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前言在进行湖北省儿童少年心脏血管系统改进台阶试验方法及其评定标准研究过程中,我们除测定了该课题所必需的登台阶后(以下简称负荷后)第2分钟前30秒的脉搏频率(以下简称脉率)外,还测定了登台阶前安静时(以下简称负荷前)和负荷后第1分钟的脉率和血压,以了解改进台阶试验前、后脉率、血压的变化,观察改进台阶试验负荷对心脏血管系统机能的影响。并通过对收缩压/脉率心功能指数的分析讨论及其评定标准的制定,对湖北儿 相似文献
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心率(也称脉率)是用来测定体育课运动负荷的一种简便方法。有人研究提出平均脉率130次/分,能获得最大的吸氧量和心输出量,对心肺功能影响最好。据日本研究,学生脉率每分钟在130次以下,练习无精打采,没有生气;每分钟在130-150次之间,练习的兴奋性高、持续时间长、锻炼效果好;每分钟在150次以上持续练习2-3分钟就出现疲劳。我国有人研究提出体育课学生脉率在130-140次/分之间最为适合。为了避免体育课的运动量过大或过小,教师必须教会学生摸脉搏、数脉率。当学生练习到一定程度后,就可利用练习的间隙由教师统一时间,让学生数1… 相似文献
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<正> 一、前言运动状态下的脉率变化情况,常作为体育科研、运动训练和体育教学中,观察人体生理、心理、运动负荷等的参数。测量人体处于运动状态下的脉率,不同于静止状态下的直接 相似文献
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李柱宏(2007)年度训练周期安排特征及训练负荷分析 总被引:1,自引:0,他引:1
对我国优秀马拉松运动员李柱宏2007年度训练周期特征进行了分析,得出以下结论:第一大周期训练负荷量和负荷强度达到训练计划要求,使运动员达到最佳竞技状态,比赛取得了理想成绩;第二大周期准备期和竞赛期训练中,专项耐力负荷量相对偏低(准备期专项耐力负荷量占总负荷量的43.31%,竞赛期专项耐力负荷量占总负荷量的47.15%),造成比赛成绩不理想;第三大周期训练在总结第二大周期失利的基础上,加大了专项耐力和混氧训练比例,在比赛中效果明显,取得了较好成绩. 相似文献
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对三级跳远运动员的训练负荷量分析及关键性训练因素进行剖析 ,不同级的运动员的训练负荷量的结构中 ,一般训练负荷量和发展性负荷量在所占的比重存在不同的比例。关键性训练因素对三级跳远运动员成绩所起的作用有训练负荷因素、身体机能因素、教练因素占有主导作用 相似文献
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运动负荷的计算方法及其运用 总被引:2,自引:0,他引:2
董国珍 《沈阳体育学院学报》1988,(1)
运动负荷是影响运动成绩的重要因素,是控制训练过程的重要内容,是训练监督的重要指标。通常把运动负荷视为由负荷量和负荷强度两大因素构成的。对运动成绩来说,负荷量是基础,负荷强度是关键。负荷量与负荷强度是相互联系、相互影响、相互对立的。从训练全过程讲,欲想提高负荷强度,负荷量就应相对地减少;欲想增加负荷量,负荷强度就应相对地降低,两者呈相反波浪变动。这一变化是有规律的,一般地讲,训练准备期是以增加负荷量为主,竞赛期是以增大负荷强度为主,到休 相似文献
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阐述了初中生体育课负荷量与强度安排的依据和原则,结合教学实际,提出了初中生体育课负荷量与强度安排的方法。 相似文献
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The purpose of this study was to investigate the acute effect of cigarette smoking on cardiac autonomic function in young adult smokers during dynamic exercise. Fourteen healthy young smokers (21.4 ± 3.4 years) performed peak and submaximal exercise protocols under control and smoking conditions. Resting and submaximal beat-to-beat R-R series were recorded and spectrally decomposed using the fast Fourier transformation. Smoking resulted in a significant decrease in work time, VO(2peak) and peak O(2) pulse (P < 0.05). Heart rate increased at rest and during submaximal exercise after smoking (P < 0.05). The raw high frequency and low frequency power were significantly reduced by smoking, both at rest and during exercise (P < 0.05). The low to high frequency ratio was higher after smoking (P < 0.05). The normalised low frequency power was also significantly increased by smoking, but only at rest (P < 0.05). These data demonstrate that the tachycardic effect elicited by smoking is accompanied by acute changes in heart rate spectral components both at rest and during exercise. Therefore, the cardiac autonomic control is altered by smoking not only at rest, but also during exercise, resulting in reduced vagal modulation and increased sympathetic dominance. 相似文献
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L. W. Olds Dr. P.H. 《Research quarterly for exercise and sport》2013,84(2):254-265
Abstract This methodology study was to determine if testing subjects on a specific day of four phases of the menstrual cycle would yield results which would be comparable to testing subjects on each day of the corresponding phases of the cycle and if the test results of one cycle would be comparable to those of two consecutive cycles. A statistical comparison of the mean scores for a specific day of each phase of the cycle and the mean scores for the average of all days for each phase of the cycle was made for pulse rate before exercise, pulse rate after exercise, and the difference in the pulse rate before and after exercise, or pulse rate increase. None of the t ratios obtained were significant. A statistical comparison was also made for the mean scores for two mentrual cycles for pulse rate before and after exercise, pulse rate increases, weight, and temperature. None of the t ratios were significant. It was concluded that testing subjects on a specific day of each of four phases of one menstrual cycle would be a satisfactory testing procedure. 相似文献
