Effects of Voluntary Apnea on Haemodynamic Responses during Groundwork Techniques of Judo

Context: Several studies were conducted on physiology of apnea in scuba diving. No survey has been reported in fighting sports. Objective: To evaluate cardiovascular variations misled by voluntary apnea during groundwork techniques of judo training. Methods: The temporal evolution of heart rate and modifications of the blood pressure have been investigated during cross sectional and experimental study. A total of 28 Congolese judoists took part in the study. The voluntary apnea was achieved by a judoist to try to carry out two kinds of groundwork (hon-gesagatame and kamishiho-gatame). According to the case, Student t test and analysis of variance were used for comparing data. Multivariate analysis was used to evaluate the effect of “type of groundwork technique × category of weight”. Results: Between 0 and 3 seconds, tachycardia has been observed during the static groundwork techniques and then bradycardia occurred to 3 - 9 seconds for the dynamic groundwork techniques : +6.8% of the rest frequency versus -9.4% for hon-gesa;+4.9% versus -13.7% for kami-shiho. Thereafter, it followed a fluctuation of heart rate of 9 - 15 seconds. Beyond, a stagnation was noted for hongesa, whereas a minimal increase (<5%) for kami-shiho. In relation to the systolic arterial pressure, a meaningful rise was recovered: +46.5% (hon-gesa) versus +50.1% (kami-shiho) in static exercise;+43.4% (hon-gesa) versus +43.3% (kami-shiho) in dynamic exercise. The report was similar for the diastolic arterial pressure: +31.5% (hon-gesa) versus 30.0% (kami-shiho) in static exercise;+20.3% (hon-gesa) versus +23.8% (kami-shiho) in dynamic exercise. Conclusion: The apnea consecutive to the hindrance of an exit groundwork technique to judo drags bradycardia increased while exercise realized static posture, and a rise of the arterial pressure.

Relationship between Category of Weight and Threshold of Maximum Oxidation of Lipids in Congolese Judoists

Background: One of the goals for training in judo is to mimic real situations. In subsaharian countries;there is a lack of knowledge considering relation between category of weight and threshold maximum oxidation of lipids. Objectives: The main objectives of this study were to analyze the effect of category of weight on lipoxmax and to identify the zones of target intensities corresponding to lipoxmax. Materials and Methods:Twenty four male well-training judoists, divided in two groups according to weight, were evaluated during calorimetry effort’ test. For this situation, cardiorespiratory parameters (HR, VO2, VO2max), blood parameter (lactatemia), anthropometric variables and zones of target corresponding to lipox were evaluated. For statistical analysis, Shapiro-Wilks test was used to compare all the data and differences were confirmed by one-way variance. Results: No significant differences were observed among two groups for target intensities to lipox. The judoists of group 1 were aged to 24.1 ± 5.9 years with 1.78 ± 0.07 m versus 20.4 ± 1.6 years with 1.86 ± 0.04 m. Primary results indicated higher intensities for lipoxmax. Also, values of power (% LDC) and VO2 and were significantly higher in the judoists for group 2, with respectively: 45.3 ± 10.2 and 46.4 ± 8.6 ml/min versus 38.2 ± 7.2 and 31.3 ± 7.6 ml/min. Conclusion: High weight in judoists induces high intensities of lipoxmax and change oxidation of lipids markers following training.

Almansba, Franchini and Sterkowicz Judo Specific Test Proposal (2007) Commentary

The present commentary is aimed to contribute to the improvement of the judo specific test proposal elaborated and validated by Almansba, Franchini and Sterkowicz (2007) 1) with the aim of evaluating specifically the physical fitness of competing judo practitioners, 2) wishing the test to be representative both qualitatively and quantitatively of the effort sustained by the practitioners. All alone, the test proposal, which utilizes rapid repetitions of one judo technique off-balancing and body positioning by the same practitioner (Uchi-komi) may be usable instead of three non-judo specific tests: the vertical jump test of Sargent (1921), the multistage fitness test of Léger et al. (1984) and the Australian shuttle run test described by Cazorla et al. (2004). However, the judo specific test proposal 1) specificity is still to be increased and must ideally turn into test individualization (using the proposal as a template), as in judo, trained individuals have favorite techniques they use in preference to others;2) represents competing judo practitioners efforts quantitatively but not qualitatively (throws are represented, but neither hold downs, arm-locks, strangle holds nor chokeholds);3) brings subjects to physiological exhaustion but psychological exhaustion emotional component is left out of account. Uchi-komi utilized by the test proposal could better be replaced by continual completions of variable judo techniques by the same practitioner (Kakari-geiko) which allow the practitioner who is attacking by means of judo techniques (Tori) to utilize linked up techniques. Nevertheless, to date, the test proposed for assessing the suitability of judo practitioners to meet competition demands is the most judo specific and the most economic.

