目的:分析中国国家女子曲棍球队队员不同位置的跑动特征,为运动员科学选材与训练提供理论支撑。方法:运用九轴加速度传感器+GPS系统采集曲棍球运动员赛中的运动距离、运动量、运动强度、运动速度以及变速运动等指标。结果:(1)后卫的总...目的:分析中国国家女子曲棍球队队员不同位置的跑动特征,为运动员科学选材与训练提供理论支撑。方法:运用九轴加速度传感器+GPS系统采集曲棍球运动员赛中的运动距离、运动量、运动强度、运动速度以及变速运动等指标。结果:(1)后卫的总跑动距离和训练量显著高于前锋(P<0.001);前卫的训练量、训练强度显著高于前锋(P<0.05 or P<0.01)。(2)在0~4 m/s中低速区间,后卫跑动距离及次数显著高于前锋(P<0.05、P<0.01 or P<0.001);在4~6 m/s中高速区间,运动员在跑动距离、占比及次数方面前卫最高而前锋最低,前卫在4~5m/s区间跑动距离的占比显著高于其他位置(P<0.05 or P<0.01);在6+m/s高速区间,前锋的跑动距离、占比及次数显著高于后卫(P<0.05 or P<0.01)。(3)后卫高速向左、中加速和低加速的次数显著高于前锋(P<0.001 or P<0.01);前卫中速向左、低速向左、中加速、中减速以及低速向右的次数显著高于前锋(P<0.01 or P<0.05)。结论:中国国家女子曲棍球队前锋、前卫和后卫分别具有较强的高速、中速和中低速奔跑能力,分别体现了较多的高速直线加速、中低变速、中高变速运动的特征,前、后卫左向旋转变速运动表现尤为突出。展开更多
Background:Lacrosse is one of the fastest-growing sports in the United States.Its rules regarding permitted contact differ by sex and age.There are no known studies using a nationally representative data set to analyz...Background:Lacrosse is one of the fastest-growing sports in the United States.Its rules regarding permitted contact differ by sex and age.There are no known studies using a nationally representative data set to analyze lacrosse injury patterns over several years by sex and age in the youth population.Methods:A retrospective analysis was performed using data from the National Electronic Injury Surveillance System for youth aged 11-18 years who were treated for lacrosse-related injuries in U.S.emergency departments from 2000 to 2016.Based on our review of the case narratives,we created and coded a new injury-mechanism variable.We generated national estimates from 6406 cases.Results:An estimated 206,274 lacrosse-related injuries to youths aged 11-18 years were treated in U.S.emergency departments from 2000 to 2016.The rate of injuries per 10,000 significantly increased from 1.9 in 2000 to a peak of 5.3 in 2012(p<0.0001),followed by a significant decrease to 3.4 in 2016(p=0.020).Injury mechanism,body part injured,and diagnosis differed by sex.Boys were 1.62 times(95%confidence interval(95%CI):1.25-2.09)more likely than girls to be injured by player-to-player contact.Girls were 2.21 times(95%CI:1.96-2.49)more likely than boys to have non-contact injuries.Overall,as age increased,the percentage of injuries from lacrosse sticks decreased and player-toplayer contact increased.Conclusion:Despite additional protective regulations in the sport,lacrosse is an important source of injury where we continue to see differences by sex and age.This study supports the continuation,modification,and addition of rules aimed at reducing lacrosse injury risk.展开更多
