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对巩立姣伦敦奥运会最好成绩的推铅球滑步技术的运动学分析 被引量:2
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作者 崔冬雪 李梅素 +1 位作者 巩立姣 段斌 《河北体育学院学报》 2018年第3期80-86,共7页
采用Dartfish解析法,选取角度、高度、距离等指标,对巩立姣在2012年伦敦奥运会上最好成绩20.22m的推铅球滑步技术进行运动学分析,并与新西兰选手ADAMS Valerie进行比较,指出:巩立姣在团身动作阶段,右腿屈膝程度小,呈现躯干下潜、臀高肩... 采用Dartfish解析法,选取角度、高度、距离等指标,对巩立姣在2012年伦敦奥运会上最好成绩20.22m的推铅球滑步技术进行运动学分析,并与新西兰选手ADAMS Valerie进行比较,指出:巩立姣在团身动作阶段,右腿屈膝程度小,呈现躯干下潜、臀高肩低的姿态;在背向滑步右脚离地瞬间,左腿摆动过高,重心向投掷方向移动不充分、躯干起伏较大;在右脚着地瞬间,滑步距离较短、左侧肢体的回扣松散,超越器械幅度小;在左脚着地瞬间,左脚落于投掷中线上,两脚间左右距离过小、前后距离过大,超越器械不充分。针对以上问题,提出改善建议,为其今后技术训练和水平提升提供参考。 展开更多
关键词 巩立姣 铅球 滑步技术 运动学 屈膝 重心移动 滑步距离 两脚间距
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体育专业女生推铅球滑步技术的教学改进
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作者 王保华 刘艳春 《天中学刊》 2003年第2期111-112,共2页
为了解决高校体育专业女生推铅球技术教学中普遍存在的滑步距离短,从而导致场地利用率低;技术完整性差的问题,我们通过改进教学方法、精选教学手段有效地提高了教学效果.
关键词 体育专业 女生 推铅球 滑步技术 体育教学 滑步距离 教学改革 教学方法
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The St.George's Respiratory Questionnaire in Lymphangioleiomyomatosis 被引量:1
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作者 Kai-feng Xu LanWang Xin-lun Tian Yao-song Gui Min Peng Bai-qiang Cai Yuan-jue Zhu 《Chinese Medical Sciences Journal》 CAS CSCD 2010年第3期140-145,共6页
Objective To examine the correlation between the health-related quality of life measured by the St.George's Respiratory Questionnaire(SGRQ) and the commonly used physiological measures in lymphangioleiomyomatosis(... Objective To examine the correlation between the health-related quality of life measured by the St.George's Respiratory Questionnaire(SGRQ) and the commonly used physiological measures in lymphangioleiomyomatosis(LAM).Methods This study retrospectively analyzed the SGRQ scores and other measures(the Borg scale of breathlessness at rest,6-minute walking distance,blood oxygen levels,and pulmonary function) of patients diagnosed and confirmed with LAM.Altogether 38 patients between June 2007 and November 2009 were included.Results The mean values of the SGRQ three components(symptoms,activity,and impacts) and total scores in the LAM patients were 46.95±28.90,58.47±25.41,47.89±29.66,and 51.11±26.35,respectively.The SGRQ total or component scores were correlated well with the Borg scale of breathlessness,6-minute walking distance,partial pressure of oxygen in arterial blood,spirometry and diffusion capacity of lung.There were poor correlations between SGRQ score and residual volume or total lung capacity.In our preliminary observation,sirolimus improved the SGRQ total and three component scores and the Borg scale of breathlessness significantly after 101-200 days of treatment(n=6).Conclusions The SGRQ score in LAM is correlated well with physiological measures(Borg scale of breathlessness,6-minute walking distance,blood oxygen levels,and pulmonary function tests).The SGRQ could therefore be recommended in baseline and follow-up evaluation of patients with LAM.Treatment with sirolimus,an inhibitor of mammalian target of rapamycin,may improve the quality of life and patient's perception of breathlessness in LAM. 展开更多
关键词 LYMPHANGIOLEIOMYOMATOSIS St. George's Respiratory Questionnaire pulmonary function quality of life SIROLIMUS
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