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1.
旋风脚是武术运动中置基本的跳跃动作之一。本文以旋风脚技术动作结构与要领的理论分析为依据,介绍了旋风脚的训练方法与手段,以期对提高旋风脚的训练效果有一定的帮助。 相似文献
2.
武术套路跳跃中旋风脚及连接难度动作分析 总被引：1，自引：0，他引：1
采用录像观察法、实验法、数理统计法,分析武术套路项目中旋风脚B级和C级跳跃难度及连接难度动作的运动学、动力学及生物学特征,发现:旋风脚单脚起跳速度远大于双脚起跳。根据肌电测试结果,旋风脚双脚和单脚起跳的起跳腿肌肉放电强度和时相有所区别,提示:不同的起跳方式应有针对性的辅助练习。 相似文献
3.
文章采用文献资料法、专家访谈法、逻辑分析法等研究方法,针对武术套路跳跃动作＂旋风脚＂的技术特点,从解剖学的角度分析该动作技术各个阶段所涉及参与工作的肌肉群,并提出相应的训练方法以提高＂旋风脚＂的高质量的完成。为广大武术爱好者提供训练参考。 相似文献
4.
竞技武术套路中旋风脚B级跳跃连接难度动作是长拳竞技武术项目的一个难度动作。通过对该组动作落地技术的动力学及相关稳定性因素的分析,可提出合理的落地技术和训练中需解决的问题。文章采用录像观察与试验分析相结合的方法,针对男、女运动员的腾空与落地的特点,提出相应的解决办法和训练理论。 相似文献
5.
长拳中的腾空旋风脚720°的动作技术分析 总被引：1，自引：0，他引：1
对安徽省武术队运动员的C级难度动作--腾空旋风脚720°技术动作进行高速摄影,通过图片分析,结合多媒体技术、分析完成该技术动作的相关技术的关系,以便指导训练,提高运动员的运动水平. 相似文献
6.
《武汉体育学院学报》2006,40(2):39
利用三维图像解析系统对我国优秀武术运动员旋风脚720°运动时间特征、身体重心位移特征、
身体重心的速度变化特征以及身体主要环节夹角的特征等进行分析与评价,旨在揭示其动作过程的运
动学特点与规律,建立整个动作的时间、位移、速度、以及相关环节间夹角等量化指标,从而为教学与训
练提供客观的理论依据。 相似文献
身体重心的速度变化特征以及身体主要环节夹角的特征等进行分析与评价,旨在揭示其动作过程的运
动学特点与规律,建立整个动作的时间、位移、速度、以及相关环节间夹角等量化指标,从而为教学与训
练提供客观的理论依据。 相似文献
7.
旋风脚在武术竞技套路中是最常见且难度系数较其他腾空动作要高的腾空动作之一,是在武术套路中经常被采用的一种腾空动作,因此运动员的受伤概率相对较多.文章通过对旋风脚支撑腿膝关节的受力及损伤机制进行分析,为习练者提供正确的训练方法,以预防旋风脚因支撑腿膝关节的错误受力而受到的损伤. 相似文献
8.
我国优秀武术运动员旋风脚720°三维图像特征分析 总被引：5，自引：1，他引：4
利用三维图像解析系统对我国优秀武术运动员旋风脚720°运动时间特征、身体重心位移特征、身体重心的速度变化特征以及身体主要环节夹角的特征等进行分析与评价,旨在揭示其动作过程的运动学特点与规律,建立整个动作的时间、位移、速度、以及相关环节间夹角等量化指标,从而为教学与训练提供客观的理论依据。 相似文献
9.
旋风脚转体540度动作的运动生物力学与解剖学分析 总被引：9，自引：0，他引：9
运用运动生物力学和运动解剖学理论 ,对旋风脚转体 540°技术动作进行分析 ,为教学和训练掌握合理的运动技术 ,提供理论依据 相似文献
10.
武术旋风脚720°接跌叉稳定性的研究 总被引：12，自引：0，他引：12
武术旋风脚 72 0°接跌叉是九运会武术指定动作之一。通过对该组动作落地技术的动力学以及构成稳定性条件的分析 ,提出合理的落地技术和训练中需解决的问题。 相似文献
12.
