次极量负荷试验评价中老年人心肺功能方法的研究

发布时间：2018-04-28 21:00

本文选题：心肺运动试验 + 评价　；参考：《北京体育大学》2012年硕士论文

【摘要】：研究目的：心肺功能对中老年人的健康非常重要,本研究以中老年人为研究对象,在了解中老年人心肺功能的基础上,探讨6分钟步行试验作为评价中老年人心肺功能方法的可行性,并建立以6分钟步行试验推测中老年人最大心肺功能的模型,为中老年人锻炼提供的理论和方法学依据。研究对象与方法：本研究招募社区40-65岁中老年人,通过个人疾病史及健康习惯问卷、体力活动前问卷、医学健康检查建立危险分层,筛选健康受试者82人,随机分为建模组76人,回代检验组6人。所有受试者签署知情同意书,进行形态指标测量后,先按照起始负荷25W,每2分钟递增25W,50转/分的方案进行极量负荷试验,检测每位受试者极量运动时的峰值摄氧量和无氧阈。恢复一周后,再进行6分钟步行试验,测量每位受试者6分钟的步行距离、做功、峰值摄氧量。极量负荷试验和6分钟步行试验均采用便携式心肺分析仪,实时监测气体代谢指标,以获得峰值摄氧量。心肺运动试验时,受试者进行动态血压、12导心电监测。分析两次试验中峰值摄氧量、距离与性别、年龄的变化情况；极量心肺运动试验中峰值摄氧量与6分钟步行试验距离、做功等指标的相关性。研究结果：1.峰值摄氧量：男性女性,差异具有统计学意义；2.6分钟步行试验中40-49岁与60岁以上组之间峰值摄氧量存在统计学意义的差异,心肺运动试验中峰值摄氧量年龄组别之间的差异不具有显著性；3.6分钟步行试验与心肺运动试验的峰值摄氧量差异具有显著性意义,但相关性较高；4.心肺运动试验中的峰值摄氧量与6分钟步行试验中做功、受试者性别、腰臀比存在线性相关。结论：(1)6分钟步行试验是次极量的运动方式,可以有效反映中老年人最大心肺功能；(2)6分钟步行试验推测峰值摄氧量模型：VO2peak(1/min)=3.339-0.452×性别+1.932×6分钟步行试验做功×10-6-1.819×腰臀比[注：性别：男=1,女=2；6分钟步行试验做功=9.8×体重(kg)×6分钟步行试验距离(m)；腰臀比=腰围(cm)/臀围(cm)；R=0.703,校正R2=0.469,SEE=0.29)]
[Abstract]:Objective: cardiopulmonary function is very important to the health of middle-aged and old people. To explore the feasibility of 6-minute walking test as a method to evaluate cardiopulmonary function in middle-aged and old people, and to establish a model of estimating maximal cardiopulmonary function by 6-minute walking test, which provides theoretical and methodological basis for middle-aged and elderly people to exercise. Subjects and methods: in this study, we recruited 40 to 65 years old people in the community. The risk stratification was established by the questionnaire of individual disease history and health habits, the questionnaire before physical activity, and the medical health examination. 82 healthy subjects were selected. They were randomly divided into modeling group (n = 76) and retrospective test group (n = 6). After all the subjects signed the informed consent form index was measured and the maximum load test was carried out according to the initial load of 25 WW and the increase of 25 W / min every 2 minutes. The peak oxygen uptake and anaerobic threshold were measured during the maximal motion of each subject. After a week of recovery, a 6-minute walking test was conducted to measure the walking distance, work and peak oxygen uptake of each participant. A portable cardiopulmonary analyzer was used in both extreme load test and 6-minute walking test to monitor gas metabolism in real time in order to obtain peak oxygen uptake. During the cardiopulmonary exercise test, the subjects were monitored by 12-lead ECG with ambulatory blood pressure. The changes of peak oxygen uptake, distance, sex and age in two trials were analyzed, and the correlation between peak oxygen uptake and 6-minute walking distance and work in extreme cardiopulmonary exercise test was analyzed. The result of the study was: 1. Peak oxygen uptake: male and female, there was significant difference in peak oxygen uptake between 40-49 years old and over 60 years old group in 2.6 minutes walking test. There was no significant difference in peak oxygen uptake between age groups in cardiopulmonary exercise test. There was no significant difference in peak oxygen uptake between walking test and cardiopulmonary exercise test, but the correlation was high. The peak oxygen uptake in the cardiopulmonary exercise test was linearly correlated with the work done in the 6-minute walking test, the sex of the subjects, and the waist-to-hip ratio. Conclusion the 6-minute walking test is a submaximal exercise pattern. It can effectively reflect the maximal cardiopulmonary function of middle-aged and old people in 6-minute walking test and estimate the peak oxygen uptake model: VO _ 2 peak-1 / min ~ (-1 / min) 3.339-0.452 脳 gender 1.932 脳 6 min walking test 脳 10-6-1.819 脳 waist-to-hip ratio [note: sex: male 1, female 26 minutes walking test 9.8 脳 body weight] WHR = waist-to-hip ratio = waist-to-hip ratio = waistline / hip-circumference, ru 0.703, corrected R2 + 0.469m SEEN 0.29]
【学位授予单位】：北京体育大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：G804.2

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