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1.
通过对接受不同专业训练的成年男子进行递增负荷的6s连快速卧推测试，结果显示：不同专项运动员上肢无氧功率各不相同，且各有其专项特点。同时也进一步证明该测试方法的可行性。 相似文献
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不同项目类型运动员上下肢无氧功率测定及比较 总被引：5，自引：1，他引：5
本实验着重研究有关上肢Wingate法测试有关问题,同时与下肢测定结果相比较,研究不同项目类型运动员上、下肢无氧功率的特点。实验结果证明,测试人体上、下肢无氧能力最适负荷可由瘦体重一负荷回归方程得出;运动员上、下肢无氧功峰值间存在高度相关;疲劳度内环境变化无氧能力密切相关;下肢最大静力值与下肢无氧功高度相关。 相似文献
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采用高精度多频率生物阻抗分析技术和40s Wingate实验,对中北大学20名男跆拳道运动员进行身体成分和无氧代谢的测试,通过分析身体成分和无氧代谢的内在联系,探寻某些潜在的特征联系。研究发现:中北大学跆拳道一级运动员与二级运动员相比身高、体重、身体质量指数、上肢、躯干肌肉量无显著性差异,但体脂、体脂肪率明显比二级运动员要低,去脂体重、最大、小功率、平均功率、下肢的肌肉量及总肌肉量明显比二级运动员要高。跆拳道运动员身高、上肢及躯干肌肉量与无氧功率无显著相关性,但是体重、去脂体重、下肢肌肉量及总肌肉量与无氧功率呈高度相关性,体脂肪率、体脂肪量与无氧功率呈显著负相关性。 相似文献
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武术散打训练对人体无氧工作能力影响的研究 总被引：4，自引：0，他引：4
为探讨散打训练对人体无氧工作能力的影响，对40名体育教育专业武术散打训练学生进行Wingate无氧实验。结果表明，武术散打训练可提高人体无氧功率能力，加快运动启动速度；用Wingate无氧实验评价时，前10s无氧功率值的高低比其递增的幅度，更能反映散打训练效果；30sWingate无氧实验主要反映出散打训练对人体无氧功率的影响，而对无氧能力的评价不明显；Wingate无氧实验对评定散打训练效果和水平更具有指导意义。 相似文献
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为了解体育专业学生和普通学生无氧能力的差异，不同无氧测试方法的特点和互相关系，采用MONARK894E无氧功率自行车和HUR测力台对27名体育专业男大学生和10名普通学生无氧功能进行测试，测试学生纵跳、10s和30s的无氧能力，收集最大功率、平均功率等指标。体育专业学生不同无氧测试输出功率均高于普通学生，不同专业体育生无氧能力指标无显著差异，无氧功率自行车和HUR测力台测试的最大输出功具有显著正相关。体育专业学生无氧能力强于普通学生，不同专项体育大学生无氧能力无显著差别，测力台测试结果可以预测大学生较长时间的无氧能力。 相似文献
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用Wingate无氧试验方法进行最大输出功率的测量,依此来评价运动员的无氧能力的好坏的方法在国内外被广泛地应用。根据希尔方程的原理,本研究认为该测量方法具有其局限性。为了解决该问题,提出了多负荷测试的方法。为了检验该方法,用无氧功率自行车Monark 894E对8名体育专业的学生进行了测试,所得数据通过数理统计分析,认为可以建立个体最大输出功率的评价标准,用此标准可以动态地评价运动员的无氧能力。 相似文献
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优秀中国式摔跤运动员无氧代谢能力特征的研究 总被引：6，自引：0，他引：6
目的:比较不同性别、不同训练水平优秀中国式摔跤运动员磷酸原、糖酵解和混合无氧供能能力的特征.方法:对27名优秀中国式摔跤运动员进行10 s、30 s和60 s无氧功测试,记录相关功率指标及运动后血乳酸.结果:磷酸原和糖酵解代谢供能能力有明显性别差异,男子10 s、30 s和60 s的最大功率、相对最大功率、平均功率、相对平均功率和疲劳指数均明显高于女子,但男、女运动员的血乳酸无明显差异;男子优秀组运动员10 s、30 s和60 s的最大功率和平均功率明显高于普通组,但优秀组和普通组间相对最大功率和相对平均功率无明显差异.女子优秀组10 s、30 s和60 s的最大功率显著高于普通组,但相对最大功率、平均功率、相对平均功率和疲劳指数无显著性差异;与散打相比,中国式摔跤运动员表现出较强的无氧代谢能力,但与自行车、举重和体操项目相比其无氧代谢能力较差.结论:优秀中国式摔跤运动员具有较强的无氧代谢能力,且男子明显高于女子;不同水平中国式摔跤运动员的无氧代谢能力具有明显差异,男、女优秀组分别明显高于普通组;结合中国跤运动员10 s、30 s和60 s无氧功相关指标,测定运动前、后的血乳酸变化,能更客观全面地反映优秀中国跤运动员的无氧代谢能力. 相似文献
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对126名男女青少年运动员30sWingate无氧功试验结果表明：女子在15岁、男子在16岁最大无氧功率值、平均无氧功率值增长幅度较大.女子在14岁-16岁期间的最大无氧功率值、平均无氧功率值呈上升趋势,在14岁-15岁期间的相对最大无氧功率值、相对平均无氧功率值呈上升趋势,在15岁-16岁期间的相对最大无氧功率值保持不变,相对平均无氧功率值呈下降趋势.男子在15岁-17岁期间的最大无氧功率值、平均无氧功率值呈上升趋势,但是相对最大无氧功率值、相对平均无氧功率值呈下降趋势.提示女子在15岁、男子在16岁应注意训练方式与手段的改进,以促进青少年运动员无氧功率得到发展. 相似文献
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运动生物力学多参数同步测试系统的研究与开发 总被引：2，自引：0，他引：2
对众多的运动生物力学检测手段实现同步的统一处理,已经成为运动生物力学研究方法的一个重要方面,对提高运动生物力学科学研究能力和水平,促进运动生物力学学科发展具有举足轻重的意义.但由于测试仪器的生产厂商不同,造成信号规格和同步方式不统一,给这些仪器测得数据的同步造成困难.结合运动生物力学科研的实践,在应用现有运动生物力学测试仪器基础上开发出一套集视频、表面肌电、足底压力、三维测力台、激光测速于一体的同步测试系统.该系统首次将各仪器的相对延迟时间考虑到同步处理中,具有同步精度高,系统硬件传输距离远、稳定、可靠,系统软件界面友好、数据显示直现等特点,具有较好的应用与推广价值.此外,对其他测试仪器数据的同步处理也可提供一些思路. 相似文献
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A determination of the dynamic response of softballs 总被引：3，自引：3，他引：0
An apparatus is described for measuring the stiffness and coefficient of restitution (COR) of balls with application to softballs.
