The Study On Outdoor Activity Time Of Rural Population In Different Latitude Sites Of Sanya And Shenyang

Purposes1.Through the study of individual outdoor activity time, we calculated and compared the daily average outdoor activity time, annual average outdoor activity time, and the cumulative outdoor activity time of different ages, genders, and pre-school, compulsory education, farming period in Sanya and Shenyang. Obtained at different background the trend of outdoor activity time in population.2.Through the development of computing software,calculated the distribution of the outdoor activity time during the day in Sanya and Shenyang.Methods1.Epidemiological survey:through the cluster sampling survey method, surveyed for the farmers nearby Sanya,Hainan Province and Shenyang,Liaoning Province. Acquired to individual natural conditions, curriculum vitae and professional situation, and life history stages of the outdoor activities during the day.2.Calculated the individual outdoor activity time:established the annual individual UV exposure time formula,got the individual annual UV exposure time, and further calculated the daily average, the annual average and the cumulative outdoor activity time, the relationship between different ages and different genders using t test.3. Acquire to the trend of the people of the same life history(preschool,compulsory education, and farming period) in different times in outdoor time.4.Calculated the distribution of the outdoor activity time during the day:the day (6:00-18:30) time was divided into half-hour units of 25 time periods, limited the maximum and minimum range of each time, calculated the distribution of the outdoor activity time during the day in the population. Results1.Through the calculating formula,we obtained different age groups, gender, and pre-school, compulsory education, and farming during the day, the average annual and cumulative time for outdoor activity time in Sanya and Shenyang.2.Different age groups, gender, and pre-school, compulsory education, and farming during the day, the average annual and cumulative time for outdoor activity time in Sanya was significantly greater than Shenyang. The survey showed that the orders average daily outdoor activity time was 4.72 hours in Sanya, significantly longer than the 2.80 hours in Shenyang.3.Through the outdoor activity study about the same life history(the pre-school, compulsory education, and farming study) in different age in the two groups, showed that the age older, the outdoor activity time more.4.The distribution of the outdoor activity time during the day was bimodal distribution in Sanya and Shenyang, shown that the peak period should be the focus of the good UV protection period;and the outdoor activity time in Sanya was higher than Shenyang in each period.Conclusions1.By comparing the daily average outdoor activity time, annual average outdoor activity time, and the cumulative outdoor activity time of different ages between Sanya and Shenyang, the outdoor activity time in Sanya is significantly higher than Shenyang.2.Through the outdoor activity study about the same life history in different age in the two groups, during the pre-school, compulsory education, and farming study,we find that the age older, the outdoor activity time more.3.The distribution of the outdoor activity time during the day in the different times is bimodal distribution in Sanya and Shenyang, and the outdoor activities of all time in Sanya is higher than Shenyang.