共查询到18条相似文献，搜索用时 718 毫秒
1.
通过文献资料法,对近年来单脚起跳扣球技术的研究现状及成果进行分析。结果表明:单脚起跳扣球在比赛中已显示出了强大的威力,它的技术特点及攻击效果是双脚起跳扣球无法代替的;单脚起跳扣球的助跑过程减少了踏跳并步这一环节,有利于发挥助跑速度;在单脚起跳扣球技术的研究中,应借鉴双脚起跳扣球引用的指标,使研究更加完整。为了技术的完整性,避免运动损伤,延长运动寿命,有必要对落地技术进行定量分析。 相似文献
2.
一、双脚起跳扣球技术的特点1.速度快。双脚起跳扣球,起跳后易控制身体的平衡、动作舒展、扣球力量大,而单脚起跳从最后一步助跑到起跳,身体起伏大,腿部弯曲的角度和上体前屈的角度相对较大,身体不能较好的控制平衡,双脚起跳最后一步只需到达起跳点即可起跳;同时,在蹬地跳起时, 相似文献
3.
运用测试与实验等多种研究方法，论证了排球“同侧”单脚起跳扣球技术应用的可行性和在某些方面的优越性。结果表明，“同侧”单脚起跳与“异侧”单脚起跳扣球技术的结合使用；能弥补单一形式的单脚起跳扣球的不足，更能发挥人体的灵活性和适应性，从而为排球运动员提供了一种容易操作的新技术。 相似文献
4.
快速进攻是我国排球的传统特点,也是今后发展的方向。应当充分运用一切有利于发展快速进攻的因素。而单脚起跳就是一种有利的因素。但目前国内、国际上都还没有加以利用。我们应当加以研究运用,为迅速赶超世界先进水平作出贡献。分析单脚起跳动作,由于右脚不需要踏地下蹲再起跳,而是直接上摆助跳,因此缩短了起跳的过程。同时,右腿上摆不但有助于扣球的右手上举,也可以代替摆臂助跳的作用,腾出手来集中于扣球,从而可以更快地下手击球。从电影片上计算,单脚起跳从最后一步着地到空中击 相似文献
5.
目前,我国女排中快速进攻的战术已日趋成熟,并出现了单脚起跳背飞扣球这种新的快速进攻技术。单脚起跳背飞扣球技术是单脚起跳背快扣球技术的进一步发展,其不仅保持了单脚起跳背快球的特点,并加大了空间移位距离,增加了有效进攻时间和进攻 相似文献
6.
对优秀男排队员后排扣球技术助跑起跳动作环节的分析 总被引：3，自引：0，他引：3
白海波 《沈阳体育学院学报》1995,(4)
对我国优秀男排队员的后攻技术助跑起跳环节进行分析研究，得出如下结论：后排扣球时，助跑速度快，最后助跑制动动作表现出第三步步幅适中，着地瞬间后倾角小的技术特点。由于起跳瞬间两足间距离长，因而决定了两足蹬伸离地为依次性的，先右足，后左足，左足在整个蹬伸过程中占有重要地位。后排扣球起跳初速度大于前排扣球，并以接近于４５°的腾起角跃起，因而决定了后排扣球起跳起落点间距离大的特点。 相似文献
7.
对我国优秀女排队员单脚起跳扣球技术动作分析——背飞与背快扣球技术动作的比较 总被引：1，自引：0，他引：1
运用三维高速录像解析法对中国女排队员刘亚男单脚起跳背飞与背快扣球技术进行了现场拍摄和数字化解析.结果表明,背飞扣球技术的助跑速度为5.86m/s,高于背快扣球助跑速度2.95m/s,助跑速度快是单脚起跳背飞扣球在助跑环节的主要技术特征;背飞扣球在左脚着地瞬间,几乎是以全脚掌形式来完成制动向前的水平速度,具有积极性起跳技术特征;背快扣球是以脚跟先着地逐步过渡到前脚掌的形式来完成制动向前的水平速度,具有消极性起跳技术特征;背飞和背快扣球的起跳时间相同,为0.26s.但两种扣球技术起跳环节在缓冲和蹬伸的时间分配却不相同. 相似文献
8.
