Study on the Spatial Distribution Pattern of Physical Health in China

Physical health is the material basis of a country's social and economic development, so it is of great practical significance to study the spatial pattern of national physical fitness and its influencing factors in order to improve national physical fitness. The purpose of this study is to provide a new method for the study of regional differences in physical health, and provide a scientific basis for decision-making to improve national physical fitness in different regions of China and formulate relevant policies.In this study, 31 provinces(municipalities, autonomous regions) of China's national physical fitness comprehensive index in 2015 were selected as the measurement index, and the spatial pattern of national physical fitness level and its influencing factors were empirically analyzed by combining rough set theory with genetic algorithm. It was found that: 1) the national physical fitness level was high in the East and low in the west in China; 2) economic level was the main factor affecting the physical fitness of a region's nationals, and the high average GDP per capita in East and South China also have higher comprehensive levels of national physical fitness; 3) the poor physical health in Northwest China was caused by many factors, and comprehensive methods should be carried out to improve their physical health; 4) natural factors such as the number of hours of sunshine and the average annual humidity throughout the year were important factors affecting physical health. The attribute reduction inductive learning method based on rough set theory and genetic algorithm is a good choice for the study of the influencing factors of national physique. On the basis of protecting the environment, speeding up the economic development, improving the level of public health services, strengthening education and training, improving the construction of fitness facilities, etc., we can improve people's physical health in various regions, so as to build a well-off society in an all-round way.