共查询到20条相似文献，搜索用时 203 毫秒
1.
T J Housh G O Johnson D J Housh K B Kenney R A Hughes W G Thorland C J Cisar 《Research quarterly for exercise and sport》1990,61(4):375-382
The purpose of this study was to determine the effects of age and body weight on anthropometric estimations of minimal wrestling weight (MWW) in high school wrestlers. Five hundred and twenty-two high school wrestlers (M age +/- SD = 16.45 +/- 1.03 years) volunteered as subjects for this study. The total sample (N = 522) was dichotomized by age (less than 16 years, n = 171; greater than or equal to 16 years, n = 351) and body weight (less than or equal to 62.60 kg, n = 252; greater than 62.60 kg, n = 270). Cross-validation analyses included examination of the constant error (CE), standard error of estimate (SEE), r, and total error (TE). The results indicated that the quadratic skinfold equation of Lohman (EQ1; Table 2) most accurately estimated MWW in each group. Furthermore, it was recommended that MWW be calculated from EQ1 using the conversion constants of Lohman ([(5.03/BD)-4.59] x 100) to estimate relative fat from body density. 相似文献
2.
《European Journal of Sport Science》2013,13(2):145-151
Abstract The aim of this study was to examine the anthropometric characteristics and body composition of wrestlers from the Italian national team. The study was carried out on a sample of 23 wrestlers (9 females and 14 males) aged 18–33 years. Various anthropometric measurements were performed (weight, height, sitting height, some girths and skinfold thicknesses) and anthropometric indices calculated (body mass index, cormic index, upper arm muscle area, upper arm fat area, and arm fat index). Body composition was assessed and minimum wrestling weight was determined based on a minimum body fat percentage of 5% for males and 12% for females. We undertook comparisons by sex, wrestling style (for males), and weight category. The comparison between men's and women's wrestling corroborated known differences between the sexes; the comparison between wrestling styles stressed the relevance of the cormic index. The most interesting finding of this study was that no female wrestler competed in a lower weight class than her minimum wrestling weight, even if all of them were heavier than values allowed for their weight class. Five of 14 male wrestlers competed in a weight class lower than their minimum wrestling weight, and all of them, except two, were heavier than the uppermost limit of their weight class. 相似文献
3.
Terry J. Housh Glen O. Johnson Roger A. Hughes Craig J. Cisar William G. Thorland 《Research quarterly for exercise and sport》2013,84(3):240-243
Abstract The purpose of this investigation was to determine the yearly changes in body composition as well as absolute and relative isokinetic forearm flexion and extension strength of high school wrestlers. Evaluations of body composition (underwater weighing) were performed on 27 high school wrestlers prior to three consecutive seasons. In addition, isokinetic forearm flexion and extension strength values at 180°/s (Cybex II) were available for 20 of the subjects. The mean ages at the times of laboratory testing were 15.5 (± .5), 16.5 (± .5), and 17.5 (± .5) years. Repeated measures ANOVA or ANCOVA with Tukey post-hoc comparisons were used to locate significant (p<.05) differences across age for height, body weight, relative fat, body density, fat weight, fat-free weight, absolute muscular strength, and muscular strength covaried for body weight and fat-free weight. There were yearly increases in all variables except fat weight, forearm flexion covaried for fat-free weight and forearm extension covaried for fat-free weight. The results of this study indicated that the improved wrestling performance and the increase in weight classification which normally occurs during high school are, in part, a function of yearly changes in body composition and muscular strength. 相似文献
4.
This study examined a method of predicting body density based on hydrostatic weighing without head submersion (HWwithoutHS). Donnelly and Sintek (1984) developed a method to predict body density based on hydrostatic weight without head submersion. This method predicts the difference (D) between HWwithoutHS and hydrostatic weight with head submersion (HWwithHS) from anthropometric variables (head length and head width), and then calculates body density using D as a correction factor. We developed several prediction equations to estimate D based on head anthropometry and differences between the sexes, and compared their prediction accuracy with Donnelly and Sintek's equation. Thirty-two males and 32 females aged 17-26 years participated in the study. Multiple linear regression analysis was performed to obtain the prediction equations, and the systematic errors of their predictions were assessed by Bland-Altman plots. The best prediction equations obtained were: Males: D(g) = -164.12X1 - 125.81X2 - 111.03X3 + 100.66X4 + 6488.63, where X1 = head length (cm), X2 = head circumference (cm), X3 = head breadth (cm), X4 = head thickness (cm) (R = 0.858, R2 = 0.737, adjusted R2 = 0.687, standard error of the estimate = 224.1); Females: D(g) = -156.03X1 - 14.03X2 - 38.45X3 - 8.87X4 + 7852.45, where X1 = head circumference (cm), X2 = body mass (g), X3 = head length (cm), X4 = height (cm) (R = 0.913, R2 = 0.833, adjusted R2 = 0.808, standard error of the estimate = 137.7). The effective predictors in these prediction equations differed from those of Donnelly and Sintek's equation, and head circumference and head length were included in both equations. The prediction accuracy was improved by statistically selecting effective predictors. Since we did not assess cross-validity, the equations cannot be used to generalize to other populations, and further investigation is required. 相似文献
5.
