共查询到20条相似文献，搜索用时 46 毫秒
1.
我国优秀女子短跑运动员100m跑速度节奏分析 总被引：1，自引：0，他引：1
越来越多的研究发现:从整体上把握百米跑全程速度节奏是进一步提高成绩的有效方法。为此,通过对参加第九届全运会女子百米跑决赛运动员以及世界优秀女子短跑运动员的百米跑全程速度节奏对比分析发现:与世界优秀女子短跑运动员相比,我国优秀女子短跑运动员在贯彻百米跑的整体观,合理使用短跑所需体能等方面尚有一定差距,这是影响其百米成绩进一步提高的主要原因之一。 相似文献
2.
3.
从雅典奥运会女子400m栏比赛看我国运动员的差距 总被引：6，自引：0，他引：6
黄潇潇是唯一代表中国参加雅典奥运会女子400m栏比赛的运动员,通过对其比赛全程节奏与奥运会前五名运动员的比较,发现其400m平跑速度差、比赛中起跑至第一栏跑速过快、在途中第4-7栏及最后冲刺速度明显下降,建议国内优秀运动员在今后的训练中要注重发展400m平跑速度、掌握好各段落的栏间节奏,提高保持高速跑及终点冲刺跑的专项能力,以缩小我国优秀运动员与国外优秀运动员的差距. 相似文献
4.
5.
用流体力学原理．从能量的角度来分析1500m跑的最佳节奏,用‘最优速度方程”以及世界优秀运动员1500m跑全程各分段成绩论述了匀速跑是1500m的最佳节奏。 相似文献
6.
7.
翟丰 《天津体育学院学报》2006,21(1):63-66
对男子达到健将、女子达到国际健将的中外马拉松运动员117人次比赛的速度分配进行研究，结果表明，优秀马拉松运动员比赛速度分配呈“匀速跑”特征；运用运动员比赛全程各段落速度百分率的特征，建立各段落成绩量化的模式表，即各段落速度分配表，为运动员比赛实施理想的速度分配，创造优异成绩提供参考。 相似文献
8.
女子少年跨栏运动员周佳的速度及力量训练 总被引：1，自引：0，他引：1
现代跨栏跑的技术特点是以快速、流畅的全程跑 节奏“跑过栏”。美国跨栏教练吉·布什曾说过“要跑过栏,不要跳过栏”。而女子直道栏技术是从先前的女子８０ｍ低栏演变而来的。加长了栏间距离,增加了栏架高度,从而增加了全程跨栏跑的难度,对女子跨栏运动员的柔韧、协调能力和力量、速度都提出了更高的要求。 英国优秀三级跳远运动员爱德华兹说过：“我不是跑得最快的,不是最强的,也不是最灵活协调的,但我却拥有三者的最佳组合”。一个优秀运动员必须具有个人特点。优秀跨栏运动员首先掌握符合个人身体特点的合理技术。其次具有很强的… 相似文献
9.
中外优秀110 m跨栏跑运动员速度特征分析 总被引：3，自引：0，他引：3
徐勤儿 《西安体育学院学报》2007,24(6):90-92
为揭示中外优秀男子110 m跨栏跑速度分配的本质,提高我国男子110 m跨栏跑运动成绩和改进训练方法提供科学依据,采用动态分析法对男子110 m跨栏跑进行全程分析。结果表明,中外优秀的跨栏运动员在第3栏-第5栏间速度最快并保持稳定,从跨过第6栏后开始逐渐减速,减速至第9栏前速度达最小,在第9栏到第10栏间又出现加速,然后高速冲刺至终点;运动员栏间跑速度快,会造成过栏腾空时间长;9个跨栏周期的平均速度是影响运动员能否夺冠的主要因素。 相似文献
10.