为了解中国女子曲棍球比赛的运动负荷特征及运动员在场上的跑动位置和轨迹,应用GPSports Systems SPI 10运动监测系统及Polar团队心率表,对国家女子曲棍球队主力运动员26人备战2008年奥运会期间1～4月24场比赛数据进行整理分析。主要研...为了解中国女子曲棍球比赛的运动负荷特征及运动员在场上的跑动位置和轨迹,应用GPSports Systems SPI 10运动监测系统及Polar团队心率表,对国家女子曲棍球队主力运动员26人备战2008年奥运会期间1～4月24场比赛数据进行整理分析。主要研究表明,我国优秀女曲运动员在场上比赛表现出明显的项目特征:高强度、高对抗,对各个位置运动员的体能要求都很高。由多种不同形式的运动方式穿插在一起组合而成,在场地上约15%的时间是间歇性短距离快跑形式(无氧代谢),约85%的时间是慢跑、走动或原地休息的运动形式(有氧代谢)。快速冲刺能力与国际高水平队存在一定差距。展开更多
文摘目的:分析中国国家女子曲棍球队队员不同位置的跑动特征,为运动员科学选材与训练提供理论支撑。方法:运用九轴加速度传感器+GPS系统采集曲棍球运动员赛中的运动距离、运动量、运动强度、运动速度以及变速运动等指标。结果:(1)后卫的总跑动距离和训练量显著高于前锋(P<0.001);前卫的训练量、训练强度显著高于前锋(P<0.05 or P<0.01)。(2)在0~4 m/s中低速区间,后卫跑动距离及次数显著高于前锋(P<0.05、P<0.01 or P<0.001);在4~6 m/s中高速区间,运动员在跑动距离、占比及次数方面前卫最高而前锋最低,前卫在4~5m/s区间跑动距离的占比显著高于其他位置(P<0.05 or P<0.01);在6+m/s高速区间,前锋的跑动距离、占比及次数显著高于后卫(P<0.05 or P<0.01)。(3)后卫高速向左、中加速和低加速的次数显著高于前锋(P<0.001 or P<0.01);前卫中速向左、低速向左、中加速、中减速以及低速向右的次数显著高于前锋(P<0.01 or P<0.05)。结论:中国国家女子曲棍球队前锋、前卫和后卫分别具有较强的高速、中速和中低速奔跑能力,分别体现了较多的高速直线加速、中低变速、中高变速运动的特征,前、后卫左向旋转变速运动表现尤为突出。
文摘Background:Lacrosse is one of the fastest-growing sports in the United States.Its rules regarding permitted contact differ by sex and age.There are no known studies using a nationally representative data set to analyze lacrosse injury patterns over several years by sex and age in the youth population.Methods:A retrospective analysis was performed using data from the National Electronic Injury Surveillance System for youth aged 11-18 years who were treated for lacrosse-related injuries in U.S.emergency departments from 2000 to 2016.Based on our review of the case narratives,we created and coded a new injury-mechanism variable.We generated national estimates from 6406 cases.Results:An estimated 206,274 lacrosse-related injuries to youths aged 11-18 years were treated in U.S.emergency departments from 2000 to 2016.The rate of injuries per 10,000 significantly increased from 1.9 in 2000 to a peak of 5.3 in 2012(p<0.0001),followed by a significant decrease to 3.4 in 2016(p=0.020).Injury mechanism,body part injured,and diagnosis differed by sex.Boys were 1.62 times(95%confidence interval(95%CI):1.25-2.09)more likely than girls to be injured by player-to-player contact.Girls were 2.21 times(95%CI:1.96-2.49)more likely than boys to have non-contact injuries.Overall,as age increased,the percentage of injuries from lacrosse sticks decreased and player-toplayer contact increased.Conclusion:Despite additional protective regulations in the sport,lacrosse is an important source of injury where we continue to see differences by sex and age.This study supports the continuation,modification,and addition of rules aimed at reducing lacrosse injury risk.
文摘为了解中国女子曲棍球比赛的运动负荷特征及运动员在场上的跑动位置和轨迹,应用GPSports Systems SPI 10运动监测系统及Polar团队心率表,对国家女子曲棍球队主力运动员26人备战2008年奥运会期间1～4月24场比赛数据进行整理分析。主要研究表明,我国优秀女曲运动员在场上比赛表现出明显的项目特征:高强度、高对抗,对各个位置运动员的体能要求都很高。由多种不同形式的运动方式穿插在一起组合而成,在场地上约15%的时间是间歇性短距离快跑形式(无氧代谢),约85%的时间是慢跑、走动或原地休息的运动形式(有氧代谢)。快速冲刺能力与国际高水平队存在一定差距。
