中国排球职业联赛市场化运营现状与优化路径研究

中国排球职业联赛市场化运营是职业化改革的重要组成部分,经过职业化改革,在商务运营模式多样化、高水平外援积极引进、赛制调整等方面有所优化,但仍存在诸多问题问题。建议：加快排协实体化进程,建立产权清晰的管理机制;创新排球职业联赛品牌,优化商业运营环境;灵活协调联赛与全运会,促进优秀运动员流动;构建多层级排球联盟体系,加强联赛后备人才培养,以期为我国排球项目职业化改革提供参考。     

我国排球转会市场的特征研究

本文通过对我国排球转会市场进行调查研究,发现我国的排球转会市场取得了较大的发展,制定了转会制度,放宽了转会的条件,转会规模有了较大幅度的提高。但同时存在着些许的不足,如转会制度尚不规范、转会方式单一、转会规模较小、转会市场缺乏统一的价格指导标准等。相关部门应该彻底开放球员转会市场,加快人才的流动,培育健康的转会市场。     

我国职业足球运动员转会制度研究

基于制度经济学相关理论的基本思想,以中国足协运动员转会制度两次重大调整为依据,概括了职业足球运动员转会的自由交易尝试、限制交易调整和协调交易调整三个阶段的基本特征;继而对现阶段职业足球运动员转会制度存在的主要问题和原因进行分析;最后,基于博弈理论的思想提出了构建制定运动员转会规则的博弈主体结构、明确运动员转会制度运行的博弈方式以及运动员与俱乐部劳资纠纷诉讼机制的调整思路.     

我国排球联赛市场现状探析

采用献资料法，对我国排球职业联赛市场现状进行分析研究。肯定了排球联赛市场6年来所取得的成就，也指出了排球联赛市场还存在着俱乐部有名无实，联赛冠名没有引进竞争，球队吸引资金困难且数量较小，收视率和现场观众数量少，球员转会市场冷淡，媒体对联赛宣传力度不大等问题，并提出针对性建议。     

我国排球职业联赛产业发展研究

通过对我国排球职业联赛现行运行机制的分析和研究,提出促进我国排球职业联赛产业可持续发展的相应对策。从可持续发展的角度出发,我国排球职业联赛的运行机制应向现代职业体育俱乐部的方向发展,在管理、经营、激励、约束、监管、后备人才的储备和培养以及品牌打造等方面建立相应的运行机制。     

中职篮转会制度的研究

本文对我国职业篮球转会制度的历史进程进行了梳理和研究,探讨转会制度对中国职业篮球发展的影响.     

中国职业足球运动员转会制度研究

在现阶段,就中国足球俱乐部的转会管理应规范化,分别理顺球队和球员之间的关系,制定和完善保障球员转会的管理机制,具有极其重要的意义。本文将围绕中国足球运动员转会制度的发展,指出现行转会制度存在的问题,以期促进我国职业足球运动的健康发展。     

我国排球联赛的现状、问题及对策研究

本文以我国排球联赛作为研究对象，运用调查和逻辑分析等研究方法，对全国排球联赛的现状及参赛俱乐部积极性不高、企业投资热情不足、运动员教练员流动不通畅及联赛市场清淡等存在的有关问题进行了初步研究和探讨，提出了选择联赛市场新的突破口，扩大宣传力度，推出明星，提高解说员的解说水平等对策，建议目前的主客场制变成主客城制，同时开展明星对抗赛，利用媒体炒作使排球赛场成为宣传各企业产品的必争之地。     

基于俱乐部、运动员委托代理的我国职业篮球运动员转会制度研究

运动员转会中俱乐部与运动员委托代理之间所产生的委托代理问题是目前我国职业篮球运动员转会制度存在的主要问题之一。基于如何建立有效职业篮球运动员转会制度,以便更好地解决俱乐部与运动员之间委托代理问题的研究逻辑,采用文献论证、专家访谈、案例分析等研究方法,通过俱乐部与运动员之间委托代理的混合策略博弈分析,对我国职业篮球运动员转会制度进行研究,认为我国职业篮球运动员转会制度存在激励机制不完善、处罚机制乏力等问题。提出通过事前激励、事中监督、事后处罚等完善运动员转会制度的具体路径,以期为运动员转会制度改革提供参考。     

我国职业篮球运动员转会制度及相关法律问题

将我国职业篮球联赛与国际上先进的联赛制度进行对比。分析我国当前职业篮球转会制度的优、缺点，对我国职业联赛转会过程中出现的纠纷从法律角度方面进行分析，提出我国的转会制度应加强立法工作。使转会制度趋于职业化、合理化、法制化。     