Effects of Judo Strength-Velocity Training during Precompetition on Cardiorespiratory Responses in Congolese Judoists Aged 15 - 17 Years Old

Objective: To evaluate the effects of “strength-velocity” training on the evolution of some cardiorespiratory parameters in postpubertal judoists of the Congolese national elite. Methods: The survey, exploratory, experimental and longitudinal, was about 14 boys, belonging to seven categories of weight of the International Federation of Judo. These judoists, at the level belonged to stages 3, 4 and 5 of the classification to Tanner, of pubertal maturation. Their median age was 16 years (range: 15 - 17 years). All topics have been submitted to “strength-velocity” training, focused around exercises bound to the development of the power and automatisms, from plyometric and isometric training. Three assessments have been realized in the beginning, to mid-training (3 months) and at the end of the program (6 months). The measured values were cardiorespiratory parameters. Results: The heart rate to the doorstep was decreased significantly (p = 0.048), so VO2 max (p = 0.046), FVC (p = 0.0244) and ratio VEMS/FVC (p = 0.046) as function of pubertal stage. In contrast, increase was not significant for VEMS (p = 0.205) and absolute VO2 to doorstep (p = 0.097). No significant effect of pubertal state on respiratory frequency was found. On the other hand, strength-velocity training improved cardiorespiratory data. To the recovery of the “strength-velocity test”, the decrease of the VO2 took place more quickly that the one of the VE, the VCO2 and the HR, variations linked to the category of topic weight. Conclusion: Among high level Congolese postpubertal judoists, the cardiorespiratory modifications induce faculty to the realization of a good performance and pursue objectives of health. However, it is necessary to be heedful as for situations to put in place in sittings at the time of such of “strength-velocity” training.

Chinese Wushu and Japanese Judo

Wushu routine techniques were greatly developed during the Song Dynasty (960-1279), mainly to meet the demand for civilian entertainment as well as in military training. More attention began to be paid to bodywork, physical strength, and rhythm and movement design. Each routine consisted of a starting position and a finishing position.

The Contrastive Survey of Wushu，Judo and Taekwondo from Culture Perspective

运用比较分析法与文献资料法，论述了柔道、跆拳道在适应现代体育的发展过程中进行文化改革和文化传播获得成功的因素，指出中国武术散打在恢复发展过程中严重脱离了中国武术文化的衣钵，提出具有鲜明的中国传统文化符号特征，是武术散打国际化与传播的关键；保持中国武术的文化特点、民族特性是中国武术散打发展的基本要求。

On the change of some biochemistry indexes and nutrition intervention in weight loss trials of female Judo athletes

This thesis expounds the body function state change of the female judo athletes and attempts to probe the method of improving the capacity of sports of female judo athletes,through the research of biochemistry index change and nutritional interveution effect during their weight loss period.The research objects are 24 judo athletes from Inner Mongolia and they are randomly divided into groups of common loss of weight(n=8),loss of weight with common nutrition(n=8) and loss of weight with nutrition intervening(n=8) according to their weight.The experiment period is 2 weeks.Conclusion:(1)The judo athletes should be enforced with the food rich in Fe and protein to avoid anemia.(2)The nutritional complement like glutamine et cetera can improve the athletes body function and capacity of sports,and relieve fatigue efficiently.

优秀女子柔道运动员产后恢复训练的个案研究

目的:探索女性运动员产后恢复训练的系统性体能康复训练方案和监控方法,为女性运动员产后恢复训练提供参考。方法:以优秀女子柔道运动员于颂产后恢复训练为例,从产后问题改善、伤病康复防治、体能恢复提高等三个方面制定为期18周的系统性体能康复训练和监控记录方案,并对其后续训练比赛进行跟踪服务保障。结果:通过18周系统性体能康复训练,使运动员的产后问题和体能得到改善,伤病问题控制良好,上肢力量呈递增式提高,下肢力量更加均衡,最终顺利恢复实战训练并取得优异比赛成绩。结论:产后运动员通过系统性体能康复训练和监控,仍能取得优异成绩,该产后恢复训练方案对延长女性运动员运动寿命具有积极意义。

2022年世界柔道锦标赛女子+78KG级前八名运动员技术特征分析

柔道作为我国传统优势项目,曾在国际赛场上创造出不俗成绩,无论是在奥运会还是世界锦标赛的赛场上,女子柔道大级别始终都是我国争金夺银的优势小项。世界柔道锦标赛是除奥运会外最高级别的国际柔道赛事,赛事结果对奥运会赛前备战具有重要参考价值。本文运用文献资料法、录像观察法、数理统计法和访谈法等方法,以2022年塔什干世界柔道锦标赛+78KG级前八名运动员竞技能力特征为研究对象,对比赛中运动员各类技术运用情况进行统计,在分析了解技术特点的基础上寻找其薄弱环节,以便为我国女子柔道+78KG级运动员备战2024年巴黎奥运会提供参考。

