Optimised force-velocity training during pre-season enhances physical performance in professional rugby league players     

Adam Simpson  Mark Waldron  Emily Cushion  Jamie Tallent 《Journal of sports sciences》2021,39(1):91-100

ABSTRACT

The effectiveness of 8-week force-velocity optimised training was assessed in highly trained professional rugby league athletes. Players (age 24 ± 3 years; body mass 94.9 ± 21.6 kg; height 181.3 ± 6.0 cm) were strength-matched and assigned to a force-velocity optimised group (OP; n = 15) or a general strength-power group (GP; n = 14). Tests included 10-m, 20-m sprints, 3 repetition-maximum squat and squat jumps over five load conditions to ascertain vertical force-velocity relationship. ANCOVA revealed there was a group effect for force-velocity deficit (P < 0.001), with the OP two-fold greater than the GP group (OP pre: 51.13 ± 31.42%, post: 62.26 ± 31.45%, GP pre: 33.00 ± 19.60%, post: 31.14 ± 31.45%, P < 0.001). There were further group effects for 3RM squat (OP pre: 151.17 ± 22.95 kg, post: 162.17 ± 24.16 kg, GP pre: 156.43 ± 25.07 kg, post: 163.39 ± 25.39 kg, P < 0.001), peak power (OP pre: 3195 ± 949 W, post: 3552 ± 1033 W, GP pre: 3468 ± 911 W, post: 3591 ± 936 W, P < 0.001), and SJ (OP pre: 39.79 ± 7.80 cm, post: 42.69 ± 7.83 cm, GP pre: 40.44 ± 6.23 cm, post: 41.14 ± 5.66 cm, P < 0.001). Prescribing F-V deficit training is superior for improving physical performance within highly trained RL players.  相似文献   

高校图书馆中华传统文化立体阅读推广探究——以北京师范大学图书馆“二十四节气”阅读推广为例     

孙媛媛  张玲  于静  张珅 《图书情报工作》2020,64(9):57-64

[目的/意义] 以北京师范大学图书馆"二十四节气"传统文化立体阅读推广为例，探讨基于中华传统文化的高校图书馆立体阅读推广模式。[方法/过程] 论述高校图书馆开展中华传统文化阅读推广的意义及采用立体阅读模式的必要性，从活动准备、活动内容和特点、活动效果评价三方面阐述北京师范大学图书馆"二十四节气"传统文化阅读推广工作。[结果/结论] 提出高校图书馆以立体阅读模式开展中华传统文化阅读推广的策略。  相似文献   

Visual function,performance, and processing of basketball players vs. sedentary individuals     

Jesús Vera  Raimundo Jimnez  David Crdenas  Beatriz Redondo  Jos Antonio García 《运动与健康科学(英文)》2020,9(6):587-594

BackgroundAthletes tend to have better visuo-motor performance than do sedentary individuals. However, several basic visual-function and perceptual parameters remain unexplored to date. In this study, we investigated whether differences exist in visual function, performance, and processing between basketball players and individuals without a sport-involvement background.MethodsA total of 33 healthy men with no visual impairment or pathology were divided into 2 groups, depending on the involvement in sport (semi-professional basketball players and sedentary individuals). We tested their baseline heart-rate variability in the resting position apart from subjective questionnaires to determine their physical fitness level, and we checked their visual function, performance, and processing through an extended battery of optometric tests.ResultsThe 2 groups differed in resting heart-rate variability parameters (p < 0.001), confirming their dissimilarities in regular time practising sports per week. The basketball players showed a closer breakpoint and recovery nearpoint of convergence, a higher fusional-vergence rate, better discriminability halos, and better eye–hand coordination (all p values < 0.05).ConclusionThese results show evidence that athletes, basketball players in this case, exhibit better performance in several visual abilities in comparison to a group of individuals without sporting backgrounds, suggesting an improvement due to the systematic involvement of those skills during basketball practice.  相似文献   

试析高校排球教学中运动损伤的预防     

衷淑萍  邹春英 《当代体育科技》2020,(10):29-29,31

在高校排球教学工作中,做好对运动损伤的预防研究是保证课堂教学质量,实现对学生排球能力培养的关键教育措施。笔者结合实践教学经验,在文中先对排球运动损伤类型进行简述,之后分析了高校排球教学运动损伤的成因,最后对高校排球教学运动损伤的预防策略予以探讨,旨在促进高校排球教学质量的提升,实现对学生的全面素质培养。  相似文献   

