Acute effects of different warm-up protocols on highly skilled golfers’ drive performance

Previous research has highlighted the positive effect that different warm-up protocols have on golf performance (e.g. Sorbie et al., 2016; Tilley & Macfarlane, 2012) with the design of warm-ups and programmes targeting and improving golf performance through the activation and development of specific muscle groups. This study aimed to examine the acute effects of two warm-up protocols on golf drive performance in comparison to a control condition. Using a randomised counterbalanced design over three testing sessions, twenty-three highly skilled golfers completed the control, dynamic and resistance-band warm-up conditions. Following each condition, a GC2 launch monitor was used to record ball velocity and other launch parameters of ten shots hit with the participants’ own driver. A repeated-measures ANOVA found significant increases in ball velocity (η_p² = .217) between the control and both the dynamic and resistance-band warm-up conditions but no difference between these latter two, and a reduction in launch angle between control and dynamic conditions. The use of either a dynamic stretching or resistance-band warm-up can have acute benefits on ball velocity but golfers should liaise with a PGA Professional golf coach to effectively integrate this into their golf driving performance.     

我国优秀乒乓球人才流动特征分析

通过对新中国成立以来不同时期中国优秀乒乓球人才国内、国外流动方向、范围、规模等方面的研究,探究我国优秀乒乓球人才流动的特征与趋势,结果表明:(1)优秀乒乓球人才流动始终以垂直流动为主要方式;(2)优秀乒乓球人才在国内、国际流动的区域呈现出不均衡的分布趋势;(3)优秀乒乓球人才资源丰富与基层群众文化发展的急需相矛盾、脱节;(4)优秀乒乓球人才职业转换的跨度、范围增大,自主性流动趋势增强;(5)优秀乒乓球人才的流动促进r乒乓球运动全球化整体的发展与提高,推动了中国文化的繁荣与世界文化的全面交融.     

Metacognition and Human Performance Improvement

An understanding of the uses of meta-cognition provides a powerful tool toward developing quality and efficiency in task learning and performance. Metacognition is the executive controller of cognitive processes responsible both for self regulated learning and work performance outcomes. Comprehension monitoring and motivation are two prime components of metacognition which are responsible for commitment to, and definition of, goals, monitoring progress toward goals, and activating the appropriate thinking skills to achieve goals. Specific thinking skill categories of attention, organization, and elaboration are described with examples of how specific techniques in each category can optimize learning and job performance. Research on training of metacognitive skills through both detached and embedded skill-development programs is reviewed. In addition, ways to compensate for metacognitive skills when training is not cost-effective are described. The relationship between metacognitive skills and effective management of work performance is stressed.     

我国警察体育研究的基本现状研究* ——基于Bibexcel的文献计量与可视化分析

首先对中国知网数据库中收录的以警察体育为主题的文献时序分布进行梳理,通过论文发表时间与数量的变量关系对比,分析揭示该研究领域的历史脉络、发展速度以及演变规律。随后利用信息可视化软件Bibexcel绘制出警察体育研究领域的核心作者、研究机构、高被引文献的知识图谱,阐释该领域的研究结构、力量分布以及合作平台建设等情况。最后运用词频分析、共词聚类和可视化法生成关键词共现网络图谱,挖掘、提炼文献数据背后的规律与逻辑,捕捉警察体育研究领域中的研究热点和前沿动态,并在此基础上深入探讨警察体育未来研究的基本趋势和发展方向。     

Surveying unstructured time of adults with mental retardation living in two community settings: A search for normalization

Abstract

We designed a survey to assess whether 40 randomly selected individuals, equally divided across two settings (ICF/MR, minigroup home), differed in the amounts of time spent in the community, the people with whom unstructured activities were performed, and the choice maker of unstructured activities performed in the community or in homes. Time spent in unstructured activities was divided into four subsets: performed by self, with a peer, with staff, and with family. An analysis of variance (ANOVA) indicated that individuals living in ICF/MR homes spent more time in the community with staff and made fewer choices of their unstructured activities than those living in minigroup homes. The analyses also indicated that for those retaining their own legal guardianship and living in ICF/MR homes continued to spend less time in activities they chose themselves. Of those variables reaching statistical significance, we questioned meaningful interpretations based on alternative interpretations of the raw data.