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Brian J. Sharkey 《Research quarterly for exercise and sport》2013,84(4):520-531
Abstract Five subjects were tested three times in each of three static and three phasic work tests involving leg extensions in the semi-reclining position. Oxygen uptake, net oxygen consumption, ventilation rate, pulse rate, and systolic and diastolic blood pressures were consistently higher in phasic work than in static effort with a comparable resistance. The patterns of systolic and diastolic blood pressure and pulse rate response and recovery did not seem to differ in the two modes of work. While the ventilation rate—oxygen uptake relationship was similar in both forms of effort, the pulse rate—oxygen uptake relationship differed in that the static pulse exceeded the phasic rate at a comparable level of oxygen uptake. 相似文献
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Madge Phillips 《Research quarterly for exercise and sport》2013,84(2):327-333
Abstract A random group of 24 college women was tested during four phases of the menstrual cycle to determine if the cycle had an effect on pulse rate and blood pressure before and after exercise. Analysis of variance data indicated that fluctuations in pulse rate and blood pressure before and after exercise could not be attributed to the menstrual cycle. 相似文献
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Abstract Members of the Santa Barbara basketball team were tested periodically during and after the 1957–58 season of play. The changes in physical conditioning were estimated using a step test. During this period of time the blood pressure and pulse wave measurements were studied to investigate the effects of basketball conditioning on these measurements. The resting and postexercise systolic blood pressure measurements decreased significantly during training. These changes were significant after 16 weeks, while the pulse rate changes indicated conditioning had changed in six weeks. During de-training these measurements reversed and made significant changes in ten weeks. The pulse wave measurements more closely followed those of the step test. They changed significantly in six weeks, leveled off, and finally reversed to the starting level during de-training. 相似文献
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Abstract The purpose of this study was to investigate the acute effect of cigarette smoking on cardiac autonomic function in young adult smokers during dynamic exercise. Fourteen healthy young smokers (21.4 ± 3.4 years) performed peak and submaximal exercise protocols under control and smoking conditions. Resting and submaximal beat-to-beat R-R series were recorded and spectrally decomposed using the fast Fourier transformation. Smoking resulted in a significant decrease in work time, [Vdot]O2peak and peak O2 pulse (P < 0.05). Heart rate increased at rest and during submaximal exercise after smoking (P < 0.05). The raw high frequency and low frequency power were significantly reduced by smoking, both at rest and during exercise (P < 0.05). The low to high frequency ratio was higher after smoking (P < 0.05). The normalised low frequency power was also significantly increased by smoking, but only at rest (P < 0.05). These data demonstrate that the tachycardic effect elicited by smoking is accompanied by acute changes in heart rate spectral components both at rest and during exercise. Therefore, the cardiac autonomic control is altered by smoking not only at rest, but also during exercise, resulting in reduced vagal modulation and increased sympathetic dominance. 相似文献
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通过对一些机能指标的测试和教学观察 ,如 :运动员的晨脉、运动恢复心率、CK值、尿素氮等机能指标和观察运动员的睡眠、食欲与自主疲劳感 ,发现运动机能水平下降时 ,游泳运动员的晨脉一般超过 5次 ,早晨CK值平均超过 4 5 0IU ,尿素氮值平均在 8 5mol/L以上 ;训练时的运动心率恢复值小于2 0 % ;入睡慢 ,食欲差 ,运动员自主疲劳感在中度以上。 相似文献
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北京市成年人身体机能状况的调查研究 总被引:2,自引:0,他引:2
本文通过对北京市成年人体质测试,进行人体机能分析研究。测试对象为北京市市民,男子18至59岁,女子18至54岁,男子共3806人,女子共3568人。对测试中的机能指标——脉搏、血压、肺活量、台阶指数进行了分析,脉搏、肺活量和肺活量/体重的变化是随年龄的增长而下降,下降过程有起伏;收缩压、舒张压和台阶指数的变化是随年龄的增长而上升,上升过程中有起伏。这些指标的变化规律有阶段性,以下降的幅度、速度和T检验的结果划分为31~35岁,41~45岁,51~55岁3个阶段,不同指标各阶段下降情况与锻炼身体有很大关系。成年人18~20岁组与1985年中学生(18岁组)进行比较,发现成年人18~20岁的指标结果与中学生差异很大,成年人18~20岁组的机能状况不如18岁组的中学生。 相似文献