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1.
本文初步探讨现代奥运会的复兴与发展的问题。现代奥运会复兴的思想基础及客观条件；现代国际奥委会的成立准备、发起过程和组织的成立及现代奥运会的召开；国际奥委会的性质和作用；国际奥委会及奥运会的宗旨、原则、宪章、格言、会旗；现代奥运会的发展概况。  相似文献   

2.
开展全国亿万学生阳光体育运动的认识与思考   总被引：16，自引：0，他引：16  
分析开展全国亿万学生阳光体育运动的历史及现实意义，阐述开展现状及实施步骤。认为：开展全国亿万学生阳光体育运动，国家完善相关法规及体制是保证；提高体育课质量，搞好校内外体育活动是关键；对各级各类学校相关人员进行培训是基础；将此项工作纳入考核内容是导向；建立学校管理监督机构、规章制度及评价体系是核心。  相似文献   

3.
笔者根据自己多年的教学实践，总结了高校女生排球专项教学的规律及方法。即把握心理体验的规律；把握认识规律；把握课堂内外结合的规律；抓住排球集体配合的特点；融洽师生关系等。  相似文献   

4.
乒乓圈     
《乒乓世界》2005,(5):8-9
大众汽车第48届世界乒乓球锦标赛组织委员会成员及各部门负责人名单；球台故事；孔令辉、王励勤、马林乒超转会；朱世赫前途未卜；徐寅生在上海久隆中学做报告；乒趟联赛LOGO揭晓；北大方正俱乐部进军乒超。  相似文献   

5.
低氧暴露及低氧训练对体重的影响   总被引：5，自引：0，他引：5  
黄徐根  徐建方  冯连世 《体育科学》2006,26(3):86-93,96
对国内、外关于低氧暴露及低氧训练对人体及动物体重影响的最新研究成果进行综述，分析了低氧暴露及低氧训练导致人体及动物体重下降的现象及可能原因；介绍营养品补充对低氧暴露时体重变化的影响；展望并分析低氧训练在运动员减体重中的应用。  相似文献   

6.
锌·自由基与运动   总被引：7，自引：0，他引：7  
本文介绍了自由基的特征及对人体的损伤；微量元素锌对人体的作用；通过运动、补充维生素及中药等对提高机体的抗氧化能力、增强运动能力、延缓衰老的作用。  相似文献   

7.
阐述了开放教育数学课程教学模式的改革实践：集中辅导教学过程模式的探索；实践教学过程模式的探索；加强网上教学及资源的建设；探索更加合理有效的质量评价和考核方式。  相似文献   

8.
提高学生跳跃能力；发展学生协调、灵敏、耐力及下肢力量素质；培养学生团结协作精神及顽强拼搏的意志品质。  相似文献   

9.
社会主义市场经济与体育   总被引：1，自引：0，他引：1  
对提出建立社会主义市场经济体制以来，我国体育界关于“市场经济与体育”的若干理论讨论进行了综述。其中包括：社会主义市场经济对体育的影响；市场经济条件下体育体制的改革；体育产业及体育产业化，如何认识体育市场；体育市场现状与前景的估计；如何培育和开拓体育市场；体育法制建设；国家宏观调控和政府职能转变；如何认识社会主义市场经济条件下体育的社会效益与经济效益九个方面的问题。  相似文献   

10.
中国体育场馆设施的发展经历了国民经济建设初期的探索阶段；极左思想及退潮时期的艰难阶段；改革开放新时期的蓬勃发展阶段；向市场经济转型过程中的多元化发展阶段。在不同时期的发展阶段体现了场馆设施的不同特点、不同方向及对国家体育事业做出的不同贡献。  相似文献   

11.
This study aimed to explore the strength of the force–velocity (F–V) relationship of lower limb muscles and the reliability of its parameters (maximum force [F0], slope [a], maximum velocity [V0], and maximum power [P0]). Twenty-three men were tested in two different jump types (squat and countermovement jump: SJ and CMJ), performed under two different loading conditions (free weight and Smith machine: Free and Smith) with 0, 17, 30, 45, 60, and 75?kg loads. The maximum and averaged values of F and V were obtained for the F–V relationship modelling. All F–V relationships were strong and linear independently whether observed from the averaged across the participants (r?≥?0.98) or individual data (r?=?0.94–0.98), while their parameters were generally highly reliable (F0 [CV: 4.85%, ICC: 0.87], V0 [CV: 6.10%, ICC: 0.82], a [CV: 10.5%, ICC: 0.81], and P0 [CV: 3.5%, ICC: 0.93]). Both the strength of the F–V relationships and the reliability of their parameters were significantly higher for (1) the CMJ over the SJ, (2) the Free over the Smith loading type, and (3) the maximum over the averaged F and V variables. In conclusion, although the F–V relationships obtained from all the jumps tested were linear and generally highly reliable, the less appropriate choice for testing the F–V relationship could be through the averaged F and V data obtained from the SJ performed either in a Free weight or in a Smith machine. Insubstantial differences exist among the other combinations tested.  相似文献   