中国式摔跤“竞技运动教材化”在大学教学中的思考研究     

李凯韬 《当代体育科技》2020,(12):130-131

本文主要通过文献资料法、逻辑分析法等方法对我国中国式摔跤"竞技运动教材化"的发展现状及该运动发展中存在的问题进行研究分析。研究表明:中国式摔跤"竞技运动教材化"具有无限可能,可以通过提炼专项运动的核心元素,并着重排除过度专业化的素材,使课程保留中国式摔跤运动的半专业性,使大众了解这项运动的价值,并鼓励更多的人参加这项运动。  相似文献   

【新水令】曲牌风格流变探析     

王方好  阎方正 《保定学院学报》2020,(1):85-91

曲牌【新水令】由同名词牌演化而来,最初被运用在南戏《张协状元》之中,用于表达慷慨激越的感情风格。该曲牌具有较强的灵活性,从元代到清代,其题材不断被拓宽,感情色彩也不断发生变化,不再局限于慷慨激越的声情风格,表达的情感也更为丰富。分析梳理【新水令】这一曲牌在元明清三代的风格变化,可以对其有更为深入的了解,亦有助于对于曲史样式的研究。  相似文献   

审美视域下中国艺术人格的精神建构     

张嫣格 《美育学刊》2020,11(1):107-111

在新的文化语境下,作家、艺术家以中国艺术精神为参照系,在文艺创作中探索中国艺术人格的精神建构。在中西文化的对峙中,中国艺术人格立足于传统文人精神,着眼于和谐社会,强调主体审美自觉,追求人格的价值尺度,使中国人格美学思想既具有现实关怀又充满人文精神。  相似文献   

中国传统产业继承对创新质量的影响研究          下载免费PDF全文

张东婷  宋傲男  袁红梅 《科研管理》2019,40(2):1-11

摘要 为研究科学与现有技术对中国传统产业技术创新质量的影响，促进传统产业对科学和现有技术的继承。本文以中药上市企业的中药专利数据为样本，使用零膨胀负二项回归和突变级数法，从静态和动态两个维度分析了中药继承对创新质量影响。发现专利引文数量对创新质量有稳健的消极影响，跨技术领域引证2004年后对创新质量有积极影响，科学引文数量对创新质量随时间由消极影响转变为积极影响，技术标准和古代医药典籍在2003-2004年对创新质量有积极影响，现代医药图书在整体上对创新质量有积极影响。  相似文献   

广东省中药高新技术企业知识产权创新效率研究     

梁凯桐  刘子志  古立其 《科技管理研究》2019,(22)

目的：对2017年广东省中药高新技术企业（简称“高企”）知识产权创新效率进行静态评价。方法：运用DEA模型对90家广东省中药高企从每家企业及不同规模两个维度进行综合效率、纯技术效率、规模效率及规模效益分析。结果：全省有70%的中药高企综合效率不能保持在1的水平，有50%的中药高企纯技术效率达不到1，有21%的中药高企规模收益处于递减状态；大型中药高企效率平稳，中型中药高企处于迅速发展阶段，小型中药高企仍处于起步阶段。结论：为了提高中药高企知识产权的质量，本研究认为应该精简中药研发费用，重视企业中药研发软实力如中药知识产权数据库等方面的建设；建立中药“技术—知识产权”合作模式，形成专利池；将中药知识产权管理工作深化、常态化。  相似文献   

Coping with cultural differences in healthcare: Chinese immigrant mothers’ health information sharing via WeChat     

《Int J Intercult Relat》2021

Immigrants face the challenge of obtaining culturally specific health information and adapting to a new healthcare system. Through qualitative content analysis, this study explores how Chinese immigrant mothers use the ethnic social media—WeChat to engage in health information sharing and coping with cultural differences in healthcare between the U.S. and China. Based on the data collected from one WeChat group in a metropolitan city in the northeastern U.S., Chinese immigrant mothers frequently discuss the topics of “doctors and hospitals,” “insurance and cost,” “medicine and treatment,” and “alternative health care.” They constantly compare Chinese health care beliefs and practices with western ones. They adopt various acculturation strategies to manage the cultural differences in healthcare beliefs, practices, and systems. We call for future research to further examine immigrants’ health information sharing via social media and consider acculturation as coping strategies or processes in the health communication context.  相似文献