单脚起跳勾手扣球技术小议邢红林单脚起跳扣球技术是由中国女排首先运用，并创立了以单脚起跳背飞扣球为中心的快攻战术系统，是中国女排夺得“五连冠”的法宝。但近几年由于世界各队的逐渐适应和效仿，威力已不如从前。因此必须发展和创新才能进一步丰富自己。笔者从近年... 相似文献
9.
对于初学排球技术的学生来说，要让他们掌握复杂的排球扣球技术，不是一件容易的事，作为一名教师，要上好扣球技术的教学课，提高教学质量，就必须充分调动学生的学习积极性，采取有针对性的、行之有效的教学手段和方法。扣球技术是由助跑起跳、扣球手法、挥臂击球、落地等几方面组成的，因此，在学习扣球技术时，要采取分解的教学方法。一、助跑起跳教学方法是在助跑有节奏的前提下，从基本的二步、三步学起，要点是速度上由慢到快，步幅上由小到大。常采取的练习方法有：1. 在正常走的情况下，进行二、三步助跑起跳，要求节奏明显，步伐… 相似文献
10.
试析助跑单脚起跳扣球动作技术原理 总被引：1，自引：1，他引：0
余万予 《沈阳体育学院学报》1984,(1)
排球运动员的助跑单脚起跳扣球,过去一般仅作为“在二传落点较集中,来不及双脚起跳时采用”(注一)的应急动怍技术;因此,对该技术原理分析甚少,各运动队也很少对此进行专门训练。随着排球运动的不断发展,为丰富我国的快攻打法,助跑单脚起跳扣球技术已逐渐成为有用的快球技术之一。辽宁女排自1979年开始实验运用此技术;在1980年10月重庆联赛中,运用这种打法的命中率为69.2％,其中于晓飞的扣死率 相似文献
11.
中外优秀男排选手前排扣球技术的三维运动学比较研究 总被引：10，自引：4，他引：6
通过三维高速录像研究表明 ,中国选手具有起跳时间短 ,两脚同时蹬地的起跳特征 ;外国选手具有起跳时间长 ,两脚依次蹬地的起跳特征。扣球是以转体、伸肩和收腹带动挥臂击球的三维动作 ,转体和伸肩动作占有重要作用。击球瞬间肘关节呈 15 0 (°)左右略屈肘击球能充分发挥前臂旋内加速功能。 相似文献
12.
现代排球扣球技术研究进展综述 总被引：1，自引：0，他引：1
杨志林 《体育科技文献通报》2010,18(2):125-126
通过对近年来排球扣球技术主要研究成果进行文献资料的梳理与分析探究,结果显示：扣球技术的高度获取与助跑速度最后一步步幅有很大关系,一般运动员运用的是跨步式和并步式两种起跳方式;运动员在扣球时身体呈＂〈＂型和＂[＂型两种姿势,髋角度幅度变化大,挥臂速度就快;手臂肘关节甩直角度越大,指掌关节获得的速度越大,球速越快,且手臂速度的获得与腰的爆发力有关;为了更好地与其他技术动作相衔接,有必要对落地技术进行分析和研究。 相似文献
13.
为了探究躯干转动在背越式跳高起跳、腾空阶段的生物力学规律,采用文献资料法、影像分析法、数理统计法等研究方法,对国内9名优秀男子跳高运动员进行运动学分析。研究结果显示：运动员起跳过程中3个时间点躯干纵轴与Y轴的夹角均值分别为(74.8±1.9）°、(81.3±1.9)°、(92.5±2.0)°;躯干三环节与XOY面夹角减小和增加的顺序（由快到慢）是：胸部段>腹部段>髋部段。研究认为：起跳离地瞬间适宜的躯干纵轴外倾角度（92°左右）除了可以避免身体碰触横杆和提高身体垂直速度外,还可以使身体获得足够的翻转角动量;在起跳和腾空过杆过程中,肩部发挥了引领作用。 相似文献
14.