12.
Abstract

The aim of this study was to determine potential relationships between anthropometric parameters and athletic performance with special consideration to repeated-sprint ability (RSA). Sixteen players of the senior male Qatar national soccer team performed a series of anthropometric and physical tests including countermovement jumps without (CMJ) and with free arms (CMJwA), straight-line 20 m sprint, RSA (6 × 35 m with 10 s recovery) and incremental field test. Significant (P < 0.05) relationships occurred between muscle-to-bone ratio and both CMJs height (r ranging from 0.56 to 0.69) as well as with all RSA-related variables (r < –0.53 for sprinting times and r = 0.54 for maximal sprinting speed) with the exception of the sprint decrement score (Sdec). The sum of six skinfolds and adipose mass index were largely correlated with Sdec (r = 0.68, P < 0.01 and r = 0.55, P < 0.05, respectively) but not with total time (TT, r = 0.44 and 0.33, P > 0.05, respectively) or any standard athletic tests. Multiple regression analyses indicated that muscular cross-sectional area for mid-thigh, adipose index, straight-line 20 m time, maximal sprinting speed and CMJwA are the strongest predictors of Sdec (r2 = 0.89) and TT (r2 = 0.95) during our RSA test. In the Qatar national soccer team, players’ power-related qualities and RSA are associated with a high muscular profile and a low adiposity. This supports the relevance of explosive power for the soccer players and the larger importance of neuromuscular qualities determining the RSA.  相似文献   

13.
The aim of this study was to evaluate the predictive potential provided by two ventilatory inflection points (VIP1 and VIP2) examined in field without using gas analysis systems and uncomfortable facemasks. A calibrated respiratory inductance plethysmograph (RIP) and a computerised routine were utilised, respectively, to derive ventilation and to detect VIP1 and VIP2 during a standardised field ramp test on a 400 m running track on 81 participants. In addition, average running speed of a competitive 1000 m run (S1k) was observed as criterion. The predictive value of running speed at VIP1 (SVIP1) and the speed range between VIP1 and VIP2 in relation to VIP2 (VIPSPAN) was analysed via regression analysis. VIPSPAN rather than running speed at VIP2 (SVIP2) was operationalised as a predictor to consider the covariance between SVIP1 and SVIP2. SVIP1 and VIPSPAN, respectively, provided 58.9% and 22.9% of explained variance in regard to S1k. Considering covariance, the timing of two ventilatory inflection points provides predictive value in regard to a competitive 1000 m run. This is the first study to apply computerised detection of ventilatory inflection points in a field setting independent on measurements of the respiratory gas exchange and without using any facemasks.  相似文献   

14.
Abstract

In spite of the increased acceptance of artificial turf in football, few studies have investigated if matches are altered by the type of surface used and no research has compared physiological responses to football activity on artificial and natural surfaces. In the present study, participants performed a football match simulation on high-quality artificial and natural surfaces. Neither mean heart rate (171 ± 9 beats · min?1 vs. 171 ± 9 beats · min?1; P > 0.05) nor blood lactate (4.8 ± 1.6 mM vs. 5.3 ± 1.8 mM; P > 0.05) differed between the artificial and natural surface, respectively. Measures of sprint, jumping and agility performance declined through the match simulation but surface type did not affect the decrease in performance. For example, the fatigue index of repeated sprints did not differ (P > 0.05) between the artificial, (6.9 ± 2.1%) and natural surface (7.4 ± 2.4%). The ability to turn after sprinting was affected by surface type but this difference was dependent on the type of turn. Although there were small differences in the ability to perform certain movements between artificial and natural surfaces, the results suggest that fatigue and physiological responses to football activity do not differ markedly between surface-type using the high-quality pitches of the present study.  相似文献   

