共查询到20条相似文献，搜索用时 717 毫秒
1.
《新课标》的推行,给学校体育教学注入了新鲜血液,体育教师为此尽己所能,想方设法,大胆创造,使体育教学从内容到形式,教学方法及教学手段都有了很大改观。我们的体育教学亦更加丰富多彩、更加贴近实际生活,更加彰显地域特色。然而,我们在制作（或改制）了简易器材,开发了体育器材的多功能使用,引进了新兴体育项目和民间体育项目;缓解了学校体育器材设备的欠缺、不足,突破了课堂教学内容的单调、乏味、重复、陈旧;唤起了同学们的童心,使学生的运动激情一次次升华的同时,也在电视、报纸、网络等各种媒体中看到了越来越多的“学校体育课安全”案件。 相似文献
2.
3.
4.
5.
采用文献法,对抗战时期陕甘宁边区体育运动开展情况进行研究,结果发现抗战时期陕甘宁边区的体育事业在中国近代体育史上独树一帜,是新中国体育的基础,包括了学校体育、军事体育、群众体育和竞技体育四个方面的内容,其特点主要表现在军事化、大众化、经常化.边区的体育活动,取得了较大的成绩,它为社会主义体育积累了经验,培养了干部,开拓了道路,为新中国社会主义体育运动的建设和成长发挥了积极作用. 相似文献
6.
7.
随着社会经济和现代科学技术的发展,人们的生活方式也发生了相应的变化,不良的生活方式引起了生活习惯病的出现。本文就生活习惯病的概念、发展、种类、机制、预防以及如何建立良好的生活习惯等方面阐述了自己的认识。 相似文献
8.
应中国围棋协会、上海市应昌期围棋教育基金会的邀请,7月22日开始,美国名校大学生围棋代表团开始了为期九天的中国之旅。这一举措是中国海外围棋普及工作的一大进展,也开创了中美围棋交流史上的先例。来自哈佛大学、麻省理工大学、布兰迪斯大学、布朗大学、康奈尔大学、卫斯理女子学院等院校的十一位大学生访问了上海、杭州、北京三地,饱览了优美的自然和人文风光,也与中国各地的大学生棋手进行了愉快的交流和比赛。这次围棋发源地、围棋大国之旅成为了他们围棋生涯中难得的体验,里程碑一般的时刻,当他们带着太平洋彼岸的火种回到故乡,必将为美国的围棋事业创造更多的支点。 相似文献
9.
10.
小网球、大舞台女秘书长的快乐家园因为网球,国家机关各部委、直属单位、金融机构的女秘书长在中央国家机关网协培训班里相知、相识、相互了解,结下友谊;因为网球,更多的女性爱好者成为网友、知己、好朋友、好姐妹、好搭档,情深意重。网球的魅力不仅如此,它就像是一块吸铁石,将兴趣相投的人吸引到一起。中央国家机关网球活动的开展,改变了女秘书长的业余生活,丰富了我们的兴趣爱好,强壮了我们的身体,提高了我们的竞技水平,网球培训的普及和宣传,也彻底改变了大家对网球文化的理解和认识。 相似文献
11.
The scholarship surrounding women's cycling in Australia during the 1890s is slim. However, a focus on female competitive cycling, just one of many diverse cycling activities that women pursued in this era, reveals a rich seam of information. Accordingly, this paper surveys endurance riding, adventure touring and racing, introducing new historical and biographical detail and highlighting the significance of competitive cycling for women in the late nineteenth century. The discussion shows that women's competitive cycling constituted a significant component of Australian cycling history, and helped to re-define women's identity in an era when feminine roles were in flux and the traditional gender order was being contested. 相似文献
12.
自行车骑行是一项有利于健康的运动项目,在日常生活中鼓励人们更多地采用自行车代步出行和骑车锻炼对于促进公共健康、降低慢性疾病发病率具有重要意义。近年来许多国家和地区在大力推行自行车骑行和自行车复兴的政策、项目和规划。但自行车骑行同时也存在一些不利于健康的负面因素,通过在道路骑行中采取一些保护措施可以在一定程度上抵消道路骑行对健康的负面影响,达到骑行健身的效果。综述了近年来有关自行车骑行对健康的促进作用、与骑行有关的负面影响,以及国内外自行车骑行的现状,为与自行车有关的健康研究和政策制定提供理论依据。 相似文献
13.
AbstractBicycles are now gradually losing their attraction for utilitarian use, but in recent years, cycling for tourism and recreation has gained in popularity. However, the experiences and well-being involved in cycling tourism from a theoretical perspective have received little attention. This article intends to explore the relationships between cycling tourism and well-being by studying cyclists on Hainan Island in China. Interviews and participation observations were used to collect data. The types of cycling tourists were firstly identified and classified, followed by analysis of how the tourists obtained well-being through physical and social activities and their contexts. The study finds that human–bicycle relationships and China’s collectivistic culture play important roles in how cycling tourists obtain well-being. This study provides a mobility perspective on cycling tourism and well-being. 相似文献
14.
15.
