| 运动前后脉搏声和肺音信号的同步拾取与特征研究 |
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| 引用本文： | 吕萍,钱铁群,闵一建.运动前后脉搏声和肺音信号的同步拾取与特征研究[J].广州体育学院学报,2005,25(5):123-125,48. |
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| 作者姓名： | 吕萍 钱铁群 闵一建 |
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| 作者单位： | [1]浙江大学教育学院体育部,杭州310027 [2]陕西师范大学应用声学研究所,西安710062 |
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| 基金项目： | 浙江省体育总局资助课题. |
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| 摘 要： | 目的：人们对脉搏声和肺音的研究已取得了可喜的研究成果，但对运动员这样一个特殊群体的研究未见报道。方法：运用无创声学检测方法，在现场对运动前后的脉搏声和肺音进行同步拾取，对所测得数据加汉宁窗进行功率谱分析。结果：安静时脉搏声和肺音的主峰频率和频率范围与身高、体重之间并不相关，但与运动成绩却有一定的关联。同样的脉跳次数，其脉搏声的主峰频率和频率范围是不一样的；运动后的脉搏声的频率范围向低频和高频两端延伸，而肺音的频率范围则向高频端偏移，主峰频率降低。不同运动项目之间存在着较大差异。因此，我们认为在运动训练中用声谱信号检测具有无创、快速、准确的特点，可作为监测和评价运动员心肺功能的方法之一。
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| 关 键 词： | 运动前后 脉搏声 肺音 信号拾取 功率谱 |
| 文章编号： | 1007-323X（2005）05-0123-04 |
| 收稿时间： | 05 26 2005 12:00AM |
| 修稿时间： | 2005-05-26 |
Synchronous recording and characteristic study of the pulse- sound and lung-sound signals before and after exercises |
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| LU Ping,QIAN Tie-qun,MIN Yi-jian.Synchronous recording and characteristic study of the pulse- sound and lung-sound signals before and after exercises[J].Journal of Guangzhou Physical Education Institute,2005,25(5):123-125,48. |
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| Authors: | LU Ping QIAN Tie-qun MIN Yi-jian |
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| Institution: | LU Ping 1 QIAN Tie-qun 1 MIN Yi-jian 2 |
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| Abstract: | Objective:great achievements have been made in the pulse-sound and lung-sound researches,however,such study carried on the objectives of athletes was seldom reported.Methods:By applying the non-invasive acoustic examination,this paper takes synchronous recording of pulse sound and lung-sound signals before and after exercises,and further makes a power spectrum analysis on the Hanning window.Results:before exercises,the primary peak frequency of pulse-sound and lung-sound has little relation with the stature and weight of the objective,but relating to its athletic performance.For the same pulse times,their pulse-sound primary frequency and frequency range are different.After exercises,the lung-sound frequency range extends to the both low-frequency and high-frequency sides,however,the pulse-sound frequency range only extends to the high frequency end,with decreased primary frequency.The results from different sport events diversity a lot.Therefore,we characterize the acoustic examination as a non-invasive,rapid and accurate method,which can be developed as one of the most important ways to monitor and evaluate the athletes'cardio-pulmonary functions. |
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| Keywords: | before and after exercises pulse sound lung sound signal recording power spectrum |
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