15.
The aim of this study was to compare the kinetic and kinematic parameters of standing and crouch sprint starts. Parallel starts (PS), false starts (FS), jump starts (JS) and crouch starts (3PS) were compared. Eighteen participants performed each start on a force plate and six infrared cameras captured the three-dimensional coordinates of 36 retro-reflective markers. Performance during a five-metre sprint (T5m) was analysed. Duration of the start phase (Tstart), mean values of horizontal and total ground reaction forces (GRFs) (Fx_mean and Ftot_mean), ratio of force (RF), maximal power (Pmax) and kinetic energy (KE) of each limb were calculated. Significant differences were found for T5m, Tstart, KE, Pmax, Fx_mean, Ftot_mean and RF for the crouch start compared to the other starts (P ≤ 0.05). Significant correlations were found between T5m and Tstart (r = 0.59; P ≤ 0.001), and T5m and Pmax, Fx_mean and RF (?0.73 ≤ r ≤ ?0.61; P ≤ 0.001). To conclude, the crouch start resulted in the best performance because Tstart was shorter, producing greater Pmax, Fx_mean with a more forward orientation of the resultant force. Greater KE of the trunk in each start condition demonstrated the role of the trunk in generating forward translation of the centre of mass (CM).  相似文献   

16.
Abstract

This study investigated the influence of the regression model and initial intensity during an incremental test on the relationship between the lactate threshold estimated by the maximal-deviation method and performance in elite-standard runners. Twenty-three well-trained runners completed a discontinuous incremental running test on a treadmill. Speed started at 9 km · h?1 and increased by 1.5 km · h?1 every 4 min until exhaustion, with a minute of recovery for blood collection. Lactate–speed data were fitted by exponential and polynomial models. The lactate threshold was determined for both models, using all the co-ordinates, excluding the first and excluding the first and second points. The exponential lactate threshold was greater than the polynomial equivalent in any co-ordinate condition (P < 0.001). For both models, the lactate threshold was lower when all co-ordinates were used than when the first and the first and second points were excluded (P < 0.001). 10-km race pace was correlated with both the exponential and polynomial lactate thresholds for all the co-ordinate conditions (r ≥ 0.75, P < 0.001 and r ≥ 0.56, P < 0.05, respectively). The results suggest that the exponential lactate threshold should be used instead of the polynomial equivalent since it is more strongly associated with performance and is independent of the initial intensity of the test.  相似文献   

17.
Background: Though musli m females exclusion from physical activities and sports has concerned scholars for years, they are still being theorized out of context and out of history and not as agents in their own lives. Within the prevailing context of the ‘War on Terror,’ muslim females are becoming more racialized in sports and are unnecessarily constructed as needing protection and void of any agency. In 2010, a crisis emerged out of the International Federation of Association Football's (FIFA) erratic interpretation of Law 4 which excluded muslim females players with a head/cover gear deemed unsafe on the field. This crisis highlighted the importance of understanding not only the targeted exclusion of muslim female players but also the importance of working with muslim female national football players and the possibilities of them resisting the racializing and gendering logics of a mega-sport institution such as FIFA.

Purpose: The purpose of this paper is to understand how five women football players on the Jordanian national team negotiated FIFA's ‘hijab ban’ of 2011. Particularly, it seeks the perspectives of the players themselves – whether they are wearing the head and/or neck cover or not and whether their muslimness is visible or not – and their stories of how they negotiated FIFA's ‘hijab ban’ (2011–2012).

Methodology: This paper is part of a larger critical qualitative study based on (1) dialogical interviews with five football players on the Jordanian national team, (2) material the players crafted and used to campaign against FIFA's ‘hijab ban,’ (3) players’ journals, (4) email correspondence and (5) web-based campaigning material. I deploy arab-muslim feminist scholars’ more complicated understanding of the hijab and theorize of how muslim women's bodies are regulated by two interconnected hijabophobias, the Islamist and Western-Islamophobic.