陈琳 《体育科技文献通报》2020,(2):36-38
在东京奥运会备战周期里,传统摔跤强国俄罗斯、美国、日本等受到来自多国的挑战,我国的备战形势更加严峻。本文在分析2019年摔跤世锦赛情况的基础上,重点研究摔跤项目的国际发展趋势,归纳出以下几个特点:(1)专项体能是关键,女子比赛趋于男性化;(2)进攻型打法受推崇,保守求稳难取胜;(3)综合科技保障效果显著,赛期保障办法多;(4)增减体重更加科学,更改级别越来越普遍;(5)体重级别不断调整,更有利于欧美高大选手。因此建议我国找准夺金点,精准定制专项体能训练方案,在综合保障、心理建设等方面做细做实,争取东京奥运会在女子中、小级别夺金,在男女大级别站上领奖台。 相似文献
6.
《Measurement in physical education and exercise science》2013,17(2):127-143
The purpose of this study was to develop and cross-validate anthropometric body composition equations for the elderly (i.e., ≥ 65 years old). This was undertaken due to a lack of accurate and reliable body composition equations for the elderly. One-hundred fifty male (n = 75) and female (n = 75; mean age = 70 years, SD = 3.71 years) elderly were randomly assigned to either an equation development sample (n = 50) or an equation validation sample (n = 25), respectively. The male and female development and validation sample groups, respectively, were joined to make combined development (n = 100) and validation (n = 50) samples. Hydrodensitometry was used to determine participant body density, percent fat, fat-free mass, and fat weight for use as the criterion variables by which prediction equations could be developed and validated. The equations presented are for the prediction of body density [body density = 1.0554 + .0142 (gender) + .0267 (height) - .00022 (midaxillary) - .00086 (hip circumference)], percent fat [% fat = .1688 (body mass index) + .542 (hip circumference) -.1639 (weight) -5.7033 (gender) -7.9498], fat-free mass [fat-free mass = 30.3769 + 8.0108 (height) + .824 (weight) - .1355 (suprailiac) - .5419 (hip circumference)], and fat weight [fat weight = .2449 (weight) + .5218 (hip circumference) - .076 (thigh circumference) - 4.0299 (gender) - 37.8619]. The equations provided estimates that were not statistically different from the hydrostatically determined criterion variables but were statisfically different from estimates derived from other published "elderly" body composition equations. 相似文献
7.
丙酮酸钙对摔跤运动员体成分和静息代谢率的影响 总被引：1，自引：0，他引：1
探讨丙酮酸钙对摔跤运动员体成分和静息代谢率的影响。选取摔跤男运动员22人，随机分成2组即丙酮酸钙组和安慰荆组，分别给予6g／d的丙酮酸钙和安慰荆，共服用8周。观察摔跤运动员体重、体脂肪含量、体重指数、身体脂肪比率以夏腹部脂肪比率、去脂体重、肌肉量、骨骼肌含量、水分、蛋白质、无机盐含量以及静息代谢率的变化。结果表明实验束丙酮酸钙纽体重、体脂肪含量、体重指数、身体脂肪比率以厦腹部脂肪比率5项指标均较实验前呈显著下降（P〈0．05）；安慰剂组体重、去脂体重、肌肉量、体脂肪、体重指数、身体脂肪比率、腹部脂肪比率、水分、蛋白质、无机盐含量以及静息代谢率各项指标与实验前比较有所下降，但无显著意义；组间进行比较，丙酮酸钙组实验前后体重差值、体脂肪含量差值、身体脂肪比率差值以及腹部脂肪比率差值4项指标与安慰刺组相比差异存在显著（P〈0．05）；去脂体重、肌肉量、骨骼肌含量、水分、蛋白质、无机盐含量以及静息代谢率在实验前后和两组间均无明显变化。可见，丙酮酸钙能有效降低摔跤运动员体重和体脂含量而不影响去脂体重，迭到减重而不减瘦体重的目的；丙酮酸钙对于静息代谢率无明显影响。 相似文献
8.
