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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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主观用力感觉在预测心脏康复适宜运动度中的作用 总被引：1，自引：0，他引：1
目的:探讨主观用力感觉(RPE)在预测急性期后心梗患者(PMIP)对运动的生理和临床反应中的作用,这将有利于适宜运动强度的制定。方法:46名服用β阻断剂的男性PMIP(年龄60.9±7.5岁)5,5名未服用β阻断剂的男性PMIP(年龄63.6±7.3岁)在活动跑台上进行递增负荷实验,终止实验的标准依美国运动医学会的指南(ACSM)或病人的主观要求。运动中每30 s测量一次摄氧量(VO2)和通气量(VE)、每3 min记录一次心率(HR),血乳酸(BL)和主观用力感觉(RPE),并连续监测12导心电图。结果:两组病人在VO2,BL,VE和ST段降低与RPE的关系方面无显著差异(P>0.05)。然而,在运动实验过程中,两组病人在心率方面有显著差异(P<0.01)。无论是服用还是未服用β阻断剂的PMIP,RPE达到13都是其运动中有氧代谢向无氧代谢过渡的转折点。结论:基于以上结果,建议PMIP在运动心脏康复中感觉到"稍费力"时即不应再加大运动强度。 相似文献
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张晓英 《山东体育学院学报》2009,25(8)
目的:探讨渐进性抗阻力量训练对普通人群力量、最大摄氧量和最大有氧功率的影响.方法:30名普通健康成年男性进行10周的渐进性力量训练,力量训练前后测试实验对象的力量和有氧能力.结果:力量训练后,实验对象的最大蹲起负重(Loadmax)、60%最大蹲起负重下的的蹲跳功率(P 60)、最大摄氧量、相对最大摄氧量以及最大工作功率都有了显著性增长.与训练前相比,在最大摄氧量测试过程中,随着工作功率的提高,通气量呈下降的趋势,摄氧量呈上升的趋势,氧差有增大的趋势.结论:10周的渐进性抗阻力量训练,使实验对象动力性最大力量、动力性爆发力、最大摄氧量、相对最大摄氧量以及最大工作功率都有显著性提高;实验对象有氧能力的提高与肌肉用氧能力改善有关. 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
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任占兵 《山东体育学院学报》2013,29(3)
为了解恢复期摄氧量与跑步经济性之间的关系,先通过实验测量恢复期摄氧量与跑步经济性的结果,然后通过统计分析得出二者之间的关系,试图建立用自变量恢复期摄氧量推测因变量跑步经济性的回归方程.该研究选择12名定向越野和中长跑项目学生运动员作为受试对象,采用MAX-Ⅱ运动心肺功能测试系统测量摄氧量,让受试者在10 km/h的速度下跑5分钟,最后2分钟的摄氧量的平均值作为跑步经济性,恢复期摄氧量选择恢复期前10秒的摄氧量.研究发现,自变量恢复期前10秒的摄氧量测量结果为(33.84±3.12) ml·kg-1·min-1,跑步经济性的测量结果为(33.45±3.24)ml·kg-1·min-1,自变量恢复期前10秒的摄氧量与因变量跑步经济性之间差异不具有显著性(P＞0.05),二者之间的相关系数为0.92(P＜0.01),基于恢复期前10秒的摄氧量推测跑步经济性的回归方程为:y =3.297 +0.893x.研究表明,恢复期前10秒的摄氧量与跑步经济性之间高度相关,可以利用运动后恢复期前10秒的摄氧量推测跑步经济性. 相似文献
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研究目的:研究穿着不同压力下肢紧身服对跑步过程中摄氧量以及运动后血乳酸恢复的影响。研究方法:选择北京体育大学12名健康男性长跑爱好者作为研究对象。受试者进行3次递增负荷最大摄氧量测试,在测试期间随机穿戴不同压力的下肢紧身服和普通运动长裤进行测试。最大摄氧量测试采用METAMAX 3B心肺功能测试系统进行测试,根据Bruce测试方案每3 min递增负荷,直至受试者运动至力竭。分别在安静时、运动后1 min、4 min、7 min和10 min 5个时刻测量血乳酸指标。采用Simi Aktisys 3D实验设备进行肌肉震动测试。采用一般线性模型的重复测量统计学方法比较3种情况下各项指标的差异。研究结果:运动过程中,高压力下肢紧身服在第二负荷上的耗氧量显著减小(P=0.047),但在其他负荷的耗氧量以及最大摄氧量没有出现显著性的差异。不同压力下肢紧身服对乳酸最大值以及乳酸消除速率没有产生显著性的影响。不同压力下肢紧身服均能够显著减小股四头肌、股二头肌和腓肠肌的肌肉震动(P=0.017、P=0.012、P=0.028),并且压力较大的下肢紧身服对肌肉的固定效果更好。研究结论:不同压力下肢紧身服对一次性高强度跑步运动过程中的最大摄氧量没有显著性的影响,但有可能在一定运动强度范围内减少运动过程中氧气的消耗。下肢紧身服对一次性高强度跑步运动后乳酸恢复没有显著性的影响。下肢紧身服能够降低肌肉的额外震动,并且压力越大,效果越好。 相似文献
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最大摄氧量和无氧阈在运动训练中的应用 总被引：1，自引：0，他引：1
耐力性项目运动员有氧能力的水平,可以采用测定运动员最大摄氧量和无氧阈的方法加以评价。1 最大摄氧量及其应用最大摄氧量(VO2max)是指人体在进行有大量肌肉群参加的有力竭性运动中,当氧运输系统各个环 相似文献
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黎涌明 《武汉体育学院学报》2015,(3):63-69
摄氧量从安静或空载负荷运动状态进入指定强度运动状态,以及运动后恢复状态的动态过程被称为摄氧量动力学。随着对人体运动生物学特征研究的不断深入,摄氧量动力学越来越受到关注。为了系统地了解摄氧量动力学研究的发展历程,全面地认识这一指标在人体运动中的重要意义,检索了历年来摄氧量动力学的相关文献,分别从历史回顾、生理学特征、测试和计算方法,以及对运动训练和大众健身的启示四个方面对摄氧量动力学进行了综述。对摄氧量动力学的研究始于20世纪初人类对运动过程中气体代谢的探索,但是对摄氧量动力学较为全面的认识直到20世纪90年代才得以实现。外呼吸摄氧量动力学被证明能够真实反映肌肉摄氧量动力学。摄氧量动力学与运动强度有关,当恒定负荷强度<乳酸阈时,摄氧量在<3min的时间达到稳定状态;当恒定负荷强度>乳酸阈时,摄氧量的稳定状态延迟或消失,并且在快速增长之后出现一个慢速增长阶段。不管强度如何,对摄氧量动力学的计算都是基于摄氧量动力学的三个阶段。摄氧量动力学的研究推动了对能量代谢由结果向过程的转变,为运动能力的提高提供了新的思路。未来对摄氧量动力学的研究应着重于不同运动方式的摄氧量动力学特征、不同训练方法对摄氧量动力学的影响,以及运用新技术进一步求证肌纤维与摄氧量动力学的关系。 相似文献
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观察了我院田径队短跑组运动员服用甲壳素(C hitin)前后,机体在激烈运动后血乳酸浓度、血细胞形态、超氧化物歧化酶及最大摄氧量的变化。实验表明:通过服用甲壳素短跑运动员在运动过程中血乳酸浓度有显著的降低;成熟红细胞形态有更圆润、保满的趋势;最大摄氧量有提高;谷胱甘肽有所升高、乳酸脱氢酶、丙二醛有所下降,运动员的运动能力有所提高。 相似文献
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肥胖男青年对两种强度有氧运动的生理代谢反应比较 总被引：4，自引：1，他引：3
目的:分析两种强度有氧运动过程中机体能源物质动员的特点,为制定减肥运动处方提供理论依据。方法:8名无系统运动训练史的非继发性肥胖男青年进行40%和65%V。O2max强度有氧运动,监测运动过程中受试者HR、血压及RPE等生理指标和血清GLU、TG、FFA及GH等生化指标的变化。结果:40%V。O2max有氧运动过程中HR、收缩压、RPE及血清GLU水平显著低于(舒张压显著高于)65%V。O2max有氧运动;血清GH水平有降低趋势;血清TG、FFA水平显著高于65%V。O2max有氧运动。40%V。O2max有氧运动过程中,脂肪动员程度较大,随着运动强度的增加,机体糖代谢加强,脂代谢减弱。结论:肥胖者宜采用40%V。O2max有氧运动进行减肥健身锻炼,不仅能更大程度地动员脂肪供能,而且相对不易疲劳,主观体力感觉也易于接受。 相似文献
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Luana L. Cabral Fábio Y. Nakamura Joice M. F. Stefanello Luiz C. V. Pessoa Bruno P. C. Smirmaul Gleber Pereira 《Measurement in physical education and exercise science》2020,24(2):103-114