中国职业排球俱乐部研究现状述评

对中国职业排球俱乐部的性质、组织机制、管理体制以及职业排球俱乐部成立的内部、外部条件和存在的问题进行了评述。     

Groin injuries in professional rugby league players: a prospective study

Altogether, 100 uninjured professional rugby league players were evaluated over a 2-year period. Their height, body mass, sum of skinfolds, girths and bone diameters were recorded. A Cybex 340 isokinetic dynamometer was used to determine peak torque, work, power, endurance ratios and peak torque ratios of the hip abductors and adductors (5 repetitions at 0.52 and 2.08 rad. s(- 1); 20 repetitions at 3.66 rad. s(- 1)) and knee flexors and extensors (4 repetitions at 1.04 and 3.14 rad. s(- 1); 30 repetitions at 5.22 rad. s(- 1)). Hip abduction and adduction were also assessed with the hip in external rotation. Discriminant function analysis was conducted on all predictor variables to develop a multivariate predictive model capable of classifying players with a high degree of accuracy into groups with and without a groin injury. The model consisted of eight variables and correctly classified 91.7% of the non-injured players and 90.5% of the injured players. The correct classification for the model as a whole was 91.4%. The aetiological factors identified as being related to injury of the groin musculotendinous unit included abduction and adduction-with-rotation peak torque, angle of adduction and abduction-with-rotation peak torque, strength ratio of hip muscle groups, bilateral difference in extension peak torque, femur diameter and body mass.     

The relationship between strength asymmetries and jumping performance in professional volleyball players

Knee peak torque (PT) is associated to jump performance in volleyball players. It is not clear whether muscle strength imbalances of the knee joint can influence jump performance. The purpose of study was to analyse the association between PT and knee muscular imbalances with jump performance in professional volleyball players. Eleven elite male volleyball players (90.3 ± 9.7 kg body mass and 1.94 ± 0.06 m height) were evaluated in an isokinetic dynamometer at speeds of 60, 180 and 300 deg/s. Muscle strength imbalances were obtained through calculation of contralateral deficit between limbs and the conventional ratio (hamstrings/quadriceps). Countermovement jump (CMJ) was performed on a force plate to calculate mechanical power and height. Association was found between knee extensor PT at 180 deg/s with CMJ power (r = 0.610, p = 0.046). Conventional ratio at 300 deg/s showed negative association with CMJ (r = ?0.656, p = 0.029). The optimal ratio between knee extensors PT in relation to the flexors PT is associated with the greater mechanical power in CMJ. Contralateral deficit does not seem to be associated with the CMJ performance. Considering the knee extensor PT is associated with CMJ power, our findings suggest that strength-based training in volleyball athletes should not omit the conventional muscle ratio.     

职业足球联赛球场暴力的成因及对策

中外男子足球职业联赛球场暴力行为有逐年上升趋势；球场暴力从表面上看与裁判的判罚有直接关系，但实际是多种综合因素导致；遏制足球球场暴力，关键要做好对广大球迷的教育与疏导工作，同时要加强完善职业足球裁判员管理制度，减少误判、错判发生的机率，发挥媒体正面宣传作用；警方应进一步加强球场的安全保卫工作，借鉴世界足球先进国家在防范与治理球场暴力方面的经验。     

Skill qualities as risk factors for contact injury in professional rugby league players

Abstract We investigated the relationship between skill qualities and contact injury risk in professional rugby league players. Sixty-six professional rugby league players aged 23?±?4 years (mean?±?s) participated in this three-year prospective study. Players underwent assessments of tackling proficiency, dual-task draw-and-pass proficiency, reactive agility, pattern recall, and pattern prediction. The frailty model was applied to calculate the adjusted risk ratios of injury. When the players' age and playing position were adjusted in the frailty model, the risk ratios showed that reactive agility was a predictor for the risk of injury. Players with reactive agility decision times of >80?ms had a lower incidence (relative risk?=?0.68, 95% CI 0.47-0.98, P?=?0.04) of injuries than players with reactive agility decision times of ≤80 ms. Although there was no relationship between injury and the majority of skill qualities (P?=?0.47-0.93), players with poor reactive agility performances (specifically longer decision times) had a lower risk of injury, suggesting that poor perceptual skill is protective against contact injuries in professional rugby league players. These players might inadvertently avoid the heavy collisions that result in injury, or at best result in partial contact that does not result in exposure to the full force of a tackle.     

沙滩排球训练对女排运动员弹跳肌群等速向心收缩肌力影响的比较研究

为探讨在沙滩这种特殊的介质上进行排球训练对运动员膝、踝关节肌群肌力的影响．在1998年沙滩排球训练周期前后．对我国12名兼职沙滩女排运动员的膝、踩关节屈伸肌群进行了等速向心收缩肌力测试。结果表明。沙滩训练后．膝关节屈肌群快肌纤维的爆发力．伸肌群快肌纤维的最大肌力和爆发力,踝关节跖肌群慢、快肌纤维的最大肌力和爆发力增长有显性意义。这是沙滩训练后原地纵跳成绩提高的重要肌力原因。     

大连市职业足球运动员保险市场发展状况研究

采用文献资源法、问卷调查法和数理统计法对大连市两家职业足球俱乐部运动员的保险情况进行调查,并对体育保险市场供给、需求状况进行分析,以期为职业足球联赛的健康、可持续发展提供参考.     

排球运动员的弹跳力训练

提高排球运动员的弹跳力,对于提高排球运动员的各种扣球、拦网、跳发球技术,丰富排球运动的各种战术形式及其变化,都起着至关重要的决定性作用。文章就弹跳力方面进行了理论分析并提出了训练建议。