20～59岁成年人无氧阈强度简易推测方法的研究

发布时间：2018-03-22 01:33

本文选题：简易方法　切入点：无氧阈强度　出处：《北京体育大学》2017年硕士论文　论文类型：学位论文

【摘要】：研究目的:无氧阈作为评价心肺耐力的重要指标之一具有其独特的优势,在大众科学健身指导中有广阔的应用前景。本研究将探索用20米折返跑和6分钟步行试验两种场地测试方法分别推测我国20~39岁和40~59岁成年人无氧阈强度的可行性,建立相应的回归模型并进行科学性验证。开发可用于指导大众科学健身的新指标,丰富场地测试的评价指标和应用前景,为确定个性化的运动强度提供科学指导依据,便于无氧阈指标在全民健身中的推广与应用,提升大众科学健身指导水平。研究方法:受试者共计631人。其中20~39岁受试者285人用于建立20米折返跑推测无氧阈强度的回归模型,另选30人用于回代检验;40~59岁受试者286人用于建立6分钟步行试验推测无氧阈强度的回归模型,另选30人用于回代检验。采集性别、年龄、运动情况等基本信息后对受试者进行身体形态机能测试,测试指标包括身高、体重、肺活量、握力;场地测试选用20米折返跑(20~39岁)和6分钟步行试验(40~59岁);用功率自行车进行递增负荷运动试验(GXT)并佩戴气体代谢分析仪采集气体代谢指标,用V-slope法计算无氧阈(VT)。利用SPSS软件,将VT作为因变量,场地测试成绩和其他相关指标作为自变量,采用逐步回归的方法建立相应的回归模型并进行检验。研究结果:(1)20米折返跑级别与VT中度相关,r=0.602(P0.01),20米折返跑推测20~39岁成年人无氧阈强度回归模型为:VT(L/min)=-0.266+0.055*级别+0.009*体重+0.087*运动情况+5.49*10-5*肺活量(R=0.786,调整R2=0.613);(2)6分钟步行试验距离与VT低度相关,r=0.249(P0.01),所建立的回归模型效度差。研究结论:(1)用20米折返跑推测20~39岁成年人无氧阈强度方法可行且模型预测效果较好;(2)用6分钟步行试验推测40~59岁成年人无氧阈强度方法不可行。
[Abstract]:Objective: as one of the important indexes to evaluate cardiopulmonary endurance, anaerobic threshold has its unique advantages. This study will explore the feasibility of estimating the anaerobic threshold strength of Chinese adults aged 20 ~ 39 years and 40 ~ 59 years old by using two field test methods, 20m reverse run and 6-minute walking test, respectively. Establish the corresponding regression model and carry on the scientific verification, develop the new index which can be used to guide the public scientific fitness, enrich the evaluation index and application prospect of the site test, and provide the scientific guidance basis for the determination of the individualized sports intensity. It is convenient for the popularization and application of anaerobic threshold index in national fitness, and to improve the level of scientific fitness guidance of the masses. The research method: the total number of participants was 631. 285 subjects aged 20 ~ 39 years were used to establish a regression model for estimating the anaerobic threshold strength of 20m reverse run. Another 30 subjects (4059 years old) were selected to establish a regression model of 6-minute walking test for estimating anaerobic threshold strength, and another 30 subjects were selected for re-generation test. Sex and age were collected. After the basic information of exercise, the body shape and function of the subjects were tested, including height, weight, vital capacity, grip strength; In the field test, 20m reentrant running (20- 39 years old) and 6-minute walking test (40 ~ 59 years old) were used to carry out incremental load exercise test (GXT) and to wear gas metabolism analyzer to collect gas metabolism index. The anaerobic threshold was calculated by V-slope method. SPSS software was used to calculate the anaerobic threshold. VT as dependent variable, site test results and other relevant indicators as independent variables, The regression model was established by stepwise regression method and tested. The results of the study were as follows: the level of 20 meters reentrant race was moderately correlated with VT. 0. 602 / P 0. 01 / 20 m reverse run. The regression model of anaerobic threshold strength of 20- 39 year old adults was: 1 / VTT Lmin / 0.266 0.055 * 0. 009 * body. The exercise condition of weight 0.087 * was 5.4910 ~ (-5) * vital capacity was 0.786, and the distance of 6-minute walking test was adjusted to the low VT level. The validity of the regression model was not good. Conclusion: 1) it is feasible to predict the anaerobic threshold strength of 2039 year old adults by using 20 meters reverse run. The method of estimating the anaerobic threshold strength of 4059 year old adults by 6-minute walking test is not feasible.
【学位授予单位】：北京体育大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G804.49

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