共查询到18条相似文献，搜索用时 203 毫秒
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目的：测试服用和未服用β-受体阻断剂的心梗后患者（PMIP）在跑台运动中其功能、生理、临床及自我感觉方面的反应。方法：46名服用β-受体阻断剂的男性PMIP和55名未服用β-受体阻断剂的男性PMIP进行递增负荷运动实验，其间记录每级负荷时的摄氧量（VO2）、心率（HR）、血压和自我用力感觉（RPE），并持续监测12导联心电图（ECG）。结果：服用β-受体阻断荆的患者其安静时和运动中的HR、最大心率百分比（％HRmax）及心率血压乘积（RPP）显著低于未服用β-受体阻断剂的患者（P〈0．01）。运动中，服用β-受体阻断剂的患者有59％能够完成改良布鲁斯跑台方案的第Ⅳ级运动，而在未服用β-受体阻断剂的患者中仅有49％能完成这一负荷。两组在运动中各级别VO2、RPE及ST段下移无显著性差异。结论：由β受体阻断剂所致的HR降低并没有直接地影响到氧利用和代谢机能。 相似文献
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目的：利用心率指标为服用β-阻断剂和未服用β-阻断剂冠心病患者提供安全有效的康复运动强度。方法：35名服用β-阻断剂和40名未服
用β-阻断剂的男性冠心病患者在活动跑台上进行递增负荷运动试验,其间记录每级负荷时的摄氧量、心率、血乳酸和自我用力感觉,并持续监测12
导联心电图。利用Pearson线形回归建立峰值心率的预测公式,据此提供不同年龄服用β-阻断剂和未服用β-阻断剂冠心病患者的适宜运动强度。
结果：（1）服用β-阻断剂和未服用β-阻断剂冠心病患者的峰值心率（117.9次/min和138.1次/min）分别只达到“220-年龄”这一方程预测的最大心率
的75%和88%;（2）服用β-阻断剂和未服用β-阻断剂冠心病患者在其90%峰值心率时出现了心肌缺血和无氧代谢加强的征兆;（3）服用β-阻断剂和
未服用β-阻断剂冠心病患者的峰值心率预测公式分别为161.2-0.74年龄（r=0.78,P＜0.01）和194.1-0.88年龄（r=0.76,P＜0.01）;（4）本研究为不同
年龄的服用β-阻断剂和未服用β-阻断剂冠心病患者提供了适宜的上限运动强度和下限运动强度。结论：为了能达到训练效果最大化,损伤风险最
小化,服用β-阻断剂和未服用β-阻断剂冠心病患者的适宜运动强度应在其峰值心率的70%~85%之间。 相似文献
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心肌梗塞患者康复早期适宜运动强度探讨 总被引：2，自引：0，他引：2
急性期后心肌梗塞病人(PMIP)进行适宜运动有利于机能的恢复及降低疾病复发率。通过对101名男性PMIP渐增负荷实验,测定和评价心脏康复早期的PMIP运动中的生理反应,为制定PMIP康复期运动处方提供适宜运动强度。结果表明:(1)PMIP应通过改变生活方式特别是改变饮食结构及参加体育运动来降低其BC的浓度;(2)康复初期的PMIP运动强度可被允许达到themodifiedBrucetreadmillprotocol的第三级或RPE13;(3)这一建议强度适用于大多数PMIP,有较广泛的使用价值。 相似文献
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血液氧自由基、血乳酸、主观用力感觉、心率与运动强度相关性的研究 总被引：3，自引：0，他引：3
为探索抗氧化运动强度与监控指标的确定,采用CR2000RC氧自由基生化分析仪、LT 1710血乳酸测定仪、Borg(15、10)主观用力感觉等级量表、心率监测系统对受试者(n=9)从事300、600、900、1200、1500KPM/min不同强度踏车(Monark839E)运动(每级负荷运动5min)时血液氧自由基、血乳酸、主观用力感觉、心率的变化进行测定,并对其进行了相关性分析。结果表明:心率、RPE(15、10)与运动强度(KPM/min)之间呈现高度线性相关,r=0 959、0 923、0 918;血液氧自由基浓度与运动强度、心率、RPE之间的相关性较低,但其变化趋势类似于血乳酸的变化,低强度时(≤900KPM/min)虽运动强度增加但血液氧自由基浓度保持不变,当运动强度超过900KPM/min时,血液氧自由基浓度随运动强度增加而增加;RPE10与血乳酸之间的相关程度高于RPE15、心率、运动强度与血乳酸的相关程度。认为心率、RPE(15、10)可作为监控抗氧化运动强度的理想指标;血液氧自由基浓度不能作为运动强度的监控指标;从抗氧化运动角度而言,健身运动的强度应以血乳酸4mM、心率130beats/min、RPE15值11、RPE10值3左右为宜。 相似文献
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目的:探讨主观感觉疲劳量表(RPE)是否适用于中老年肥胖患者运动处方实施过程中运动强度的监控并分析影响RPE的相关因素。方法:215名中老年肥胖患者,进行递增负荷实验测试功能能力(F.C.,单位为代谢当量METs)和相应的RPE。以70%F.C.完成一次中等强度运动,同时记录患者的RPE值,比较用RPE推测的METs值和用递增负荷实验测得的METs值之间的差别。结果:受试者平均F.C.为6.1±1.8(METs),对应的RPE为15.2±1.6。RPE与BMI、性别、教育程度和抗心律失常药物有一定关联。70%F.C.为4.9±1.1(METs),而用RPE计算的预测值为5.6±1.2(METs),后者较前者高23.1%(P<0.01)。结论:在中老年肥胖患者实施运动处方的过程中,使用RPE会过高估计其实际运动强度;BMI、性别、教育程度和使用抗心律失常药物是RPE的影响变量。 相似文献
6.
