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介绍了适时监控自行车训练过程的几种手段与方法。包括：用WATTBIKE-多功能自行车准确即时反馈每次踏蹬的生理和生物力学参数;用大型跑台训练计时赛的速度控制技术;用polarTeam2适时监控团体项目训练中的心率。 相似文献
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《体育科技文献通报》1998,(4)
G872.314.23,G804.23,XL96069 9801437自行车运动员摄氧量心率分级及其在训练实践中的应用[XL,中,A]/沈金康//北京体育大学硕士学位论文.-1996.-1-23(SML)自行车运动//耗氧量//心率//训练控制//手段//应用//最大耗氧量//负荷//强度//监测//生理//生物化学//指标自行车运动各项目专项特点的评定及训练中的训练负荷与负荷强度的监控,从传统采用比赛与训练时间及时速逐步转变为采用实验室和运动 相似文献
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我国自行车运动成绩不高,主要原因是训练水平低,手段单一,本文应用血乳配及遥测心率等指标,研究了自行车训练中的爬坡和训练台问题,以便寻求更科学的手段,其目的是用生理生化指标监测训 相似文献
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采用测试法,从生化指标监测、心率监控和踏蹬频率传动比优化3个方面入手,对上海市残疾人自行车运动员周菊芳的高原训练进行科学监控,为其高原训练提供全面保障。 相似文献
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我国自行车训练水平与世界水平差距很大,其主要原因是训练水平低,手段单一。为了提高自行车运动水平,总结我国自行车运动的训练模式,本文采用某些生理生化指标,对自行车训练中的几个新问题,进行了跟踪研究,从中寻求更科学的训练手段。 1.研究对象与方法 1.1对象:为参加七运会辽宁省男子自行车运动员10名,年龄20.9±2.96 相似文献
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目的:以备战十三运会浙江省场地自行车短距离组运动员为研究对象,通过监控冬训前后各项生理指标,探讨和评价冬训引起自行车运动员专项能力及形态指标的变化规律,探寻科学化训练的有效性.方法:在冬训前后,对自行车运动员的最大摄氧量、无氧功、体成分进行监测分析,运用统计学的相关系数方法进行定量分析.结果:(1)冬训前后自行车运动员最大摄氧量、相对最大摄氧量几乎没有变化;(2)女子运动员最大无氧功、30s平均无氧功和体成分指标未见显著性差异而30s平均无氧功呈现显著性差异,但有较为明显的变化.结论:(1)有氧代谢能力的优劣并不是影响场地自行车短距离运动员专项成绩的主要因素,但对无氧训练后乳酸的消除起到积极的作用;(2)无氧代谢供能是影响场地自行车短距离运动员运动成绩的重要因素,峰值功率和30s平均功率评价运动员冬训训练效果是科学的;(3)体脂百分比下降,而瘦体重增加,对提高运动员专项成绩起到积极的作用. 相似文献
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目的:研究以备战十二庙全运会浙江省场地自行车短距离组运动员为研究对象,通过冬训期间生化指标的测试,探讨和试图发现冬训引起自行车运动员身体机能的变化规律,达到在冬训期间对运动员的身体机能和训练强度进行有效的监控和调整的效果,为自行车项目的体育科研实践提供一定的理论依据。方法:在整个冬季训练周期内,对自行车运动员的Hb、BUN、CK、T四项指标进行系统的长期监控。结果:冬训前后自行车运动员Hb、BUN、CK、T处于正常标准范围,在整个冬训期间,Hb、BUN、CK、T随运动负荷的变化经历了周期性变化,其中BUN和CK均出现显著性差异(P<0.05)或非常显著性差异(P<0.01),而Hb和T(除第3周外)均未出现显著性差异(P>0.05)。结论:①冬训期间运动员Hb、CK、T随运动负荷的变化而变化,女子运动员对上述生化指标的敏感度要高于男子运动员。②BUN维持在一个较高的水平上可能并不会对场地自行车短距离运动员的运动成绩带来太大的影响。③由于运动员所能承受的负荷量和强度都不尽相同,相同负荷量和强度所产生的机能反应也不会相同,进一步分析时需要结合个体生理生化指标和训练计划完成情况进行综合考虑,从而提高测定分析的准确性。 相似文献
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金树达 《哈尔滨体育学院学报》2006,24(2)
通过对自行车运动员爬坡训练和训练台训练中血乳酸及心率等生理生化指标的分析研究,找出提高乳酸耐受力训练水平和提高有氧能力训练水平的有效方法。 相似文献
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Eric C. Haakonssen Martin Barras Louise M. Burke David G. Jenkins David T. Martin 《European Journal of Sport Science》2016,16(6):645-653
The aims of this study were to describe normative values and seasonal variation of body composition in female cyclists comparing female road and track endurance cyclists, and to validate the use of anthropometry to monitor lean mass changes. Anthropometric profiles (seven site skinfolds) were measured over 16 years from 126 female cyclists. Lean mass index (LMI) was calculated as body weight?