世界优秀女子柔道大级别运动员得分技术运用的灰色关联度分析--以2023年多哈世界柔道锦标赛女子+78公斤级为例

柔道作为技能主导类对抗性项群,技术是项目的核心要素。以2023年多哈世界柔道锦标赛女子+78公斤级运动员的得分技术特征为研究对象,首次将灰色关联分析法引入柔道项目的技术分析中,将决定比赛胜负的技术运用成功率作为参照对象,探索不同技术指标运用成功率对比赛胜负的影响程度。研究过程中主要运用录像观察法、数理统计法展开研究。女子+78公斤级运动员在比赛中以运用投技技术得分为主,其中足技和手技的得分率最高。背负投、大外刈和大内刈技术运用得分率位列全部技术类别得分前三位。通过灰色关联分析可知该级别运动员足技、腰技技术运用成功率与总成功率的关联度最密切;在足技技术中,小内刈、大外刈和膝车的排序较高;在手技技术中,背负投的排序第一;在腰技技术中,扫腰的关联度排序略高于大腰;在舍身技中,外卷入、谷落和横车关联度排序较高;固技技术中袈裟固和横四方固的关联度一致。建议我国教练团队针对各类别关联度较高的技术给予高度重视,针对相关技术制定不同的训练方案,以提升我国柔道项目的综合实力。

不同层级中小级别女子柔道运动员基础体能比较研究

目的:研究3项体能素质对女子柔道专项能力的作用。方法:运用文献资料法、数理统计法,对国家队、省队、地市队的女子柔道中小级别运动员的3项基础体能指标进行比较研究。结果:3 000 m跑的比较中所有级别均显示国家队与地市队均存在显著性差异;卧推的比较中国家队与地市队在-57公斤级、-63公斤级中存在显著性差异,国家队与省队仅在-57公斤级存在显著性差异;深蹲的比较中,除-48公斤级外,其他3个级别均显示国家队与地市队存在显著性差异,省队与地市队仅在-57公斤级显示存在显著性差异。结论:国家队与地市队在3 000 m跑指标的4个级别比较中显示一致性的差异,深蹲在3个级别的比较中显示一致性的差异,表明有氧耐力和下肢最大力量是地市队层级与国家队层级差异的主要两项素质。

An Unusual Judo Team

Unusual Li Lingling The deciding match of judo in the 48-kg category at the Eighth National Games was a showdown between the 27-year-old judo legend Li Aiyue from Zhejiang, the world champion, and a 19-year-old from Guangxi Zhuang Autonomous Region named Li Lingling. The fierce competition between the two best judo athletes in China attracted great attention of judo experts and fans. The result? Li Lingling won the championship. Li Lingling grew up in Guilin, a region famous for its beautiful landscape. Although she only began training in

女子柔道运动员尿液代谢组学代谢物特点研究

目的:通过对女子柔道运动员运动训练后的尿液代谢组学代谢物特征的研究,分析运动员运动训练后的代谢物变化与运动训练状态监测心理量表评定值的关系,探究运动训练负荷对运动员的影响。方法:以山西女子柔道队18名参加日常训练的运动员为研究对象,采用1H核磁共振波谱(1H nuclear magnetic resonance,1H NMR)法指认运动员尿液代谢组学代谢物,并对积分数据进行多元统计分析,了解其尿液代谢物分布特点;向运动员发放运动训练状态监测量表;采用SPSS 21.0软件对数据进行统计分析,采用单因素方差分析法分析运动员尿液代谢组学代谢物峰面积值的差异性,分析运动训练状态监测心理量表评定值间的差异性。结果:1)在1H NMR的主要化合物归属中共指认出24种化合物。采用PCA散点图观察样本的聚类特征,将除2号样本外的其余17个样本分为3个组别(A、B、C组);2)A、B、C组在所指认的代谢物缬氨酸、谷氨酰胺、琥珀酸、胆碱上有显著差异(P<0.05),A组的峰面积均值较大;3)A、B、C组在心理疲劳上有显著差异(P<0.05),A组运动训练状态监测心理量表评定均值较B、C组均值更大,即A组在心理疲劳上较B、C组更明显。结论:1)基于1H NMR法研究运动员尿液代谢组学代谢物特点,可以客观反映女子柔道运动员在运动训练后机体的代谢状况;2)运动训练状态监测评定为心理疲劳的A组运动员,其代谢物缬氨酸、谷氨酰胺、琥珀酸、胆碱相对含量升高,可能是由运动员对运动训练的应激-适应所导致的。从机体代谢物的角度对运动员进行运动训练监测,可反映运动员机体机能代谢特点与运动员较早出现心理疲劳之间的联系。