主观感觉疲劳程度评定表(Ratings of Perceived Exertion,RPE)是Borg等人(1970)提出的一种推测运动强度(％VO2max)的方法。国外的许多报道已证实,RPE是推测运动强度的有效方法。在国内,杨锡让等对译成中文的RPE表的应 相似文献
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目的:通过分析心肌梗塞后患者(PMI患者)运动中功能、生理、知觉和临床的反应,检测他们运动终止的主要原因(RET),目的在于确定RET是否可被预测得出;方法:112名男性近期PMI患者在活动跑台上进行递增负荷运动实验,运动终止依美国运动医学会推荐的标准。随后,受试者依据不同的运动终止原因被细分为4个组(生理组,身体组,感觉组和临床组)。运动中记录主观用力感觉、血压、血乳酸浓度(BL)、摄氧量、心率和呼吸困难记分,并且连续监控12导联心电图。运动前测量血胆固醇浓度(BC)。结果显示,在运动能力方面,身体组和知觉组的运动终止原因优于临床组,但劣于生理组。患者的分布在BC为5.4mmol·L-1和BL为1.6mmol·L-1这两点出现了显著的组间差异(P<0.01或P<0.05)。在获得了安静状态下的BC和BL,病人的RET便可被预测出来,且预测具有较高的敏感性和特异性。结论:利用本研究得出的方法对RET进行预测,在心脏康复的运动实验和处方制定中,都可发挥出有益的作用。 相似文献
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少年男子武术套路运动员递增负荷运动中血氨、血乳酸、VE/VO2变化特征的研究 总被引：1，自引：0，他引：1
测定了少年男子武术套路运动员组(12人)和普通对照组(5人)在连续递增负荷的蹬车运动中血氨、血乳酸、VE／VO2指标的变化曲线。结果显示，两组人员在运动过程中血氨、血乳酸、VE／VO2指标随运动强度的增加有规律上升，运动初期上升速度缓慢，当运动负荷增加到100W以上，三种指标上升速度加剧。结果提示，少年男子武术套路运动员比对照组有较好的心肺机能，血氨、血乳酸、VE／VO2指标与运动强度有高度相关性，三种指标联合使用可以更精确地评定运动强度、机体的机能状态及训练程度，指导少年武术套路运动员的运动训练。 相似文献
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目的探讨相对运动强度和绝对运动强度对血清酶活性变化的影响。实验方法受试者为急性心肌梗塞康复病人(PMIP)和正常人(HS) ,实验前后测定了他们血清乳酸脱氢酶(L DH)、乳酸脱氢酶同工酶1(L DH- 1)、肌酸激酶(CK)、肌酸激酶亚单位MB(CK- MB)活性。结果两组受试者运动前酶的活性均无显著差异(P>0 .0 5 ) ;实验中,PMIP与HS的相对强度分别为最大心率的85 .1%、86 .0 % (P>0 .0 5 ) ,绝对强度分别为跑台等级的5 .3与6 .3(P<0 .0 5 ) ,PMIP与HS运动后即刻酶活性与运动前相比均有显著上升(P<0 .0 5 ) ,但两组间无显著差异(P>0 .0 5 ) ,2 4 h后HS组的酶活性基本恢复到运动前水平,但PMIP组仍高于运动前水平。结论运动后酶活性上升的幅度与运动所达到的相对强度有关;强度达85 % HRmax的运动能引起血清酶活性的升高,但此时L DH- 1/L DH和CK- MB/CK的比值与运动前相比无明显变化;如果PMIP的康复运动量等同于测试中的运动量,他们第2天似应停止活动以便能够得到充分的恢复。 相似文献
11.