目的：探讨摔跤运动员血清脂联素的水平及其与体成分的相关性,并分析一次急性抗阻训练对摔跤运动员血清脂联素水平的影响。方法：将研究对象分为运动员组（12人）和对照组（12人）,对安静时血清脂联素的水平及与体成分的关系进行分析。抗阻训练后,休息30min,再测定血清脂联素水平,对比研究摔跤运动员训练前后血清脂联素水平的变化。结果：1．安静时,摔跤运动员血清脂联素水平显著高于对照组（P〈0．01）。2．急性抗阻训练后,血清脂联索水平下降,但没有显著性差异（P〉0．05）。3．血清脂联素水平与俸脂％（P〈0．05）、甘油三酯（P〈0．05）有显著负相关;与肌肉（P〈0．05）有显著正相关。结论：1．长期抗阻训练可显著增加血清脂联素水平,急性抗阻训练对脂联素没有显著性影响。2．脂联素与肌肉瘦体、体脂相关。3．单纯用BMI来研究与脂联素的相关关系有一定的局限性,要考虑不同个体体成分差异。 相似文献
9.
Michael Tripp 《国际体育史杂志》2018,35(2-3):157-172
AbstractDuring the first half of the nineteenth century, Cornish wrestling, which was distinctive to Cornwall, was the county’s most popular sport, with a large number of wrestlers competing for lucrative prizes at numerous tournaments and watched by thousands of spectators. Its popularity also extended to London, where sporting entrepreneurs, mainly publicans, organized and promoted wrestling in the Cornish style, when the best wrestlers were lured to the capital to compete for large prizes, witnessed by substantial crowds, which often included members of the nobility. During the second half of the nineteenth century, Cornish wrestling suffered a serious decline in popularity with fewer wrestlers, tournaments, and spectators. By 1900 the sport had almost died out and only survived due to the efforts of a small group of talented wrestlers who inspired a minor revival in the years leading up to 1914. One factor that contributed to the decline was the practice of ‘faggoting’, which was a form of match-fixing that involved wrestlers agreeing with opponents to share any prize money. Consequently, the sport developed a bad reputation and became very unpopular with spectators. In order to eradicate the practice, wrestling organizers issued regular warnings to wrestlers or excluded them from tournaments. 相似文献
10.
Abstract Eighteen girth, skinfold, cardiovascular, cable tension strength, and response time measurements were obtained in order to assess the effects of weight reduction on a group of college wrestlers. In 10 of the 18 measurements mean differences were found to be significant at the .05 level from the statistical analysis provided by a repeated measures analysis of variance. It was generally concluded that for the ten subjects studied up to 7 percent of body weight may be lost without adversely affecting factors apparently related to wrestling performance —strength, cardiovascular endurance, and response time. 相似文献
11.
我国优秀摔跤运动员运动损伤调查分析 总被引：5，自引：1，他引：5
研究目的:探讨我国优秀摔跤运动员运动损伤特征、损伤易患部位、导致损伤发生的原因,以期为第28届奥运会的备战提供有效的预防和治疗措施。研究对象:我国备战2004年奥运会的国家摔跤集训队三跤(男子古典跤、男子自由跤、女子自由跤)的44名重点运动员(包括奥运会的8名参赛运动员)。研究结果:从运动损伤性质和种类来看,三跤没有明显区别,都以关节挫伤、韧带损伤和肌肉拉伤最为常见,其次为耳廓损伤和劳损;从运动损伤的部位看,女子自由跤与男子自由跤没有明显区别,损伤部位多发生于膝关节、肘关节、指关节、耳部、肩关节和腰背;但男子古典跤腰背部损伤占第一位,其次为膝关节、肘关节;在三跤中,专项训练中发生的损伤最多;发生损伤的原因主要是准备活动不充分、动作不正确、慢性劳损和场地监督不够等;针灸、推拿是首选的治疗手段,其次为理疗、外敷药物、内服药物等。 相似文献
12.
专项力量训练是自由式摔跤训练中重要的组成部分。为进一步提高摔跤运动员的训练水平,文章以我国部分优秀男子自由式摔跤队运动员为研究对象,采用文献资料法、专家访谈法和观察法对现代摔跤运动专项力量训练的特点进行综合归类、分析和研究,并在此基础上提出相应的训练手段和方法。以期为摔跤的科学化训练提供理论参考。 相似文献
13.
遗传因素与摔跤运动员选材 总被引：2，自引：0，他引：2
根据摔跤运动的特点和高水平摔跤运动员所具备的能力特征，对遗传因素与摔跤运动员选材的关系进行了探讨，认为摔跤运动员选材的指标应参照遗传度大的相关遗传因素，并从身体素质、心理因素、身体形态、生理机能等方面综合评价。 相似文献
14.
