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   

全民健身背景下马拉松项目的发展现状分析     

张曼  路佳  张雅飞 《当代体育科技》2020,(10):194-195

近年来,我国马拉松项目在快速的发展,各城市都在积极举办马拉松项目,促进体育消费的增长,推动全民健身的热潮,有利于城市经济转型发展。但是,马拉松项目的发展存在一些问题,如群众基础差、专业化程度低、宣传力度不够等。本文基于全面健身背景下,探讨分析马拉松项目的发展现状。  相似文献   

体育赛事立法效力制约因素探微     

李俊  梁恒 《当代体育科技》2020,(11):216-217

对以体育竞赛为核心内容的体育赛事立法是国际通行做法,目的就是要在有关体育赛事法律的保障下使得体育竞赛的各事项正常有序进行。体育赛事立法效力就是指拥有立法权的部门或依法受权立法部门针对体育赛事运行阶段所制定、修改、补充和废止一些规范性文件,在具体实施过程中所产生的效果和作用力。体育赛事运行涉及的人多、事杂、域广,其聚集性、综合性和体验性等特点决定了体育赛事立法效力具有时空相对聚集、立法层级较低、对象范围有限、公共权利保障性与包容性兼备等特殊性;影响其立法效力的因素主要有从体育赛事运行的秩序化客观需求出发的现实性、立法活动的合法性、立法程序的有效性、法律位阶的层级性及立法内容的专业性。  相似文献   

高中立定三级跳远教学与训练策略     

林池森 《当代体育科技》2020,(12):93-94

在高考制度深化改革的背景下,高中阶段的学科教学越来越注重学生身体素质的培养,体育成为高考必考的一门科目。为了强化高中生的锻炼身体意识,使其拥有健康的心态和强健的体魄,高中体育课堂上出现了越来越多的运动项目与教学内容,如立定三级跳远等,有利于丰富课堂内容,锻炼学生的各种运动能力。本文针对高中立定三级跳远教学与训练策略展开分析。  相似文献   

大型体育赛事传播助力成都市城市形象优化路径研究     

张为芳  韩海军 《当代体育科技》2020,(9):197-198

体育赛事的举办是城市发展的需求,一个城市大型体育赛事的成功举办,不仅能积极提高城市的知名度和影响力,还能展现出主办城市的文化建设发展风貌,增强城市对外的吸引力。本文运用文献资料法、问卷调查法、数理统计法等研究方法,以2019国际篮联三对三世界巡回大师赛(成都站)为研究对象,探索大型赛事对提升赛事传播力和形象上的提升,进而研究助力成都市城市形象优化路径的方法。建议:搭建多元化的传播策略,扩大宣传辐射面;激发全民参与运动的热情,增加全民健身设施;聚焦赛事文化创意产业,带动经济多样化发展。  相似文献   

Association between knee-to-hip flexion ratio during single-leg vertical landings,and strength and range of motion in professional soccer players     

Gustavo Leporace  Marcio Tannure  Gabriel Zeitoune  Leonardo Metsavaht  Moacir Marocolo  Alex Souto Maior 《Sports biomechanics / International Society of Biomechanics in Sports》2020,19(3):411-420

Abstract

The aim of this study was to test the correlation between knee-to-hip flexion ratio during a single leg landing task and hip and knee strength, and ankle range of motion. Twenty-four male participants from a professional soccer team performed a continuous single leg jump-landing test during 10s, while lower limb kinematics data were collected using a motion analysis system. After biomechanical testing, maximal isometric hip (abduction, extension, external rotation), knee extension and flexion strength were measured. Maximum ankle dorsiflexion range of motion was assessed statically using the weight bearing lunge test. Pearson correlation coefficients were calculated to determine the associations between the predictor variables (knee and hip strength, and ankle ROM) and the main outcome measure (knee-to-hip flexion ratio). Correlation between knee-to-hip flexion ratio and hip abductors strength was significant (r = ?0.47; p = 0.019). No other significant correlations were observed among the variables (p > 0.05). These results demonstrated that a lower hip abductors strength in male soccer players was correlated with a high knee-to-hip flexion ratio during landing from a single leg jump, potentially increasing knee overload by decreasing energy absorption at the hip. The results provide a novel proposal for the functioning of hip muscles to control knee overload.  相似文献   

Assessing volunteer satisfaction at the London Olympic Games and its impact on future volunteer behaviour     

Minhong Kim  Steven Suk-Kyu Kim  May Kim  James J. Zhang 《Sport in Society》2019,22(11):1864-1881

Abstract

In recent years, volunteering has received strong research attention from both scholars and practitioners. For the most part, involvement in volunteer activities has been identified as an important determinant of future volunteering. Through revalidating an existing instrument, the purpose of this study was to assess the dimensions of volunteer satisfaction at the 2012 London Olympic Games and its impact on future volunteer behaviour. The findings of this study shed light on the identification of volunteer satisfaction factors in the mega sporting event setting, particularly for a unique type of volunteer (i.e. media worker) assigned to a special set of tasks. Unlike Galindo-Kuhn and Guzley’s results that revealed participation efficacy and group integration to be strong predictors of volunteer satisfaction, organizational support was the primary predictor for media centre volunteers’ re-participation intention towards future volunteering programmes.  相似文献   

价值链视角下杭州马拉松赛事品质提升研究     

胡炬波  王俊杰  刘思奥 《浙江体育科学》2020,(3):42-47

采用文献查阅、专家访谈、实地调查等方法,对杭州马拉松赛事提升进行了研究。基于价值链理论,分析了该项赛事在策划、营销、开发、筹备、生产、服务等各环节的现状,认为其存在风险管理机制急需补全、媒体宣传运营有待加强、商业运作稍显薄弱、赛道设计亟待优化、赛事服务尚可完善等问题,并就赛事品质提升给出相关建议。  相似文献   

我国马拉松跑者深度休闲特质的质性研究     

田海波  周文婷  邱亚君  齐震 《沈阳体育学院学报》2020,(1):54-60

在"马拉松热"的背景下,对跑步参与过程中马拉松跑者的深度休闲特质进行探究。采用滚雪球抽样方式,对20名马拉松跑者进行半结构式访谈,通过质性分析软件NVivo 11.0对访谈资料进行分析。研究结果表明马拉松跑者具有深度休闲的6个特质:坚持不懈、生涯性、显著的个人努力、强烈的认同感、独特的文化、持久的收益。本研究进一步丰富了已有研究成果,其中坚持不懈中的"毅力"和"自我管理"两方面体现了马拉松项目的特点。对马拉松跑者来讲,经济回报和团队发展并不是明显的持久收益。本研究结果拓展了对我国"马拉松热"现象的理解,未来应采用定量方法进行深入研究。  相似文献   

“翻转课堂教学模式”在小学体育教学改革实践中的运用研究--以小学三年级《立定跳远》教学为例     

桂洁 《当代体育科技》2020,(12):11-13

立定跳远,在小学三年级的体育教材中被列为学习跳跃的主要教学内容,为了提高了教学的效率和质量,教师经过多次教学改革实践,从传统的"挤牙膏式"的教学,再到套入情境的教学,最后运用翻转课堂教学模式进行教学,一步步地实践并对比和反思,发现运用"翻转课堂教学模式"的立定跳远课不但有趣还有效,教学效果得到明显提高。  相似文献