The literature related to Borg's ratings of perceived exertion (RPE) scale has revealed inconsistencies about the strength of the relationship between ratings of perceived exertion and various physiological criterion measures, such as heart rate, blood lactate concentration, percent maximal oxygen uptake (%VO2max), oxygen uptake (VO2), ventilation and respiration rate. Using sex of participants, fitness, type of RPE scale used, type of exercise, exercise protocol, RPE mode and study quality, we undertook a meta-analysis to determine the strength of the relationship between RPE scores and the six aforementioned physiological measures. The weighted mean validity coefficients were 0.62 for heart rate, 0.57 for blood lactate, 0.64 for %VO2max 0.63 for VO2, 0.61 for ventilation and 0.72 for respiration rate. Analysis of moderator variables revealed that the following study features could account for the variation of results across studies: heart rate--fitness, type of exercise, protocol and RPE mode; blood lactate concentration--sex, RPE scale; VO2--sex, exercise type, RPE mode; ventilation--sex, RPE mode; respiration rate--exercise protocol, RPE mode. The highest correlations between ratings of perceived exertion and the various physiological criterion measures were found in the following conditions: when male participants (whose VO2 or ventilation was measured) were required to maximally exert themselves (measuring %VO2max or ventilation); when the exercise task was unusual [e.g. when participants were swimming, which is less common than walking or running (when heart rate, %VO2max and VO2 are measured)]; or when the 15-point RPE scale (measuring blood lactate concentration) was used. These findings suggest that although Borg's RPE scale has been shown to be a valid measure of exercise intensity, its validity may not be as high as previously thought (r = 0.80-0.90), except under certain conditions. 相似文献
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Alison Poe 《Research quarterly for exercise and sport》2013,84(2):260-268
Abstract The purpose of this study was to assess the effects of varied rest intervals, following a 5-min warm-up, upon subsequent ratings of perceived exertion, heart rate (HR), and state anxiety during an exercise period. The subjects were 16 male college students, each with predicted [Vdot]O2 max of at least 51 ml/kg/min ( = 54.4) as determined by the Åstrand bicycle test. Each subject was tested under four experimental conditions following a 5-min warm-up on a bicycle ergometer at 75% of HR max. Rest intervals of 1 min, 5 min, 10 min, and no rest preceded a progressively increasing 8-min exercise period on a bicycle ergometer. Ratings of perceived exertion (RPE), heart rate, and state anxiety were obtained at 1,000, 1,200, 1,400, and 1,600 KPM during each of the experimental conditions. An analysis of variance, four by four factorial design with repeated measures on both factors, was used to determine if significant differences existed between the experimental conditions for RPE and HR. An analysis of variance, treatment by subjects design, was used to determine if there were significant differences in state anxiety levels among the experimental conditions. Intraclass correlations revealed that reliability for HR and RPE was extremely high. No significant difference was found among the four experimental conditions for perceived exertion, heart rate, and state anxiety. RPE was found to be a good predictor of physiological strain as indicated by HR. 相似文献
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Alberto Soriano-Maldonado Jonatan R. Ruiz Inmaculada C. Álvarez-Gallardo Víctor Segura-Jiménez Alfredo Santalla Diego Munguía-Izquierdo 《Journal of sports sciences》2015,33(14):1515-1522
The present study aimed (1) to assess the validity and reliability of the Borg category-ratio (CR-10) scale for monitoring exercise intensity in women with fibromyalgia (FM) and (2) to examine whether women with FM can discriminate between perceived exertion and exercise-induced pain. Thirty-three women with FM performed two incremental treadmill tests (1 week separated). Heart rate, oxygen uptake, minute ventilation and respiratory quotient were measured. The ratings of perceived exertion (RPE: CR-10 scale) and exercise-induced pain were obtained at each workload. The Spearman’s correlation of RPE with the physiological responses ranged from 0.69 to 0.79. The regression models explained ~50% of the variability of the studied physiological responses. We found “perfect acceptable” agreement in 69% of the observations. Weighted Kappa was 0.66 (95% confidence interval [CI]: 0.59–0.72). There were differences between RPE and pain at workloads 3 (1.50; 95%CI: 0.85–2.16), 4 (2.10; 95%CI: 1.23–2.96), 5 (3.40; 95%CI: 1.29–5.51) and 6 (3.97; 95%CI: 1.61–6.33). The main findings of the present study suggest that the Borg CR-10 scale is valid and moderately reliable for monitoring exercise intensity in women with FM, and these patients were able to discriminate between exertion and exercise-induced pain. 相似文献
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The physiological responses of high (HF) and low fit (LF) individuals at given perceived exercise intensities were compared to ranges provided by the American College of Sports Medicine (ACSM). Participants were 7 LFand 8 HF men between the ages of 22 and 26 years. All participants performed a maximum oxygen uptake and lactate threshold test and two 15-min experimental runs in which they exercised at a constant perceived exercise intensity (RPE 13 and 17). The LF group exhibited significantly greater maximum oxygen uptake reserve ( % VO2R, p < .05) and velocity of lactate threshold (p < .01) values than HF at RPE 13 and 17. Both groups had significantly greater % VO2R and maximum heart rate values at RPE 13 in comparison with the ACSM ranges, using the highest value for the given range (p < or = .001). 相似文献
15.