《Sport Management Review》2016,19(4):417-430
Sport participation is an issue of relevance to sport managers, yet it is an often-neglected area of sport management research. Cycling is a particularly complex form of participation to examine given its many formats, including sport, recreational and commuter cycling, and the multifaceted nature of the cycling landscape involving a broad range of stakeholders. In Australia, women are underrepresented in cycling participation and membership (ABS, 2012, CA, 2014), yet women show an interest in cycling training courses. The present paper explores motivations, supports and constraints reported by a group of entry-level female cyclists who participated in a training programme accredited by AustCycle, an initiative led by Cycling Australia. We draw on a health and sport development driven framework, informed by social ecological theory (Rowe et al., 2013), and suited to examining the issue of women's cycling participation in Australia. Results show that a range of individual characteristics, and factors within the social and physical environment, were perceived by study participants as barriers to participation. Of these, skill level, confidence, traffic/road conditions, and social support networks held particular relevance. Participants also discussed specific cycling barriers and supports of relevance to certain forms of cycling. Preliminary insights into perceptions held by a group of entry-level female cyclists highlight overlaps between cycling formats and indicate that conceptual advancements in the development of sport, and development through sport could be collectively considered in the context of women's cycling participation. Further research opportunities were also identified. 相似文献
16.
Jose Ignacio Priego Quesada Zachary Y. Kerr William Michael Bertucci Felipe P. Carpes 《European Journal of Sport Science》2019,19(6):842-849
Although bike fitting is recommended to help reduce injury risk, little empirical evidence exists to indicate an association between bike fitting and injury incidence. The aim of the study was to determine the effect of bike fitting on self-reported injury, comfort, and pain while cycling from a worldwide survey of cyclists. A total of 849 cyclists completed an online questionnaire between February and October 2016. Questionnaire collected data on respondent demographics, cycling profile, bike fitting, comfort and pain while cycling, and injury history. The main predictor variable was bike fitting (yes, by the respondent, i.e. user bike fitting; yes, by a professional service; or no). Covariates included demographic and cycling profile characteristics. Logistic regression models estimated the odds of injury within the last 12 months, reporting a comfortable body posture while cycling, and not reporting pain while cycling. Odds ratios (OR) with 95% confidence intervals (CI) were reported. User bike fitting was associated with increased odds of reporting a comfortable posture (OR?=?2.28, 95%CI: 1.06, 4.68). User (OR?=?2.35; 95%CI: 1.48, 3.84) and professional bike fitting (OR?=?2.35; 95%CI: 1.42, 3.98) were both associated with increased odds of not reporting pain while cycling. No associations were found between bike fitting and injury within the last 12 months. In conclusion, we found an association between bike fitting and reported comfort and pain while cycling. We recommend integrating bike fitting into cycling maintenance. However, further studies with longer follow-up are necessary to determine the presence of an association between bike fitting and injury. 相似文献
17.
We investigated the association between changes in vastii electromyography (EMG) and knee extensor fatigue during high-intensity cycling, and the subsequent effect on lower-limb power and intermuscular coordination during all-out cycling. On two separate days, participants completed 30-s all-out cycling or 10-min of high-intensity cycling followed by 30-s all-out cycling. EMG for gluteus maximus (GMAX), rectus femoris (RF), vastii (VAS), hamstrings (HAM) and gastrocnemius (GAS); co-activation for GMAX/RF, VAS/HAM and VAS/GAS; isometric maximal voluntary force (IMVF) and resting twitch (RT) of the knee extensors were measured. VAS EMG increases during high-intensity cycling (6% to 14%, P < 0.05) were negatively correlated (r = ?0.791, P < 0.05) with knee extensor IMVF decreases (?2% to?36%, P < 0.05) following the exercise. Knee extensor IMVF decreases were positively correlated (r = 0.757, P < 0.05) with all-out cycling power reductions (0% to ?27%, P < 0.05). VAS/GAS co-activation did not change (P > 0.05) during all-out cycling while VAS and GAS EMG decreased. Larger increase in VAS EMG during high-intensity cycling was associated with greater knee extensor fatigue and larger power reduction during all-out cycling. High VAS/GAS co-activation potentially limited power reduction induced by knee extensor fatigue during all-out cycling. 相似文献
18.
本文对循环练习法的科学基础以及当前体育教学中运用循环练习法所存在的问题进行了粗略的分析，并对如何正确运用循环练习法提出了自己的看法。 相似文献
19.
A review of existing mathematical models for velodrome cycling suggests that cyclists and cycling coaches could benefit from an improved simulation tool. A continuous mathematical model for cycling has been developed that includes calculated slip and steering angles and, therefore, allows for resulting variation in rolling resistance. The model focuses on aspects that are particular, but not unique, to velodrome cycling but could be used for any cycling event. Validation of the model is provided by power meter, wheel speed and timing data obtained from two different studies and eight different athletes. The model is shown to predict the lap by lap performance of six elite female athletes to an average accuracy of 0.36% and the finishing times of two elite athletes competing in a 3-km individual pursuit track cycling event to an average accuracy of 0.20%. Possible reasons for these errors are presented. The impact of speed on steering input is discussed as an example application of the model. 相似文献
20.
Aerodynamics has such a profound impact on cycling performance at the elite level that it has infiltrated almost every aspect of the sport from riding position and styles, equipment design and selection, race tactics and training regimes, governing rules and regulations to even the design of new velodromes. This paper presents a review of the aspects of aerodynamics that are critical to understanding flows around cyclists under racing conditions, and the methods used to evaluate and improve aerodynamic performance at the elite level. The fundamental flow physics of bluff body aerodynamics and the mechanisms by which the aerodynamic forces are imparted on cyclists are described. Both experimental and numerical techniques used to investigate cycling aerodynamic performance and the constraints on implementing aerodynamic saving measures at the elite level are also discussed. The review reveals that the nature of cycling flow fields are complex and multi-faceted as a result of the highly three-dimensional and variable geometry of the human form, the unsteady racing environment flow field, and the non-linear interactions that are inherent to all cycling flows. Current findings in this field have and will continue to evolve the sport of elite cycling while also posing a multitude of potentially fruitful areas of research for further gains in cycling performance. 相似文献