运动员腘绳肌致伤风险与防范策略          下载免费PDF全文

李钊 《河北体育学院学报》2019,33(4):64-73

腘绳肌拉伤是当前世界竞技体育面临的亟待解决的热点与重点问题之一。结合最新的研究进展，对腘绳肌致伤的风险因素、机制、评价以及训练防范机制进行梳理，认为肌肉收缩适宜长度缩短、力量不均衡、准备活动不充分是造成腘绳肌拉伤的主要因素；等速测力法与实地测试法评价腘绳肌拉伤的有效性还需进一步研究；在训练实践中建议采用腘绳肌离心训练的方式，逐渐增加训练时间、强度、频率，课次间歇至少48 h等训练策略，能够有效避免腘绳肌运动拉伤。  相似文献   

Associated ACL risk factors differences during an unanticipated volleyball blocking movement     

David Zahradnik  Daniel Jandacka  Gabriela Beinhauerova  Joseph Hamill 《Journal of sports sciences》2020,38(20):2367-2373

ABSTRACT

The lateral tilt of the arms accompanied by trunk lateral tilt is a typical blocking manoeuvre in volleyball. However, during this unanticipated blocking movement, an associated risk of ACL injury may result. The aim of the present study was to compare associative ACL risk factors at the initial contact and the first and second peak of VGRF during an unanticipated blocking movement with different arm positions. Synchronized kinematic and kinetic data were collected for each trial of each condition. Student paired t-tests and effect size were used to determine differences between two conditions (S – with arms straight up from the body) and (T – with the arms and trunk laterally tilted). The results showed that the T condition significantly decreases knee flexion, increases VGRF at the foot contact, first peak force and increases the valgus moment at the first peak force. The values of the associated risk factors for a non-contact ACL injury appear to be related to the tilted arm position accompanied by trunk tilt towards to right lower limb during landing. The players should be taught to land with greater knee flexion and, if possible, a double-leg landing to decrease right lower limb loading during the blocking manoeuvre.  相似文献   

Training rugby athletes with an external attentional focus promotes more automatic adaptions in landing forces     

Tricia Lee Widenhoefer  Taylor Matthew Miller  Mark Steven Weigand  Emily Ann Watkins 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(2):163-173

Training to reduce landing forces is a common component of anterior cruciate ligament injury prevention programmes. The purpose of this study was to compare the effects of training incorporating instructions promoting an internal versus external attentional focus on landing forces in adolescent rugby athletes. Twenty-two rugby athletes were randomly allocated to groups that received instructions promoting an internal versus an external focus during a two week training programme. Landing forces were recorded before and after completion of the programme. During follow-up testing, landings were performed with and without a secondary cognitive task. Both groups exhibited a similar reduction in landing forces following training for trials performed without the secondary cognitive task. However, the groups responded differently when the secondary cognitive task was imposed. Athletes who were trained with an internal focus demonstrated a prominent increase in landing forces for trials that included the secondary cognitive task (vs. trials performed without the secondary cognitive task), whereas the secondary cognitive task had minimal influence for athletes who were trained with an external focus. It appears that training with an external focus may promote adaptations in landing mechanics that can be implemented more automatically.  相似文献   

关于长拳运动员运动损伤的调查研究     

孟祥太 《搏击·武术科学》2005,2(11):31-33

文章对33名长拳运动员进行了运动损伤的调查分析。调查表明:长拳运动员具有发病率高、急性损伤多、四肢伤多、骨性伤多的特点。文章在调查的基础上,对损伤的性质、原因进行了分析,旨在探讨长拳运动员损伤发生的规律及防治对策。  相似文献   

高校体育教学训练中常见软组织损伤的预防与治疗     

唐进昌 《柳州师专学报》2007,22(2):135-137

分析了高校体育教学训练中软组织损伤发生的原因,并提出了治疗方法和预防措施.  相似文献   

中小学校事故责任问题研究     

杨旭 《南阳师范学院学报》2003,2(11):30-33

学生伤害事故学校是否承担法律责任，现实中家长、学校的做法经常是片面的，甚至是偏激的．致使问题不能很好解决，反而常常使矛盾激化。正确的解决途径应该在明确学校与学生之间法律关系的基础上，依据不同的归责原则作具体分析，且不能以简单的时空论之。  相似文献   

足球运动肌肉损伤后功能恢复手段的研究与发展     

徐家林  裴德超 《安徽科技学院学报》2008,22(4)

肌肉损伤是足球运动损伤的主要类型,对于肌肉损伤后功能恢复手段的研究与发展一直是现代足球运动发展过程中亟待解决的重要课题.本文主要采用文献资料、逻辑分析、归纳比较等研究方法,通过对足球运动损伤的类型及损伤后肌肉功能恢复的机制进行研究分析,重点提出了肌肉功能恢复的3种主要治疗手段:中医疗法、运动疗法以及药物疗法.最后对足球运动损伤后肌肉功能恢复手段的发展趋势做了进一步的探讨.  相似文献   

卢沟桥事件的真相再析     

吴玉林 《信阳师范学院学报(哲学社会科学版)》2001,21(3):107-112,117

日本帝国主义侵略中国蓄谋已久,但作为发动全面侵华战略的序幕-卢沟桥事件,并非是日本政府直接策划的,事件发生之前,日本出于自身的利益,企图“缓和”与中国的关系。事件发生之后,在对华派兵问题上,日本政府内部产生“扩大派”与“不扩大派”之争。经过几天的争论,日本内阁决定向中国派兵。此时,日本军部均是以“临命”的指示对日军下达派命令。事件虽不是日本政府直接策划的,但也绝非是偶然发生的,而是日本帝国主义侵略中国的总计划实施的必然结果,具体是由驻扎在丰台的日军第三大队队长-木清直等人策划的,其目的是为了方便军事演习,侵占卢沟桥附近的演习场,夺取宛平县城。一木清直等人事后又编造谎言,不敢承认自己的罪行,他们的言行暴露了卢沟桥事件的真相,日本帝国主义借卢沟桥事件,提前对中国发动了全面侵略战争。  相似文献   

国家男子体操队运动员创伤特点分析     

曹立春  吴昊 《首都体育学院学报》2007,19(4):69-71

为了预防和最大限度的减少伤病的发生,深入国家男子体操队对50名运动员的运动创伤情况逐一进行了检查（由备战2008年奥运会医疗专家检查与诊断）,对所获数据进行了统计学分析（Spss13.0）。结论认为不仅专业化训练开始年龄过早和初训年龄过早会影响运动员的职业生涯,初训年龄过晚也可以加大运动创伤发生的几率,同时也降低了成才几率。  相似文献   

对学生体育伤害事故赔偿问题的思考     

刘静春 《湖北体育科技》2009,28(6):647-648

目前,学生体育伤害事故的赔偿中存在法律归责原则不全面、赔偿资金不足、到位不及时等问题,而学生无力独自承受巨额经济损失是学校和学生之间发生法律纠纷的主要原因。根据经验和保险的分担危险、补偿损失功能,依托商业保险实现赔偿责任社会化是解决赔偿纠纷的最佳途径。建议：完善相关法律、建立学生体育伤害保障机制。  相似文献