Research On Optimization Strategy Of Sports Park Based On Physical Activity Demand

Objective:Since the 21 st century,public health problems have gradually become the focus of attention of scholars from all walks of life,and chronic diseases caused by lack of physical activity have become the primary factor affecting public health.Park is an important place for residents’ leisure activities and an important carrier of physical activities.As an important part of urban parks,urban sports parks can not only provide green space,but also support colorful outdoor leisure activities,which play an important role in sports,leisure and social activities of urban residents and have great potential for promoting public health.Based on the theory of "social ecological model",this study aims to understand the present situation of park space facilities and users’ physical activities,explore the relationship between them,and analyze the elements of park space facilities that affect users’ physical activities,so as to provide some reference for optimizing parks and promoting physical activities.Methods:Three parks in Xiamen were selected as the research sites,and subjects were recruited at two common gates of the parks by means of convenient spot check.In this study,the demographic information of the subjects was collected by questionnaire survey;The ActigraphGT3 X accelerometer is used to collect the physical activity data of park users,and the GPS space tracker collects the spatial position and activity trajectory of users in the park,and links Actigraph withGPS data.Using GIS spatial analysis method to obtain the data of park space facilities,and then overlapping the link data of Actigraph and GPS with the map of park space facilities to calculate the instantaneous physical activity intensity of park users in different space facilities;Through mathematical statistics,this paper analyzes the difference between the present situation of physical activity and population variables of the elderly in the park,and the relationship between the park space facilities and physical activity with different intensities.Results:(1)The elderly who are active in the park stay in the park for an average of 59.89 minutes,and participate in moderate and high-intensity physical activities for 29.40 minutes,accounting for 50.97% of the total time.Men participated in moderate and high intensity physical activities for a longer time than women,and there was a significant difference(P < 0.05).The time for park users to participate in moderate and high-intensity physical activities gradually decreased with the increase of age,and there was a significant difference(P < 0.05).There is no significant difference between monthly income and physical activity in different education levels and different families in this study.(2)The road width is greater than 3.5m,the road width is less than 3.5 m,and the open space and green space are positively correlated with the number of physical activity points of static intensity.(3)Roads with a width greater than 3.5m,roads with a width less than 3.5 m,open spaces and green spaces are positively correlated with the points of low-intensity physical activity.(4)Roads with a width of more than 3.5m,roads with a width of less than 3.5 m,open spaces,green spaces and sports venues are positively correlated with the points of moderate and high intensity physical activity.Conclusions:(1)Gender factors in demographic characteristics have significant differences on the time of moderate and high-intensity physical activity,in which male users participate in moderate and high-intensity physical activity for longer than female users;Age factors have significant differences on moderate and high-intensity physical activities.With the increase of age,the time to participate in moderate and high-intensity physical activities gradually decreases.(2)Roads,open spaces and green spaces in park space facilities have significant positive effects on static intensity physical activity,low intensity physical activity and moderate and high intensity physical activity;Sports venues have a significant positive impact on moderate and high-intensity physical activities.