A Study On The Correlation Between The Core Strength Level Of Female College Students And The Level Of Physical Health

Objective: In recent years, the core strength in the field of competitive sports and rehabilitation has been widely concerned, to improve the strength of the core muscle group is one of the main objectives of physical training experts and coaches training.But the research on the core strength in the initial stage of exploration has not formed a study on theory and evaluation system, and the core strength training is more common in professional athletes,the study of school sports and mass sports is relatively small, lacking of data and quantitative support. The research on the core strength and physical health of college students is much less. Core muscle strength is playing an important role in stabilizing the body’s center of gravity and transmitting of upper and lower extremity strength in the body movements. Physical health test is an important component of school education evaluation system, and it is also an important means to promote students to actively exercise to improve the level of physical health, but the study found that college students’ physical health level showed a trend of gradual decline, female is more obvious. This study attempts to provide relevant data and analysis by testing female college students’ the level of core strength and physical health level,to explore the correlation degree between the level of core strength and physical health. The core strength indexes were the independent variables, the physical fitness was the dependent variable , do regression equation is to predict the level of physical health and further reveal the quantitative relationship between the two variables. Analysis of the overall regression model between the core strength of the indicators and the physical health indexes is to determine sensitive indicators that affect the level of physical health level.Research Methods: This paper is completed on basic of literature research, the concept of core strength, characteristics, training methods and evaluation methods were clearly confirmed, at the same time, clarifying the internal relationship between the core strength and the level of physical health. The indexes of core strength evaluation were determined through expert interviews and questionnaire investigation after listing a variety of testing methods of core strength. The test objects include 121 freshmen and 125 sophomores from Nanjing Normal University College of Zhong Bei 246 girls. According to the "national student physical health test standard (revised 2014)", the height, weight, vital capacity, sitting flexion, standing long jump,50 meters,800 meters run and sit-up 8 indicators is to test the level of their physical health, the eight level bridge, graded back bridge, supine both ends up, supine two side, solid ball throwing back and solid ball throwing side six indexes to test the level of core strength. Using independent samples T test,Spearman rank correlation and multiple regression methods is to explore the degree of correlation between the level of core strength and physical health of female college students, establishing the function model between the two variables to reveal the functional relationship between the two variables.Results: The level of core strength and physical health is not obvious between two grade female students; the correlation between the indicators of the core strength and the indicators of the physical health is existing, the eight level bridge is correlated with sit-up,50 meters,800 meters, vital capacity, BMI,graded back bridge is correlated with 50 meters, 800 meters, sit-up, vital capacity and standing long jump.And supine both ends up is related to the sit-up,50 meters,800 meters,vital capacity,standing long jump and sitting flexion. And supine two side is correlated with sit-up,50 meters,800 meters, vital capacity, BMI and standing long jump. And solid ball throwing back is correlated with standing long jump, sitting flexion, 50 meters,800 meters and sit-up. And solid ball throwing left is correlated with sitting flexion,50 meters,800 meters and standing long jump. And solid ball throwing right is correlated with sitting flexion,50 meters and sit-up. But the above correlation is mostly central and low, first of all this may be related to the individual and test attitude of the test object, followed by the level of physical health level is not only by the size of the core strength of the size of the decision, but by a variety of factors of interaction* The core stability of the strength prediction model is superior to the core strength of the endurance and the core explosive force prediction model; The eight level bridge,graded back bridge, supine both ends up and solid ball throwing back are sensitive indicators of physical health level, The degree of contribution of the total score of health was equally large, The normalization coefficient beta is all 0.2, and the significance level of the four indicators was less than 0.05, which was statistically significant.