×?skinfolds?x. The exponent (x) was calculated as the slope of the natural logarithm of body weight and skinfolds. Percentage changes in LMI were compared to lean mass changes measured using dual-energy X-ray absorptiometry (DXA) in a subset of 25 road cyclists. Compared to sub-elite and elite cyclists, world class cyclists were (mean [95% CI]) 1.18?kg [0.46, 1.90] and 0.60?kg [0.05, 1.15] lighter and had skinfolds that were 7.4?mm [3.8, 11.0] and 4.6?mm [1.8, 7.4] lower, respectively. Body weight (0.41?kg [0.04, 0.77]) and skinfolds (4.0?mm [2.1, 6.0]) were higher in the off-season compared to the early-season. World class female road cyclists had lower body weight (6.04?kg [2.73, 9.35]) and skinfolds (11.5?mm [1.1, 21.9]) than track endurance cyclists. LMI (mean exponent 0.15 [0.13, 0.18]) explained 87% of the variance in DXA lean mass. In conclusion, higher performing female cyclists were lighter and leaner than their less successful peers, road cyclists were lighter and leaner than track endurance cyclists, and weight and skinfolds were lowest early in the season. LMI appears to be a reasonably valid tool for monitoring lean mass changes. 相似文献
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优秀短距离自行车运动员无氧代谢能力特征研究 总被引：13，自引：2，他引：11
目的:比较不同性别和训练水平运动员无氧能力的差异,探讨短距离自行车运动员高能磷酸原供能、糖酵解供能和混合无氧供能能力的特征。方法:对16名优秀短距离自行车运动员进行10s(女)、15s(男)、30s和60s的无氧功测定,测定运动后即刻、运动后3min恢复心率和血乳酸。结果:1)磷酸原代谢能力表现出明显的性别差异,男运动员最大功率、相对最大功率、平均功率、相对平均功率、最大圈数都明显高于女运动员;2)30s和60s两种测试中,运动员爆发力表现出相同水平,但糖酵解代谢持续供能能力随运动时间的延长而明显下降;3)男子优秀运动员组15s无氧功最大功率、平均功率明显高于普通组。男、女最大圈数大于普通组,达到最大圈数时间小于或等于普通组;4)男子优秀组运动员30s、60s平均功率高于普通运动员组。女子优秀运动员组30s、60s平均功率、最大圈数明显高于普通运动员组,60s最大功率明显高于普通运动员组(P<0.05)。结论:1)优秀短距离自行车运动员具有较强的磷酸原代谢能力,男运动员明显强于女运动员;2)较强的糖酵解代谢能力是短距离自行车运动员无氧代谢能力的特征;3)评定磷酸原系统能力时,男、女运动员都使用10s无氧功测试为好;4)不同水平运动员的无氧代谢能力表现出明显差异,优秀运动员组强于普通运动员组。 相似文献
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研究目的 :探讨了 mt DNA D- loop多态性与澳大利亚自行车运动员的 VO2 max及优异耐力成绩的关系。研究结果 :前期研究发现虽然运动员组和对照组 VO2 max有显著性差异 ,但 mt DNA D- loop的多态性在两组的分布频率没有显著性差异 相似文献
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研究目的:探讨了mtDNA D-loop多态性与澳大利亚自行车运动员的VO2max及优异耐力成绩的关系.研究结果:前期研究发现虽然运动员组和对照组VO2max有显著性差异,但mtDNA D-loop的多态性在两组的分布频率没有显著性差异. 相似文献
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范育飞 《体育成人教育学刊》2011,27(4):69-70
利用Con-Trex等速肌力测试与训练系统,以180°/s、120°/s、60°/s的3种角速度对13名男子优秀自行车运动员和13名女子优秀自行车运动员左腿髋关节进行等速向心收缩测试。获得了相应的等速向心收缩的伸屈肌峰值力矩、伸屈肌总功、伸屈肌平均功率等指标,并结合项目特点分析各角速度下指标的差异。 相似文献
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KEITH P. GEORGE PHILIP E. GATES KAREN M. BIRCH IAN G. CAMPBELL 《Journal of sports sciences》2013,31(8):633-642
In this study,we investigated resting left ventricular dimensions and function in trained female rowers, canoeists and cyclists. In male populations, such athletes have demonstrated the largest left ventricular wall thicknesses and cavity dimensions. Echocardiograms were analysed from 24 athletes (rowers and canoeists, n=12; cyclists, n=12) and 21 age-matched controls to measure left ventricular end-diastolic dimension and volume, and septal (ST) and posterior wall (PWT) thicknesses. Left ventricular mass was calculated from M-mode data. Systolic and diastolic function were calculated from M-mode and Doppler echocardiography, respectively. Height, body mass, body surface area and fat-free mass were determined anthropometrically. The athletes were well matched with the controls for all anthropometric variables except fat-free mass (rowers and canoeists 49.7 3.6 kg, cyclists 48.0?