Findings: The findings are organized in the following themes: (1) experiencing humiliation and injustice, (2) exposing FIFA's Islamophobic standpoint and (3) resisting through solidarity and activism. The results suggest that the muslim female football players on the Jordanian national team exposed the FIFA's Islamophobic hijabophobia in its interpretation of Law 4. They acted with resilience and political savviness to regain the right to play while being muslim female under FIFA's laws. This suggests that muslim females are active agents in their own lives and on a global level. They are able to counter the racializing injustices produced by very powerful sport institutions. Non-muslim/Western policy-makers, researchers, teachers and trainers working among muslim women and youth need to consider this example as a frame to their participatory research, critical pedagogies, and physical education (PE) and sport curricula. They need to recognize that we are living a moment in history in which muslim women's bodies are sites of both the Islamist and the colonialist anxieties in their struggles for power. Thus, they need to urgently be engaged in the theories and pedagogical approaches that challenge both the Islamist and the Islamophobic hijabophobias in sport and PE.  相似文献   

18.
ABSTRACT

This study aimed to examine: (i) the effect of decreasing training load (TL) during taper weeks on physical match activities in professional soccer players, and (ii) to disclose the relationship between weekly TL and physical match activities. Rating of perceived exertion was collected after each training session and match to quantify the TL in 19 professional players over 17 standard and 7 taper weeks during the season. Physical match activities were quantified by a computerised match analysis system and compared between standard training and taper weeks. Compared to standard weeks, the duration and frequency of training sessions during the taper weeks decreased (?21.7% and ?18.8%, respectively; P < 0.01) with no change in intensity (?4.8%; P = 0.09). Consequently, the weekly TL decreased during the taper weeks (?25.5%; P < 0.01). Increases in distance covered by intense running (+15.1%; P < 0.05), high-intensity running (HIR) (+15.7%; P < 0.01), number of sprints (+17.8%; P < 0.05) and number of high-speed runs (+15.7%; P < 0.05) were observed during the seven matches played after the taper weeks. High relationships were observed between TL and HIR distance covered, number of HIR and number of sprints (r = ?0.53; r = ?0.55; r = ?0.65, respectively; P < 0.01). Decreasing TL during taper weeks by reducing training duration and frequency but maintaining intensity was associated with an increase in physical activities during matches. However, it needs to be determined whether tapering or other match factors led to the changes in match activity.  相似文献   

19.
Abstract

The aim of this study was to compare optimization and correction procedures for the determination of peak power output during friction-loaded cycle ergometry. Ten male and 10 female sports students each performed five 10-s sprints from a stationary start on a Monark 864 basket-loaded ergometer. Resistive loads of 5.0, 6.5, 8.0, 9.5, and 11.0% body weight were administered in a counterbalanced order, with a recovery period of 10 min between sprints. Peak power was greater and occurred earlier, with less work having been done before the attainment of peak power, when the data were corrected to account for the inertial and frictional characteristics of the ergometer. Corrected peak power was independent of resistive load (P > 0.05), whereas uncorrected peak power varied as a quadratic function of load (P < 0.001). For males and females, optimized peak power (971 ± 122 and 668 ± 37 W) was lower (P < 0.01) than either the highest (1074 ± 111 and 754 ± 56 W respectively) or the mean (1007 ± 125 and 701 ± 45 W respectively) of the five values for corrected peak power. Optimized and mean corrected peak power were highly correlated both in males (r = 0.97, P < 0.001) and females (r = 0.96, P < 0.001). The difference between optimized and mean corrected peak power was 37 ± 30 W in males and 33 ± 14 W in females, of which approximately 15 W was due to the correction for frictional losses. We conclude that corrected peak power is independent of resistive load in males and females.  相似文献   

20.
Back pain (BP), a prominent problem for competitive athletes, is a primary reason for limitations in athletic performance and daily life restrictions. As studies on the relationship between psychological variables and BP in athletes are scarce, the aim of this study was to investigate stress and depression in competitive athletes with BP. In a cross-sectional design, data of 154 competitive athletes (51% female; Mage?=?18.81 years, SDage?=?5.05 years) were collected, assessing Performance stress, Socio-emotional stress, Risk for depression and Psychological well-being and the two BP parameters BP Intensity and Disability. Two multiple linear regressions were conducted to predict (1) BP Intensity and (2) Disability from Performance stress, Socio-emotional stress, Risk for depression and Psychological well-being. Multiple linear regressions demonstrated that Performance stress (β?=?.21, p?=?.01) was the only significant predictor of BP Intensity (F1,142?=?6.68, p?=?.01, R2?=?.05), whilst Risk for depression (β?=?.24, p?=?.01) was the only significant predictor of Disability (F1,142?=?8.46, p?=?.01, R2?=?.06). Neither gender nor age explained a significant amount of variance in the models. Study results showed that, as in the general population, the variables stress and depression are related to BP in competitive athletes. In particular, BP intensity was found to be associated with stress and BP-related disability was associated with depression, whereas age and gender showed no association with the BP parameters. A longitudinal investigation is warranted to determine the direction of the observed relationships.  相似文献   

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