ABSTRACTThe aims of this study were to perform the cross-cultural adaptation of the Borg Rating of Perceived Exertion (RPE) 6–20 Scale to Brazilian Portuguese language and to start testing its validity and reliability. After performing the cross-cultural adaptation of the Scale, concurrent and discriminative validity, and reliability were determined on a treadmill in young (18–30 years) and older adult women (60–75 years). Considering young and older adult women, RPE presented high and moderate positive correlation with heart rate and high and low positive correlation with oxygen consumption, respectively. Older adult women presented RPE (11 ± 2) significantly higher than young ones (8 ± 1) exercising at the same absolute intensity. Intraclass coefficient correlation was excellent for RPE to young and older adult women. The Scale presented concurrent validity only to young adult women, whereas it presented discriminative validity between such groups of women. Moreover, the scale is reliable to young and older adult women. 相似文献
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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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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
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In this study, we examined the time course of changes in running economy following a 30-min downhill (-15%) run at 70% peak aerobic power (VO2peak). Ten young men performed level running at 65, 75, and 85% VO2peak (5 min for each intensity) before, immediately after, and 1 - 5 days after the downhill run, at which times oxygen consumption (VO2), minute ventilation, the respiratory exchange ratio (RER), heart rate, ratings of perceived exertion (RPE), and blood lactate concentration were measured. Stride length, stride frequency, and range of motion of the ankle, knee, and hip joints during the level runs were analysed using high-speed (120-Hz) video images. Downhill running induced reductions (7 - 21%, P < 0.05) in maximal isometric strength of the knee extensors, three- to six-fold increases in plasma creatine kinase activity and myoglobin concentration, and muscle soreness for 4 days after the downhill run. Oxygen consumption increased (4 - 7%, P < 0.05) immediately to 3 days after downhill running. There were also increases (P < 0.05) in heart rate, minute ventilation, RER, RPE, blood lactate concentration, and stride frequency, as well as reductions in stride length and range of motion of the ankle and knee. The results suggest that changes in running form and compromised muscle function due to muscle damage contribute to the reduction in running economy for 3 days after downhill running. 相似文献
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Effects of a verbal and visual feedback system on running technique, perceived exertion and running economy in female novice runners 总被引：1，自引：0，他引：1
The purpose of this study was to determine the effects of a verbal and visual feedback system on running technique, ratings of perceived exertion (RPE), and running economy. Twenty-two female novice runners were randomly assigned to experimental (n = 11) and control (n = 11) groups. The experimental subjects received verbal and visual feedback concerning their running technique prior to and during each training run. Training involved 15 20-min treadmill running sessions over a 5-week period. The control group adhered to the same training routine but did not receive feedback concerning their running technique. High-speed (100 Hz) photography was used to collect biomechanical data. A submaximal oxygen consumption test and Borg's RPE scale were used to collect data concerning running economy and perceived exertion, respectively. Statistical analysis using ANCOVA