推测青少年最大摄氧量回归方程的研究

发布时间：2018-04-09 10:16

本文选题：青少年　切入点：最大摄氧量　出处：《山东体育学院》2017年硕士论文

【摘要】：研究目的:最大摄氧量是对心肺功能进行评价的重要指标,心肺功能的评价在青少年体质健康评价中占有很重要的地位,青少年正处于发育时期,他们的体质健康问题已经成为国家研究的重要问题。以往对最大摄氧量的众多研究中,涉及最多的是最大摄氧的测试方法以及推测中老年人的最大摄氧量回归方程的研究。关于通过直接测试方法推测出最大摄氧量回归方程的研究,特别是针对青少年的最大摄氧量回归方程的建立的研究甚少。因此,本研究基于前人的一些研究成果,选择用功率自行车直接测试法,建立了最大摄氧量的回归方程,为建立科学的、简便易行的评价青少年心肺功能的方法提供依据,为青少年体质评估和科学健身提供理论基础。研究方法:本研究随机选取12-14周岁青少年200名。本研究分为两个部分,第一阶段将200名受试者都进行身高、体重等静态指标的测量,在功率车上进行递增负荷实验并结合气体分析直接测出最大摄氧量和最大心率、负荷量等指标,对这些指标进行描述性统计;然后随机抽取150名受试者的数据,尝试加入性别、年龄、身高、体重、身体质量指数为自变量建立推测最大摄氧量的回归方程。第二阶段再将剩余50名受试者设作检验组,用于检验评估预测模型的预测效果。研究结果:(1)把最大摄氧量与年龄、性别和所测得的静态指标以及递增负荷中的安静心率、力竭心率、最大心率、负荷量等指标进行相关分析可知,性别、年龄、身高、体重、身体质量指数以及安静心率、力竭心率、最大心率、负荷量这几个指标和最大摄氧量之间的相关系数分别是性别r=0.492(p0.01),年龄r=0.211(p=0.01),身高r=0.591(p0.01),体重r=0.662(p0.01),身体质量指数r=0.488(p0.01),安静心率r=0.013(p0.05),力竭心率r=0.198(p0.05),最大心率r=0.240(p0.01),负荷量r=0.754(p0.01),由此得出性别、年龄、身高、体重、身体质量指数、力竭心率以及最大心率、负荷量与最大摄氧量相关具有高度显著性。(2)选择最大摄氧量为因变量,性别、年龄、身高、体重、身体质量指数、力竭心率、最大心率、负荷量为自变量,进行逐步回归分析,结果在这些指标中,性别、体重、身体质量指数、最大心率、负荷量五个指标进入回归方程,从而推测出青少年最大摄氧量的回归模型。(3)回代检验最大摄氧量实测值与预测值之间的相关系数等于0.983,显著性水平为0.000,明显小于0.01相关具有显著性,说明两者之间有明显的伴随关系。研究结论:本文建立的推测最大摄氧量的回归方程如下:最大摄氧量=-0.784+0.009*负荷量+0.021*体重+0.229*性别+0.004*最大心率+(-0.027)*BMI(R=0.884,R2=0.781,SEE=0.205,性别用代码表示:男=0,女=1)该方程推测出的最大摄氧量效果好,具有良好的应用前景。
[Abstract]:Objective: the maximum oxygen intake is an important index to evaluate cardiopulmonary function. The evaluation of cardiopulmonary function plays an important role in the evaluation of adolescents' physical health.Their physical health has become an important issue in national research.Among the previous studies on the maximal oxygen uptake, the most involved are the test methods of the maximum oxygen intake and the regression equation of the maximum oxygen uptake of the middle-aged and the elderly.There are few studies on the regression equation of maximal oxygen uptake by direct test, especially on the establishment of regression equation of maximum oxygen uptake for adolescents.Therefore, based on some previous research results, the regression equation of maximal oxygen intake is established by using the direct test method of power bicycle, which provides the basis for the establishment of a scientific and easy method to evaluate the cardiopulmonary function of adolescents.To provide a theoretical basis for physical assessment and scientific fitness of teenagers.Methods: 200 adolescents aged 12-14 years were randomly selected.This study is divided into two parts. In the first stage, 200 subjects were measured with static indexes such as height and weight, and the maximum oxygen uptake and heart rate were measured directly by means of incremental load test and gas analysis.The data of 150 subjects were collected randomly, and the regression equation of maximum oxygen uptake was established by adding sex, age, height, weight and body mass index as independent variables.In the second stage, the remaining 50 subjects were set up as test group to test and evaluate the prediction effect of the prediction model.The results showed that the maximal oxygen intake was correlated with age, sex, static index and the rest heart rate, exhaustion heart rate, maximum heart rate, load volume and so on in increasing load, sex, age, height, weight, etc.Body mass index and quiet heart rate, exhausted heart rate, maximum heart rate,Body weight, body mass index, exhaustion heart rate, maximal heart rate, load and maximal oxygen uptake were significantly correlated with the maximal oxygen uptake.) the maximal oxygen uptake was selected as dependent variables, sex, age, height, weight, body mass index, exhausted heart rate, and so on.The maximum heart rate and load were independent variables, and stepwise regression analysis was carried out. The results showed that gender, body weight, body mass index, maximum heart rate and load were the five indexes that entered the regression equation.Therefore, the regression model of maximal oxygen uptake of adolescents was deduced. The correlation coefficient between the measured value of maximal oxygen uptake and the predicted value was 0.983, and the significant level was 0.000, which was significantly less than 0.01.It shows that there is an obvious concomitant relationship between the two.The maximum oxygen intake is good.It has good application prospect.
【学位授予单位】：山东体育学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G804.2

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