The goalkeeper’s difficulty in the soccer penalty kick originates from the extreme spatiotemporal constraints of the situation. The present review claims that the current understanding is biased toward attributing a goalkeeper’s success in saving a penalty kick to perceptual–cognitive skill. To investigate the goalkeeper’s skill, researchers have often adopted video tasks. In doing so, they studied perceptual skill in isolation from action. We use affordance-based control theory to propose an alternative understanding and research methodology. We argue that goalkeepers in the penalty kick situation should regulate their actions in ways that sustain the perception of stoppability. To capture this, we outline the building blocks for a required lateral velocity model, in which the goalkeepers’ required actions are scaled to their maximum capabilities. In doing so, we provide new directions for research. 相似文献
13.
跆拳道横踢动作的运动学分析 总被引：3，自引：0，他引：3
探讨了横踢动作的力学原理，就如何提高檄竭速度进行了分析。结论是：各关节速度曲线中，髋关节速度较小并且变化不大；膝关节、踝关节和脚尖的速度曲线变化明显；膝关节较早达到速度峰值，然后3dL速，接着在场中目标瞬间踝和脚尖几乎同时达到速度最大住。 相似文献
14.
Shan G Westerhoff P 《Sports biomechanics / International Society of Biomechanics in Sports》2005,4(1):59-72
Many studies try to understand fundamental soccer skills, most focusing on kicking. However, a full picture of an efficient kick remains incomplete owing to constraints of test designs and difficulties that arise in synchronizing and analyzing information generated by multiple assessment techniques. Previous scientific studies may be generally categorized as: two-dimensional kinematic analysis using high-speed cameras, muscle activity studies using electromyography, three-dimensional analysis of the kicking-leg using a partial-body model, and kinetic studies using force measurements and modelling. No existing inquiries have used full-body three-dimensional motion capture and modelling to examine kicking. The current study remedies this deficiency and defines a full-body model capable of revealing more detailed characteristics of kicking. Additionally, it reveals effects of long-term training by comparing novices with skilled athletes and explores new parameters that have potential to aid quantitative evaluations of skill. Results show effective upper-body movement to be a key factor in creating better initial conditions for a more explosive muscle contraction during kicking. It permits a more powerful quasi whip-like movement of the kicking leg. Finally, the timely change of distance between the kick-side hip and the non-kick-side shoulder provides a quantitative means of measuring kick quality. 相似文献
15.
Jader Sant’Ana Emerson Franchini Vinicius da Silva 《Sports biomechanics / International Society of Biomechanics in Sports》2017,16(2):201-209
Reaction time and response time are considered important abilities and can potentially affect combat performance. This study investigated the effect of a specific fatigue protocol on reaction time, response time, performance time, and kick impact. Seven male athletes reported to the laboratory on two different days. During day one, athletes performed a specific progressive taekwondo test, and on day two, a protocol for determining reaction time, response time, performance time, and kick impact before and after a time to exhaustion test at an intensity level corresponding to the maximal kick frequency obtained during the specific progressive taekwondo test. Muscle activation from rectus femoris and kick impact of the preferred limb were assessed. No differences were observed for response time and performance time. However, kick impact decreased (43 ± 27 to 13 ± 10 g, p < 0.01) while reaction time increased (145 ± 51 to 223 ± 133 ms, p < 0.05). Moderate correlation was observed between kick impact and response time (r = 0.565; p < 0.01), and kick impact and performance time (r = 0.494; p < 0.05). Results indicate that coaches and athletes may use taekwondo training programmes on coordination-based exercises leading to improve response time and to reduce fatigue effects in order to improve technique effectiveness and enhance the possibilities of scoring in a competitive situation. 相似文献
16.
Henrik S⊘rensen Morten Zacho Erik B. Simonsen Poul Dyhre‐Poulsen Klaus Klausen 《Journal of sports sciences》2013,31(6):483-495
Fast unloaded movements (i.e. striking, throwing and kicking) are typically performed in a proximo‐distal sequence, where initially high proximal segments accelerate while distal segments lag behind, after which proximal segments decelerate while distal segments accelerate. The aims of this study were to examine whether proximal segment deceleration is performed actively by antagonist muscles or is a passive consequence of distal segment movement, and whether distal segment acceleration is enhanced by proximal segment deceleration. Seventeen skilled taekwon‐do practitioners were filmed using a high‐speed camera while performing a high front kick. During kicking, EMG recordings were obtained from five major lower extremity muscles. Based on the kinematic data, inverse dynamics computations were performed yielding muscle moments and motion‐dependent moments. The results indicated that thigh deceleration was caused by motion‐dependent moments arising from lower leg motion and not by active deceleration. This was supported by the EMG recordings. Lower leg acceleration was caused partly by a knee extensor muscle moment and partly by a motion‐dependent moment arising from thigh angular velocity. Thus, lower leg acceleration was not enhanced by thigh deceleration. On the contrary, thigh deceleration, although not desirable, is unavoidable because of lower leg acceleration. 相似文献
17.