中国优秀男子短跑运动员百米加速段某些运动学特征规律的研究 总被引：6，自引：0，他引：6
加速段落是百米跑全程中最重要的段落。中国优秀男子短跑选手与世界优秀选手在这方面有何差距及步长、步频对其影响,是广大教练员、科研人员感兴趣的问题。本文通过对中、外优秀男子百米运动员该段落的速度、步长、步频的比较,以及同他们全程跑有关指标的分析,提出了中国优秀男子百米运动员比赛全程及加速段落运动学特征的规律,以及步长与步频对加速段落的影响;并提出了关于加速段专项力量训练的方法与建议;建立了有关加速段落成绩的推测方程,以利对短跑运动员的加速能力进行检查与评定。 相似文献
11.
采用影片解析与运动生物力学研究法。将辽宁省5位女子800米优秀选手在第7届全运会800米跑决赛中的分段时间与速度节奏,全程步频与步频指数,全程步数（步长）与步长指数,单步时相结构,步幅结构,支撑技术,摆动腿与臂的技术等,与国内组与国外组选手进行对比,从而揭示出她们的共性技术特征。 相似文献
12.
Foot strike patterns and ground contact times during high-calibre middle-distance races 总被引：1，自引：1，他引：0
Abstract The aims of this study were to examine ground contact characteristics, their relationship with race performance, and the time course of any changes in ground contact time during competitive 800?m and 1500?m races. Twenty-two seeded, single-sex middle-distance races totalling 181 runners were filmed at a competitive athletics meeting. Races were filmed at 100?Hz. Ground contact time was recorded one step for each athlete, on each lap of their race. Forefoot and midfoot strikers had significantly shorter ground contact times than heel strikers. Forefoot and midfoot strikers had significantly faster average race speed than heel strikers. There were strong large correlations between ground contact time and average race speed for the women's events and men's 1500?m (r?=?-0.521 to -0.623; P?相似文献
13.
陈海清 《西安体育学院学报》1993,(3)
通过对影响4×100m接力整体水平和成绩诸因素的分析,结合指导4×100m接力队训练的实践体会,笔者认为,必须重视和加强对4×100m接力的训练,特别是整体能力的训练,大胆实践,敢于革新训练方法,努力使4×100m接力的整体能力和运动成绩得到提高。 相似文献
14.
《运动与健康科学(英文)》2021,10(5):537-549
The pacing behaviors used by elite athletes differ among individual sports, necessitating the study of sport-specific pacing profiles. Additionally, pacing behaviors adopted by elite runners differ depending on race distance. An “all-out” strategy, characterized by initial rapid acceleration and reduction in speed in the later stages, is observed during 100 m and 200 m events; 400 m runners also display positive pacing patterns, which is characterized by a reduction in speed throughout the race. Similarly, 800 m runners typically adopt a positive pacing strategy during paced “meet” races. However, during championship races, depending on the tactical approaches used by dominant athletes, pacing can be either positive or negative (characterized by an increase in speed throughout). A U-shaped pacing strategy (characterized by a faster start and end than during the middle part of the race) is evident during world record performances at meet races in 1500 m, 5000 m, and 10,000 m events. Although a parabolic J-shaped pacing profile (in which the start is faster than the middle part of the race but is slower than the endspurt) can be observed during championship 1500 m races, a negative pacing strategy with microvariations of pace is adopted by 5000 m and 10,000 m runners in championship races. Major cross country and marathon championship races are characterized by a positive pacing strategy; whereas a U-shaped pacing strategy, which is the result of a fast endspurt, is adopted by 3000 m steeplechasers and half marathoners. In contrast, recent world record marathon performances have been characterized by even pacing, which emphasizes the differences between championship and meet races at distances longer than 800 m. Studies reviewed suggest further recommendations for athletes. Throughout the whole race, 800 m runners should avoid running wide on the bends. In turn, during major championship events, 1500 m, 5000 m, and 10,000 m runners should try to run close to the inside of the track as much as possible during the decisive stages of the race when the speed is high. Staying within the leading positions during the last lap is recommended to optimize finishing position during 1500 m and 5000 m major championship races. Athletes with more modest aims than winning a medal at major championships are advised to adopt a realistic pace during the initial stages of long-distance races and stay within a pack of runners. Coaches of elite athletes should take into account the observed difference in pacing profiles adopted in meet races vs. those used in championship races: fast times achieved during races with the help of one or more pacemakers are not necessarily replicated in winner-takes-all championship races, where pace varies substantially. Although existing studies examining pacing characteristics in elite runners through an observational approach provide highly ecologically valid performance data, they provide little information regarding the underpinning mechanisms that explain the behaviors shown. Therefore, further research is needed in order to make a meaningful impact on the discipline. Researchers should design and conduct interventions that enable athletes to carefully choose strategies that are not influenced by poor decisions made by other competitors, allowing these athletes to develop more optimal and successful behaviors. 相似文献
15.