Tsuyoshi Takeda Hideki Takagi Shozo Tsubakimoto 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(3):370-381
This study investigated the effects of both anterior–posterior position and inclination of a back plate positioned on a starting platform on swimming start performance. Ten male college swimmers performed eight starts with varying combinations of take-off angle (normal and lower), inclination angle (10°, 25°, 45°, and 65°) and position (0.29, 0.44, and 0.59 m from the front edge of the starting block). Two-way repeated measures analysis of variance (ANOVA; take-off angle × back plate) for four conditions with take-off angles (normal and lower) and inclinations (10° and 45°), and one-way ANOVA for comparisons between four inclinations and three positions were carried out. Multiple comparisons were made using Bonferroni's method. The main effects of the take-off angle were on the vertical and resultant take-off velocities [F(1,18) = 36.72, p < 0.001 and F(1,18) = 9.58, p = 0.013, respectively]. Comparisons between the plate positions showed that the 5 m time of the 0.29 m condition was significantly longer, the take-off angle and vertical take-off velocity of the 0.59 m condition were significantly lower, and horizontal and resultant take-off velocities of the 0.29 m condition were significantly less. Rear foot take-off times were significantly longer in the ascending order: 0.29, 0.44, and 0.59 m. 相似文献
15.
One of the dominant skills in badminton is the forehand overhead smash, which consists of 1/5 attacks during games. Empirical evidences show that one has to adjust the body position in relation to the coming shuttlecock to produce a powerful and accurate smash. Therefore, positioning is a fundamental aspect influencing smash quality. Unfortunately, a search of literature has shown that there is a dearth/lack of study on this fundamental aspect. The goals of this study were to determine the influence of positioning and training experience on smash quality in order to discover information that could help learn/acquire the skill. Using 3D motion capture and full-body biomechanical modelling, 14 skilled and 15 novice players were analysed. Results have revealed that the body positioning has direct influence on shuttlecock release angle and clearance height of the offensive player. The results also suggest that, for training the positioning of beginners, one could conduct a self-selected comfort position towards a statically hanged shuttlecock and then step one foot back – a practical reference marker for learning. As one gains experience through repetitive training, improved limbs’ coordination would increase smash quality further. We hope our findings will benefit practitioners for developing effective training programmes for beginners. 相似文献
16.
运用文献资料、访谈、调查、数理统计等方法对我国优秀女子撑竿跳高运动员专项能力结构进行了研究。结果表明,我国优秀女子撑竿跳高运动员专项能力结构由形态技术能力因子、助跑起跳能力因子、力量因子、起跳控制效果能力因子四方面构成,其对专项能力的贡献依次为形态技术能力因子、助跑起跳能力因子、力量因子、起跳控制效果能力因子。专项能力结构体系通过技术、素质2个层面,4个要素来反映;建立了撑竿跳高的结构特征模型,选取模型中载荷较高的握竿高度、最后5m助跑速度、卧推、左肘角度作为女子撑竿跳高运动员专项能力模型的代表指标。 相似文献
17.
In this study, we found that the optimum take-off angle for a long jumper may be predicted by combining the equation for the range of a projectile in free flight with the measured relations between take-off speed, take-off height and take-off angle for the athlete. The prediction method was evaluated using video measurements of three experienced male long jumpers who performed maximum-effort jumps over a wide range of take-off angles. To produce low take-off angles the athletes used a long and fast run-up, whereas higher take-off angles were produced using a progressively shorter and slower run-up. For all three athletes, the take-off speed decreased and the take-off height increased as the athlete jumped with a higher take-off angle. The calculated optimum take-off angles were in good agreement with the athletes' competition take-off angles. 相似文献
18.
Nicholas P Linthorne Maurice S Guzman Lisa A Bridgett 《Journal of sports sciences》2013,31(7):703-712
In this study, we found that the optimum take-off angle for a long jumper may be predicted by combining the equation for the range of a projectile in free flight with the measured relations between take-off speed, take-off height and take-off angle for the athlete. The prediction method was evaluated using video measurements of three experienced male long jumpers who performed maximum-effort jumps over a wide range of take-off angles. To produce low take-off angles the athletes used a long and fast run-up, whereas higher take-off angles were produced using a progressively shorter and slower run-up. For all three athletes, the take-off speed decreased and the take-off height increased as the athlete jumped with a higher take-off angle. The calculated optimum take-off angles were in good agreement with the athletes' competition take-off angles. 相似文献