第十四届全运会优秀女子柔道运动员技术运用特征分析

全运会是国内水平最高、规模最大的竞技盛会。本研究采用文献资料法、录像观察法和数理统计法统计分析第十四届全运会各级别前八名女子柔道运动员技术运用情况,旨在总结我国优秀女子柔道运动员技术运用特征,期望为运动员和教练员备战2024年巴黎奥运会提供思路和帮助。结果显示:我国优秀女子柔道运动员技术运用特征主要为抓握传统把位压制对手,进攻节奏快,擅长以我国典型的散手风格进攻取胜,投技得分技术多以舍身技为主,寝技中抱压技成功率很高,投寝技术连接紧密。同时研究发现我国女子柔道运动员投寝技术发展不平衡、投技单一技术成功率低、寝技中绞技和关节技技术运用率低等问题。

青少年摔跤柔道运动员肩关节肌力及活动度特点分析

目的:该研究旨在探求不同年龄、专项训练时长和体重下的肩部肌力及活动度特点。结果:年龄、专项训练时长和体重均与肌力呈非常显著正相关(P<0.01),与ROM呈负相关(P<0.01)。早期,运动员肩部内旋和外旋肌力之间存在显著(P<0.05)左右不均衡现象。专项训练时长对肩部内外旋肌力的影响均不显著(P>0.05)。结论:运动员双肩关节内旋肌力均显著大于外旋肌力。青少年运动员早期存在左右侧肌力失衡现象,需加强肩部肌力的专项力量训练。青少年运动员训练期间的肩部外旋活动度降幅较大。

青少年柔道训练应遵循的原则和方法

青少年柔道运动员正处在身体发育时期,其身体机能和成人柔道运动员相比有所不同,基于此,本文首先对青少年柔道训练应遵循的原则进行了介绍,之后分别从基础技术训练、专项技术训练以及柔道训练中器械的运用几个方面提出了青少年柔道训练可采取的方法。

2019年柔道世锦赛女子-57kg级前三名运动员技术使用分析

本文采用文献资料、录像观察、数理统计等研究方法,对2019年世界柔道锦标赛女子-57 kg级前三名运动员技术特征进行统计分析,以期为运动员训练提供技术参考。研究结果:技术使用以投技为主,固技的成功率远高于投技。投技使用率较高的技术动作为背负投、大内刈、小外刈、内股和小内刈。得分集中在比赛第一分钟和最后一分钟。技术得分以技有为主。冠军擅长巴投和扫腰,亚军擅长内股和腕缄,季军1擅长内股透,季军2擅长背负投。

低海拔地区男子柔道运动员在2366m高原训练的生理特点初步研究

低海拔地区男子柔道运动员在２３６６ｍ高原训练的生理特点初步研究雷欣，李桦，潘均昂，任宝成，马德明，罗筱荣ＰｒｅｌｉｍｉｎａｒｙＲｅｓｅａｒｃｈｏｆＰｈｙｓｉｏｌｏｇｙｏｆＭａｌｅＪｕｄｏＡｔｈｌｅｔｅｓＬｉｖｉｎｇｏｎｌｏｗ－ｌａｎｄｄｕｒｉｎｇＴｈ...

青少年摔跤、柔道与散打运动员身体素质特点

以首都体育学院竞技体育学校青少年摔跤、柔道与散打36名运动员为研究对象,探究青少年摔跤、柔道与散打运动员身体素质特点。在运动员集训开始期与集训中期,分别检测运动员身高和体重以及背力、手握力、平衡能力、纵跳、反应时、侧步移动与柔韧等身体素质指标。结果发现,男青少年摔跤和柔道运动员的背力、手握力和纵跳相对女青少年摔跤和柔道运动员的背力、手握力和纵跳较高(P<0.05),但是女运动员的平衡能力比男运动员的平衡能力显著强(P<0.05);男女柔道运动员手握力相对男女摔跤和散打运动员的手握力较高;青少年摔跤、柔道与散打项目间运动员的背力、纵跳、侧步移动、平衡能力与柔韧方面差异不大。由此可见,青少年柔道运动员手握力较青少年摔跤和散打运动员的手握力大可能是其特点。青少年摔跤、柔道与散打运动员在力量和平衡能力方面存在明显的性别差异,但是在反应时、侧步运动和柔韧能力方面无显著的差异。