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51.
《European Journal of Sport Science》2013,13(3):256-271
Abstract Since the turn of the 21st century, there has been a resurgence of vibration technology to enhance sport science especially for power and force development. However, vibration exercise has been trialled in other areas that are central to athlete performance such as warm-up, flexibility and sprint speed. Therefore, the aim of this review was to attempt to gain a better understanding of how acute and short-term vibration exercise may impact on warm-up, flexibility and sprint speed. The importance of warming up for sporting performance has been well documented and vibration exercise has the capability to be included or used as a standalone warm-up modality to increase intramuscular temperature at a faster rate compared to other conventional warm-up modalities. However, vibration exercise does not provide any additional neurogenic benefits compared to conventional dynamic and passive warm-up interventions. Vibration exercise appears to be a safe modality that does not produce any adverse affects causing injury or harm and could be used during interval and substitution breaks, as it would incur a low metabolic cost and be time-efficient compared to conventional warm-up modalities. Acute or short-term vibration exercise can enhance flexibility and range of motion without having a detrimental effect on muscle power, however it is less clear which mechanisms may be responsible for this enhancement. It appears that vibration exercise is not capable of improving sprint speed performance; this could be due to the complex and dynamic nature of sprinting where the purported increase in muscle power from vibration exercise is probably lost on repeated actions of high force generation. Vibration exercise is a safe modality that produces no adverse side effects for injury or harm. It has the time-efficient capability of providing coaches, trainers, and exercise specialists with an alternative modality that can be implemented for warm-up and flexibility either in isolation or in conjunction with other conventional training methods. 相似文献
52.
《European Journal of Sport Science》2013,13(4):237-242
Abstract Evasive change-of-direction manoeuvres (agility skills) are a fundamental ability in rugby union. In this study, we explored the attributes of agility skill execution as they relate to effective attacking strategies in rugby union. Seven Super 14 games were coded using variables that assessed team patterns and individual movement characteristics during attacking ball carries. The results indicated that tackle-breaks are a key determinant of try-scoring ability and team success in rugby union. The ability of the attacking ball carrier to receive the ball at high speed with at least two body lengths from the defence line against an isolated defender promoted tackle-breaks. Furthermore, the execution of a side-step evasive manoeuvre at a change of direction angle of 20–60° and a distance of one to two body lengths from the defence, and then straightening the running line following the initial direction change at an angle of 20–60°, was associated with tackle-breaks. This study provides critical insight regarding the attributes of agility skill execution that are associated with effective ball carries in rugby union. 相似文献
53.
灵敏素质是人体在一定条件下的各种素质能力的综合表现。武术运动是强调＂内外合一,形神兼备＂的民族传统体育项目。武术运动的难美复杂性要求运动员必须具备较高的灵敏素质训练。文章通过分析影响运动员灵敏素质的因素,并进一步提出了促进武术运动员灵敏素质发展的建设性意见。 相似文献
54.
本文对390名高中学生进行了灵敏性测试,结果发现高中男女学生灵敏性与文化成正相关关系。为体育教师、教练员进行评定训练效果、提高成绩提供可靠的依据,为非体育专业的教师及社会各界有识之士对体育的再认识提供科学的依据。 相似文献
55.
排球健身操提高高校学生柔韧和灵敏素质的试验研究 总被引：4，自引：0，他引：4
运用文献资料法、试验研究法、数理统计等方法,通过对排球健身操提高高校女生学生柔韧和灵敏素质的试验研究,结果表明:排球健身操对柔韧和灵敏素质均有良好的影响。 相似文献
56.
采用面向服务架构实现敏捷企业 总被引：4，自引：0，他引：4
针对当前企业应用系统复杂性导致的问题,介绍了最新的面向服务架构的解决方案。阐述了面向服务架构的概念、特征、实现方法和相关技术,提出可采用面向服务架构来提高企业敏捷性,优化业务流程,以迎合快速变化的市场需求,给出了建立企业面向服务架构的解决步骤。 相似文献
57.
围绕动态能力理论,挖掘制造企业服务创新绩效提升的前因变量,探究大数据分析能力对制造企业服务创新绩效的影响及其作用机制,并利用285家制造企业数据检验研究假设.基于层级回归分析和Bootstrap方法的实证结果表明,大数据分析能力不仅正向影响制造企业服务创新绩效,也正向影响资源拼凑与组织敏捷性;资源拼凑与组织敏捷性均有助于制造企业服务创新绩效的提升;资源拼凑与组织敏捷性在大数据分析能力和制造企业服务创新绩效的关系中起部分中介作用,且为链式中介.研究结论的实践启示为:制造企业需重视对大数据分析的投资,通过提升大数据分析能力实现高资源拼凑、高组织敏捷性和服务创新高绩效;同时需重视采取资源拼凑战略行为,通过有意识地将现有资源进行组拼以率先实现对新服务需求的满足、创造出优于竞争对手的服务创新成果. 相似文献
58.
在企业调研、文献研究、专家访谈的基础上,提出供应物流协同理论,不仅注重多个供应商与下游制造商的协同,同时考虑各个供应商之间相互配合,共同满足下游制造商的需求。设计供应物流协同量表,分为供应商与制造商协同、供应商之间协同、物流服务能力三个维度。提出供应物流协同、供应链敏捷性、供应链企业绩效之间的关系模型。与"中国制造业信息化门户网站e-works"合作发放问卷收集数据,通过统计分析验证量表的信度与效度,并且实证分析供应物流协同对供应链敏捷性、供应链企业绩效的直接和间接效应。 相似文献
59.
This study introduces the concept of outsourcing appropriation based on adaptive structuration theory (AST) to explore how organizations attain IT-dependent organizational agility through outsourcing appropriation. It examines the mediating role of IT alignment and the moderating roles of the adoption of cloud computing and knowledge transfer. The proposed model was tested using survey data from a sample of 170 IT executives. Our results indicate that the consensus of appropriation (COA) and faithfulness of appropriation (FOA) are positively associated with IT-dependent organizational agility, and the relationships are partially mediated by IT alignment. When adoption of cloud computing is high, the positive relationship between IT alignment and IT-dependent organizational agility becomes stronger than when it is low. Interestingly, results also show that the moderating roles of the transfer of explicit knowledge and transfer of tacit knowledge in the relationship between outsourcing appropriation and IT-dependent organizational agility vary significantly. The transfer of explicit knowledge negatively moderates the relationship between COA and agility. The transfer of tacit knowledge positively moderates the relationship between FOA and agility. These findings deepen our understanding of how organizations gain IT-dependent organizational agility in the context of IT outsourcing. 相似文献
60.
王玺 《体育科技文献通报》2014,(1):44-44,51
本研究选取同批次入队的高校女子篮球运动员为研究对象,通过实验结合数据分析软梯训练对高校女子篮球运动员灵敏素质的影响,以期探索提高灵敏素质更有效地方法。 相似文献