While standardized test methods currently exist to measure these properties, they do not represent the displacement rate and
magnitude that occur in play. The apparatus described herein involves impacting a fixed, solid cylindrical surface (matched
to the diameter of the bat) with a ball and measuring the impact force during impact and speed of the ball before and after
impact. The ratio of the ball speeds determines the COR, while the impact force is used to derive a ball stiffness. For an
example of the contribution of the new ball test, the performance of hollow bats, which is sensitive to ball stiffness, was
compared. Bat performance showed a much stronger dependence on the proposed ball stiffness than the traditional measure. Finally,
it was shown that to achieve similar conditions between impacts with fixed and recoiling objects, the impact speed should
be chosen so that the centre of mass energy was the same in the two cases. The method has application to associations wishing
an improved method to regulate ball and bat performance. 相似文献
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五禽戏新功法锻炼者心理健康效应分析 总被引：14，自引：3，他引：11
采用许军等编制的自测健康评定量表、锻炼自觉效果评价表、注意力集中到试仪，对练习2个半月左右五禽戏新功法的锻炼者进行前后测试比较。结果显示，新创编的五禽戏较为简便易学，对于稳定情绪，调节身心状态，改善生活质量等具有一定效果。 相似文献
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The purpose of this study was to construct and evaluate the reliability of an apparatus for testing golf putters with respect to distance and direction deviation at different impact points on the clubface. An apparatus was constructed based on the pendulum principle that allowed putter golf clubs to swing at different speeds. The mean speed of the club head before ball impact, and of the ball after impact, was calculated from time measurements with photocells. A pin profile rig was used to determine the directional deviation of the golf ball. Three different putters were used in the study, two that are commercially available (toe-heel weighted and mallet types) and one specially made (wing-type) putter. The points of impact were the sweet spot (as indicated by the manufacturer's aim line), and 1, 2 and 3 cm to the left and right of the sweet spot. Calculation of club head speed before impact, and of ball speed after impact (proportional to distance), showed errors < or = 0.5% of interval duration. The variability in ball impacts was tested by measuring time and direction deviations during 50 impacts on the same ball. The mean duration (+/- s) after ball impact in the test interval (1.16 m long) was 206 (0.8) ms and the standard deviation in the perpendicular spreading of the balls in relation to the direction of the test interval was 0.005 m. A test-retest of one putter on two consecutive days after remounting of the putter on the test apparatus showed less than 1% difference in distance deviation. We conclude that the test apparatus enables a precise recording of distance and direction deviation in golf putters as well as comparisons between different putters. The apparatus and set-up can be used in the laboratory as well as outdoors on the putting green. 相似文献
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采用自制“针刀”治疗慢性运动创伤96例。疗效结果显示，经一次治疗达痊愈者59例，占61．5％。经二次治疗痊愈者达74例，占77．1％，总有效率为97．9％，显效率为88．5％。表明：自制“针刀”对于治疗慢性运动创伤具有显著的作用，可作为一种有效的手段，在临床上推广使用。 相似文献
18.