revealed that the proposed feedback system had a significant (P less than 0.01) effect on the experimental group's running technique by affecting the following desired changes relative to the control group: greater relative stride lengths, shorter support time, greater ankle dorsiflexion during support and greater knee flexion during support and non-support. There were no significant differences between the groups in submaximal VO2 or RPE. The results of this study suggest that verbal and visual feedback are effective means of eliciting modifications in running style in female novice runners. The link between modifications in running style and improvements in running economy and perceived exertion remains unclear. 相似文献
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Richard A. Schmidt 《Research quarterly for exercise and sport》2013,84(1):122-140
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 LF and 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 ≤ .001). 相似文献
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The purpose of this study was to determine the effects of a verbal and visual feedback system on running technique, ratings of perceived exertion (RPE), and running economy. Twenty‐two female novice runners were randomly assigned to experimental (n = 11) and control (n = 11) groups. The experimental subjects received verbal and visual feedback concerning their running technique prior to and during each training run. Training involved 15 20‐min treadmill running sessions over a 5‐week period. The control group adhered to the same training routine but did not receive feedback concerning their running technique. High‐speed (100 Hz) photography was used to collect biomechanical data. A submaximal oxygen consumption test and Borg's RPE scale were used to collect data concerning running economy and perceived exertion, respectively. Statistical analysis using ANCOVA revealed that the proposed feedback system had a significant (P < 0.01) effect on the experimental group's running technique by affecting the following desired changes relative to the control group: greater relative stride lengths, shorter support time, greater ankle dorsiflexion during support and greater knee flexion during support and non‐support. There were no significant differences between the groups in submaximal VO2 or RPE. The results of this study suggest that verbal and visual feedback are effective means of eliciting modifications in running style in female novice runners. The link between modifications in running style and improvements in running economy and perceived exertion remains unclear. 相似文献
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P. Morrison D. J. Pearsall R. A. Turcotte K. Lockwood D. L. Montgomery 《Sports Engineering》2005,8(2):91-97
The purpose of this study was to investigate the effect of skate blade hollow on oxygen consumption during forward skating
on a treadmill. Varsity level female hockey players (n = 10, age = 21.7 years) performed skating tests at three blade hollows [0.25 in (6.35 mm), 0.50 in (12.7 mm), and 0.75 in
(19.05 mm)]. The subjects skated for four minutes at three submaximal velocities (12, 14 and 16 km h−1), separated by five minutes of passive recovery. In addition, a VO2max test was performed on the day that the subjects skated at the 0.50 in hollow. The VO2max test commenced at 14 km h−1 and increased by 1 km h−1 each minute until volitional exhaustion was achieved. Four variables were measured for each skating bout, volume of gas expired
(V
E), volume of oxygen consumed (VO
2), heart rate (HR) and rating of perceived exertion (RPE). No significant differences (p < 0.05) were found in any of the four test variables (V
E, VO2, HR, RPE) across the three skate hollows. These results show that when skating on a treadmill at submaximal velocities, skate
blade hollow has no significant effect onV
E, VO2, HR or RPE. 相似文献