods:According to the interviews with experts and 162 semi-open questionnaires for middle aged and the elderly people near Beijing University of Physical Education, the first draft of "the Internationl Physical activity Questionnaires(Refined Format)of middle aged and the elderly people" is designed. 70 middle aged and the elderly people near the Beijing University of Physical Education have been selected to fill in the "the Internationl Physical activity Questionnaires(Refined Format)" of middle aged and the elderly people" and required to wear accelerometers for a week. After that, they need to fill in this Refined Format again. And then the collected data are statistically analyzed.Based on the analyzed result, the "he Internationl Physical activity Questionnaires(Refined Format) of middle aged and the elderly people" are amended. Then the second draft is made. Finally, 300 middle aged and the eldly people in Beijing, Changsha and Linfen are selected as research objects to study its reliability and validity again.Research results:1.Research and omplete the "the Internationl Physical activity Questionnaires(Refined Format) of middle aged and the elderly people". The test resuls of reliability and validity of this Refined Format are: The reliability is good after retest, which can achieve the requirements of making a refined format; the validity of refined format is up to 0.563, which can meet the basic requirements of a refined format.2.Successfully design the "Refined Format of middle aged and the elderly people" software. This system uses the C #(C Sharp)programming language and SQL Server2005 of Microsoft VisualStudio2010 to develop. This software can provide an important reference to the design of physical activity intervention programs of the elderly in our country, and can help scientifically guide the elderly to have reasonable physical activity and physical exercise, which can effectively prevent a variety of health risks.Research conclusions:1.“The Internationl Physical activity Questionnaires(Refined Format)” suitable for use in people middle aged and the elderly people,is not only simple and can achieve good application effect,for the elderly fitness activities to provide scientific theoretical basis.2.“The Internationl Physical activity Questionnaires(Refined Format)”interval of 2 weeks retest reliability is very good.3.“The Internationl Physical activity Questionnaires(Refined Format)”has good validity.4.Successfully design the "Refined Format of middle aged and the elderly people" software,can accurately calculate the energy consumption of middle aged and the elderly people physical activity levels, mild physical activity,low energy physical activity,intensity physical activity,high intensity physical activity energy consumption as well as the total energy consumption.“The Internationl Physical activity Questionnaires(Refined Format)” to be designed to help middle aged and the elderly people grasp energy consumption reasonably in physical activity, promoting the physical health development of middle aged and the elderly people, provide the scientific diagnostic techniques.