Ana Torres-Costoso Luis Gracia-Marco Mairena Sánchez-López Jorge Cañete García-Prieto Antonio García-Hermoso Ana Díez-Fernández 《Journal of sports sciences》2015,33(8):817-830
This report aims to analyse the independent association of lean mass and muscle fitness with bone mineral content (BMC) and bone mineral density (BMD), and to examine whether the relationship between muscle fitness and bone health is mediated by lean mass. Body composition (by dual energy X-ray absorptiometry (DXA)), muscle fitness, physical activity, age and height were measured in 132 schoolchildren (62 boys, aged 8–11 years). Analysis of covariance tested differences in bone-related variables by lean mass and muscle fitness, controlling for different sets of confounders. Linear regression models fitted for mediation analyses examined whether the association between muscle fitness and bone mass was mediated by lean mass. Children with good performance in handgrip and standing long jump had better and worse bone health, respectively. These differences disappeared after controlling for lean mass. Children with high lean mass had higher values in all bone-related variables. In addition, the relationship between muscle fitness and bone mass was fully mediated by lean mass. In conclusion, the relationship between upper-limbs muscle fitness and bone health seems to be dependent on lean mass but not on muscle fitness. Schoolchildren with high lean mass have more BMC and BMD in all regions. Lean mass mediates the association between muscle fitness and bone mass. 相似文献
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Johnny Nilsson 《Journal of sports sciences》2013,31(2):143-147
Abstract The purpose of this study was to construct and evaluate the reliability of an apparatus for testing golf putters with respect to distance and direction deviation at different impact points on the clubface. An apparatus was constructed based on the pendulum principle that allowed putter golf clubs to swing at different speeds. The mean speed of the club head before ball impact, and of the ball after impact, was calculated from time measurements with photocells. A pin profile rig was used to determine the directional deviation of the golf ball. Three different putters were used in the study, two that are commercially available (toe-heel weighted and mallet types) and one specially made (wing-type) putter. The points of impact were the sweet spot (as indicated by the manufacturer's aim line), and 1, 2 and 3 cm to the left and right of the sweet spot. Calculation of club head speed before impact, and of ball speed after impact (proportional to distance), showed errors ≤ 0.5% of interval duration. The variability in ball impacts was tested by measuring time and direction deviations during 50 impacts on the same ball. The mean duration (± s) after ball impact in the test interval (1.16 m long) was 206 (0.8) ms and the standard deviation in the perpendicular spreading of the balls in relation to the direction of the test interval was 0.005 m. A test – retest of one putter on two consecutive days after remounting of the putter on the test apparatus showed less than 1% difference in distance deviation. We conclude that the test apparatus enables a precise recording of distance and direction deviation in golf putters as well as comparisons between different putters. The apparatus and set-up can be used in the laboratory as well as outdoors on the putting green. 相似文献
20.
Franklin M. Henry 《Research quarterly for exercise and sport》2013,84(2):155-159
Abstract Independent estimates of the errors of measurement and the intra-individual variations have been made for arm strength (Smedley dynamometer) and vertical jumping (Henry apparatus). The intra-individual variations are much larger than the measurement errors; thus they constitute the chief factor that determines test-retest reliability in these two physical performances. The tolerable error for measuring strength is ± 0.82 kg.; for jumping it is ± 0.5 in. In order to avoid loss of accuracy, it is necessary to read the dial or scale with approximately twice this precision. The method of computing test-retest reliability as the ratio of “true score” variance to total variance is found to underestimate the coefficient when the variability of test and retest scores differs by more than 15 percent. A formula for correcting this attenuation is presented. 相似文献