Flight dynamics of the screw kick in rugby 总被引：1，自引：1，他引：0
This paper describes the aerodynamic forces and the flight trajectory for the screw (spiral) kick in rugby. The screw kick
is defined as that which causes the ball to spin on its longitudinal axis. The aerodynamic forces acting on a rugby ball spinning
on its longitudinal axis were measured in a wind tunnel using a six-component strut type balance. It was found that the drag,
the lift and the pitching moment depend on the angle of attack, while the side force (Magnus force) depends on both the spin
rate and the angle of attack in the range where the wind speed lies between 15 and 30 m s-1 and the spin rate is between 1 and 10 revolutions per second. Moreover, the flight trajectory was obtained by integrating
the full nonlinear six degrees of freedom equations of motion on the basis of aerodynamic data. In a simulation, a ball spinning
on its longitudinal axis tended to hook toward or away from the touchline even if the velocity and angular velocity vectors
were parallel to the touchline. The direction of the hook depends on the direction of the angular velocity vector. The initial
direction of the hook depends on the relationship between the flight path angle and the pitch angle as well as the direction
of the angular velocity vector. 相似文献
18.
AbstractIn taekwondo, the stance position can potentially affect kick performance. The aim of this study was to analyse mechanical variables in the roundhouse kick in taekwondo according to three stance positions (0°, 45°, 90°). Nine experienced taekwondo athletes performed consecutive kicking trials in a random order according to these three relative positions of the feet on the ground. Measurements for the mechanical analysis were performed using two 3D force plates and an eight-camera motion capture system. The taekwondo athletes’ reaction and execution times were shorter when starting from the 0° and 45° stance positions than from the 90° position (P < 0.05). Moreover, the ground reaction force was negatively correlated with execution time and positively with velocity of thigh and shank. Our results suggest that the stance position affects the execution technique of taekwondo athletes’ kicks. It is suggested that athletes should not adopt the 90° stance position because it will not enable them to achieve the best performance in the roundhouse kick. 相似文献
19.
van der Kamp J 《Journal of sports sciences》2006,24(5):467-477
This field experiment investigated the relative merits of approaching the penalty kick with either a keeper-independent or keeper-dependent strategy. In the keeper-independent strategy, the shooter selects a target location in advance and disregards the goalkeeper's actions during the run-up. In the keeper-dependent strategy, the shooter makes a decision resting on the anticipation of the goalkeeper's movements during the run-up. Ten intermediate-level soccer players shot at one of two visually specified targets to the right and left side of the goal. In the keeper-independent strategy condition, participants were told that the visually specified target would not change. In the keeper-dependent strategy condition, participants were told that in half of the trials the visually specified target would change side at different times before ball contact, indicating that the direction of the kick needed to be altered. The results showed that penalty-taking performance was apt to be less than perfect in the keeper-dependent strategy condition. A decrease in the time available to alter kick direction resulted in a higher risk of not only an incorrect but also inaccurate shot placement. It is concluded that anticipating the goalkeeper's movements may degrade penalty kick performance, mainly due to insufficient time to modify the kicking action. 相似文献
20.
起跳技术是跆拳道运动员获得腾空高度的关键。利用运动学方法对起跳技术的下蹲和蹬离两个阶段的技术动作以及起跳技术的影响因素进行运动力学分析;对起跳技术的运动学参数进行了解析,结果显示：体重、蹬离角、蹬离垂直起跳时间、地面垂直作用力和髋、膝、踝三关节的控制和柔韧性等因素对跆拳道起跳技术有显著影响。最后,给出了提高跆拳道运动员起跳技术质量的几点建议。 相似文献