+\- 3.8 kg, controls 45.0?+\- 5.4 kg; P < 0.05). The left ventricular end-diastolic dimension, mass and volume, and septal and posterior wall thicknesses, were all significantly greater in the athletes than the controls (P < 0.05). These differences persisted (except for left ventricular end-diastolic dimension) even after allometric adjustment for group differences in fat-free mass. Stroke volume was larger (rowers and canoeists 102?+\- 13 ml, cyclists 103?+\0 16 ml, controls 80?+\- 15 ml; P < 0.05) in both groups of athletes but all other functional data were similar between groups. As in male athletes, female rowers, canoeists and cyclists displayed significantly larger left ventricular cavity dimensions and wall thicknesses than controls. 相似文献
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In this study, we investigated resting left ventricular dimensions and function in trained female rowers, canoeists and cyclists. In male populations, such athletes have demonstrated the largest left ventricular wall thicknesses and cavity dimensions. Echocardiograms were analysed from 24 athletes (rowers and canoeists, n = 12; cyclists, n = 12) and 21 age-matched controls to measure left ventricular end-diastolic dimension and volume, and septal (ST) and posterior wall (PWT) thicknesses. Left ventricular mass was calculated from M-mode data. Systolic and diastolic function were calculated from M-mode and Doppler echocardiography, respectively. Height, body mass, body surface area and fat-free mass were determined anthropometrically. The athletes were well matched with the controls for all anthropometric variables except fat-free mass (rowers and canoeists 49.7+/-3.6 kg, cyclists 48.0+/-3.8 kg, controls 45.0+/-5.4 kg; P < 0.05). The left ventricular end-diastolic dimension, mass and volume, and septal and posterior wall thicknesses, were all significantly greater in the athletes than the controls (P < 0.05). These differences persisted (except for left ventricular end-diastolic dimension) even after allometric adjustment for group differences in fat-free mass. Stroke volume was larger (rowers and canoeists 102+/-13 ml, cyclists 103+/-16 ml, controls 80+/-15 ml; P < 0.05) in both groups of athletes but all other functional data were similar between groups. As in male athletes, female rowers, canoeists and cyclists displayed significantly larger left ventricular cavity dimensions and wall thicknesses than controls. 相似文献
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自行车运动员与普通受试者的血液流变性比较 总被引：2，自引：0，他引：2
采用实验方法对自行车运动员和普通受试者进行了测试。结果表明：自行车运动员的红细胞变形能力指数显著高于普通受试者。研究认为,某些血液流变性的改善是自行车运动员的特点之一。 相似文献
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自行车运动场地项目原地起动技术动作的设计及其训练的实验研究 总被引：5，自引：0，他引：5
采用实验法、观察法等科研方法,以河南自行车队短距离项目组男、女运动员为实验对象,从生物力学角度重新设计改进了自行车场地项目原地起动技术动作,通过实践取得了很好的效果。 相似文献
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本研究采用实验法、观察法等研究方法,以山西省自行车队短距离项目组男、女运动员为实验对象,从生物力学角度研究自行车场地项目原地起动技术动作要领。 相似文献