The effect of time of day on ratings of perceived exertion (RPE) at various intensities of cycling exercise, both below and above the ventilatory threshold, was studied in 32 subjects, 18 to 35 years of age. The ventilatory threshold occurred at the same (p greater than .05) mean (+/- SD) work rate in the morning (110.6 +/- 27.0 watts) and in the afternoon (111.9 +/- 23.9 watts) and was perceived as equally strenuous (p greater than .05) in the morning (RPE = 13.8 +/- 2.4) and in the afternoon (RPE = 13.6 +/- 2.8). At intensities below the ventilatory threshold, RPE was the same (p greater than .05) in the morning and in the afternoon; above the ventilatory threshold, RPE was lower (p less than .05) in the morning. We conclude that, during incremental submaximal cycling exercise above the ventilatory threshold, a particular work rate is perceived as less strenuous in the morning than in the afternoon. About 20% of this difference in RPE is explained by lower ventilatory demands in the morning. 相似文献
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对不同运动负荷方案下的心率及RPE效度研究 总被引：1，自引：0，他引：1
目的:分析男子在不同运动负荷方案下,Borg的公式HR=RPEx10(心率=主观感觉运动负荷等级×10)估算出的心率是否可靠,验证RPE值是否与心率表现出高度相关,为提高RPE(主观感觉运动负荷评估表)评价的有效性与客观性提供一定依据。方法:测定7名在校体育学院男生的最大耗氧量,自行车递增负荷运动以及恒定负荷运动中各等级负荷末1 min心率、耗氧量、呼吸频率和RPE值等指标。结果:在递增负荷运动中,受试对象评定RPE等级的估算心率其特点呈现低负荷及中、高负荷时偏低,最大负荷时偏高的特点,并且,中、高负荷及最大负荷运动时RPE估算心率值与实测心率值有显著差异(P>0.05)。在恒定负荷运动中,受试对象的RPE估算心率值呈现整体偏低的特点。RPE与心率、呼吸频率,呼吸商、摄氧量等几项指标相关系数远远低于文献记录的相关系数0.80～0.90,且呼吸频率与RPE值的相关性高于心率。结论:公式HR=RPEx10得出的估算心率值,在男子进行递增负荷运动时可能不够准确,而在恒定负荷运动中估算效果更佳。在采用不同评价方式评价RPE时,估算心率与实际心率之差值幅度随评价时间延长而递增。呼吸频率与心率相比,在反映RPE指标时可能... 相似文献
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Abstract Two studies determined the effects of responding to questions on heart rate (HR), rating of perceived exertion (RPE), and time to voluntary exhaustion on a graded treadmill walking/running test in naive college students. The first study used 16 (8 female and 8 male) volunteers; each subject was tested both without talking and while responding to 3 questions during each exercise stage. The second study had independent groups (n = 10 females each): (1) no talking during the early exercise stages (two walking stages), but answering questions during the later (running) stages until exhaustion, and (2) answering questions during the walking stages, but not talking during the running stages. Differences between groups (.10 level) were determined by two-way ANOVA (talking/no talking; gender) and t test for independent groups, respectively. There were no gender/treatment interactions. Exercise tolerance, HR, and RPE were generally not affected by the tester asking subjects questions about subjects' physical activity habits, with the following exceptions: the first study found a lower HR response to light work when the subjects were responding to questions. In the second study, the subjects perceived the work to be harder with no talking during the second (walking) stage, and while talking during the third (running) stage. For subjects unaccustomed to exercise testing and not well known to the tester, it appears that the best test results occur when the tester talks to the subject during early stages of exercise, but not during moderate and heavy work. 相似文献