运用文献资料法和经验总结法,对我国男子摔跤训练工作若干问题进行了研究。研究认为,为了提高我国男子摔跤队的训练水平,达到夺得奥运会金牌目标,必须加强国家队的制度建设,保障训练工作顺利实施;全面客观分析找出差距,找准突破口和对策;深入研究摔跤制胜规律,改革创新训练思想;突出关键专项素质训练,重视恢复有效预防损伤。 相似文献
15.
何强 《沈阳体育学院学报》2012,31(3):66-70
为探讨我国优秀女子摔跤运动员身体机能特征,采用文献资料、调查和实验等方法,对53名优秀女子摔跤运动员身体机能指标进行统计分析。结果表明:1)优秀女子摔跤运动员身体机能主要由无氧能力因子、有氧能力因子、恢复能力因子和激素水平因子构成,表现为机体无氧、有氧能力强,恢复能力好,雄性激素水平相对较高;2)相对平均无氧功率、相对最大摄氧量、血尿素和血清睾酮可作为女子摔跤运动员身体机能典型评价指标;3)"百分位数法"制订的不同体重级别女子摔跤运动员身体机能评价标准,能较好地反映现阶段优秀女子摔跤运动员的身体机能水平,可为优秀女子摔跤运动员的身体机能评定提供参考依据。 相似文献
16.
高水平摔跤运动员赛前训练的目的是将训练水平转化成为比赛能力。摔跤运动员赛前训练模式体现"小周期、短节奏、多课次、高强度"的特点。赛前训练内容以技术训练和战术演练为主,同时协调好技战术训练同专项素质训练,恢复训练的关系。在此基础上还需重视伤病治疗、控制体重、营养恢复和生理生化指标等医务监督工作,为构建摔跤运动员程序化参赛系统奠定基础。 相似文献
17.
《European Journal of Sport Science》2013,13(1):49-56
Abstract The effects of exercise training on heart have been widely explored. However, less understood are the effects of dehydration and rehydration on electrocardiographic (ECG) and echocardiographic (Echo) parameters in wrestlers. The aim of this study was to determine the effect of dehydration and rehydration on some ECG and Echo parameters. Fourteen healthy high school wrestlers (age 18.1±2.6 years, weight 77.2±10.2 kg, BMI 25.2±2.9 kg · m?2; mean±s) were randomly assigned to an experimental (loss of 3–4% of their weight through 10-min bouts in dry sauna) or a control (dry sauna exposure with mineral water proportionate to their body weight loss) group. Blood and urine sampling, 12-lead ECG, and echocardiogram were recorded in euhydration, dehydration, and 18 h after sauna. Moreover, a 6-min high-intensity arm ergometer cranking test (8×15 s intervals at maximum workload and 30 s active recovery) was completed in each of the three stages. Data were analysed with repeated-measures analysis of variance, independent t-tests, and Pearson correlations. Dehydration by 3–4% of body weight in sauna resulted in augmentation of the sum of amplitudes of P waves and QRS complexes (mm), but decreased left ventricular end-systolic volume (LVESV), left ventricular end-diastolic volume (LVEDV), and stroke volume (ml). As expected, rehydration was associated with recovery of the P wave and ECG parameters. In general, QRS amplitude correlated poorly with LVESV, LVEDV, and P wave, but was inversely related to stroke volume (r=–0.387, P=0.011). In conclusion, dehydration in Greco-Roman wrestlers results in physiological alterations (amplitude of the P wave and QRS complex, LVESV, LVEDV, and stroke volume) of the electrical properties of the passive volume conductor. Further research is necessary to assess the potential for adverse events and appropriateness of this short-term weight loss strategy for young wrestlers or other populations. 相似文献
18.
本论文研究目的是解决国内男子摔跤运动员在比赛中心理不稳定因素,日前男子摔跤运动员在比赛中往往无法发挥真正的实力,心理因素的影响很大,通过对国内男子摔跤运动员比赛中心理因素的调查分析造成心理不利因素的原因,解决问题以保证在今后比赛中更好的发挥党技水平,全面提高国内男子摔跤运动员整体水平。 相似文献
19.
对自由式摔跤运动员损伤分析以及采取有效的预防措施能减少损伤的发生,促进训练中对错误技术动作的纠正,也是开展选材和竞技训练的重要手段。本文着重分析摔跤运动员出现损伤的各个因素和各种预防措施方法,对帮助进行自由式摔跤的运动员在训练中预防损伤和提高运动成绩有积极的意义与作用。 相似文献
20.
运用实地调查和比较研究法,对广东省自由式摔跤和古典式摔跤运动员的受伤年龄、运动员患病率、创伤分布、致伤情况和运动创伤发病率进行了统计、分析比较与讨论,提出了针对性的运动损伤防治建议. 相似文献