16.
Abstract A study of the effect of fatigue on the mechanical characteristics of running during a 10,000 meter race was undertaken using high speed cinematography and a computer analysis technique. Eight highly skilled male subjects were filmed at four intervals throughout the event. An analysis of variance for trends was conducted for each of the dependent variables indicating the adjustments made by the runners that accompanied fatigue over the four stages of the event. Runners countered fatigue by changing sections of their total gait pattern (stride length, stride rate, segmental body positions) and reducing running velocity. Toward the end of the race the runners became less competent in the positioning of the foot and leg at foot-strike, which increased the potential for a retarding effect. A more extended lower limb increased the energy requirements of the recovery phase during the latter stages of the race. Fatigue caused these highly skilled runners to systematically alter their technique throughout the race. These adjustments, however, were not excessive. 相似文献
17.
18.
关于青少年中长跑运动员初期训练方法的研究 总被引：1，自引：0，他引：1
通过多年来对体育专业学生中长跑教学与训练的经验和体会，总结出了训练青少年中长跑运动员的具体训练方法、手段，在指导中长跑运动员进行全年、多年、准备期、竞赛期和休整期等各个时期的系统训练过程，有直观地参考作用。 相似文献
19.
The purpose of this study was to determine how female marathon runners of varying standards differed in body composition and physique and in their training regimes, and secondly to develop predictors of distance running performance from the anthropometric and training variables. Female marathon runners (n = 36), all participants in a national 10 mile (16 km) road racing championship, were divided into three groups according to their best time for the 26.2 mile race. They were assessed for body composition and somatotype using anthropometric techniques and completed a questionnaire about their current training for the marathon. No difference was found between the groups of distance runners when measured for height, bone widths and circumferences. The three groups were found to have similar body weights of approximately 53 kg, a value which is much lower than the average for sedentary women, but which compares favourably with those from previous studies of female long distance runners. While all the runners had a lower per cent fat, as measured from skinfold thicknesses, than sedentary women, the elite runners were seen to have significantly lower values (P less than 0.05) than the other two groups. The difference in body fat was particularly reflected in the triceps skinfold value. There was also a tendency for the elite runners to be more ectomorphic and less endomorphic than the others. The better runners were seen, on the whole, to have been running longer, and to have more strenuous regimes, both in terms of intensity of training and distance run per week. Multiple regression and discriminant function analyses indicated that the number of training sessions per week and the number of years training were the best predictors of competitive performance at both 10 mile and marathon distances. They also indicated that a female long distance runner with a slim physique high in ectomorphy has the greatest potential for success. 相似文献
20.
Rémy Hurdiel Thierry Pezé Johanna Daugherty Julien Girard Mathias Poussel Laurence Poletti 《Journal of sports sciences》2015,33(7):670-674
This study investigated the effects of combined sleep deprivation and strenuous exercise on cognitive and neurobehavioral performance among long-distance runners completing one of the most difficult ultramarathons in the world. Seventeen runners participated. Each had a wrist-worn actigraph throughout the race to record their sleep time. In addition, each individual’s performance in 10-min response-time tests before and after the race was recorded and a questionnaire enabled participants to report any difficulties they experienced during the competition. During race completion times of 27 to 44 h, combined acute lack of sleep (12 ± 17 min of rest during the race) and strenuous exercise (168.0 km) had marked adverse effects on cognitive performances ranging from mere lengthening of response time to serious symptoms such as visual hallucinations. This study suggests that regardless of rest duration and time in race, cognitive performances of ultramarathoners are adversely affected. 相似文献