共查询到18条相似文献，搜索用时 78 毫秒
1.
对蒋丞稷100m蝶泳出发、途中游、转身、冲刺各阶段技术进行分析,并与国内外优秀选手比較显示,蒋丞稷出发反应时和出发15m技术达到世界先进水平;途中游划幅较大,划频较低;转身前7.5m较25-50m游速减慢0.03米/秒,这是蒋丞稷100m蝶泳技术中较为薄弱环节;终点冲刺没有明显减速,但其冲刺前加速游能力还不如国內外优秀选手,有待进一步提高。 相似文献
2.
通过对我国优秀游泳运动员在大型比赛中所获得的3000多个数据进行比较分析,客观评价我国优秀运动员百米比赛过程11。的技术特征及各段落的表现耐力。结 j台: 一、我国优秀游泳运动员比赛各段落平均速度顺序是①出发段一②转身段一③前程途中游段一④后程途中游段,⑤终点冲刺段。这一结果说明我国选手终点冲刺能力较差,冲刺平均速度慢于途中游的速度。 __:、我国运动员出发技术有所改进,但还不够稳定,应加强出发技术的练习。 相似文献
3.
中、外优秀男子100 m蝶泳运动员技术对比分析 总被引：3，自引：2，他引：1
本文对我国8 运会前3 名优秀男子蝶泳运动员和第26 届奥运会蝶泳比赛前6 名运动员的出发反应时、出发15 m ,途中游的划频与划幅,转身前后,7.5 m 技术以及冲刺到边进行了对比分析。结果表明,中国蝶泳运动员出发技术较好,划频能力不如国外优秀运动员,划幅较大,但划频与划幅的组合不尽合理;转身技术最为薄弱,表现在转身前减速,转身蹬前有停顿,与国外优秀运动员转身技术上存在一定差距;冲剌到边技术尚可,但仍有待精雕细刻。建议我国蝶泳运动员应重视基本技术和全面身体素质训练,根据个人技术、素质特点调整划频、划幅的组合;必须解决好转身技术环节,熟练掌握转身前的距离 相似文献
4.
通过对我国九运会女子 10 0m自由泳前 3名运动员和第 2 7届奥运会同项目前 3名运动员技术比较的数理统计分析发现 ,我国女子前 3名运动员 15m出发段的速度略低于外国优秀运动员 ;途中游的划水频率不如国外运动员 ,划水幅度与 2 7届前 3名运动员持平 ,5 0m绝对速度与国外运动员相比差距较大 ;转身段的表现也不如国外运动员 ;中国优秀运动员冲刺到边段表现出色 ,略优于国外运动员 ,展示出良好的速度耐力和顽强的意志品质。 相似文献
5.
从佩尔索和赵菁看优秀仰泳运动员的技术发展趋势 总被引：1，自引：0，他引：1
美国佩尔索和中国赵菁是当今两位优秀仰泳运动员,对他们的技术进行分析和探讨,可以帮助教练员改进训练方法。我们将根据我国现有的途中游分段划分方法,从出发技术,途中游技术、转身技术和冲刺技术四个方面进行分析和论述。 相似文献
6.
运用录像解析法、数理统计法等方法,对伦敦奥运会400m自由泳比赛中孙杨、朴泰桓从出发、途中游、分段成绩等竞技表现指标进行分析.结果表明:孙杨途中游技术完美,对身体的控制比较精确,耐力出众,冲刺能力大幅提高,出发和转身技术有所改善;朴泰桓出发技术出色,技术风格独特、冲刺能力突出.孙杨、朴泰桓分段成绩曲线均呈“左倾”态,而且都表现出明显的“第一次加速”.二人在预赛、决赛中战术灵活多变,表现出很强的战术控制能力. 相似文献
7.
以200m竞技游泳项目为切入点,采用速度系数的数理统计方法对优秀游泳运动员的体能分配方式进行矩阵分析。结果表明：（1）大多数顶尖选手采用了第一个50m最快,第三个分段最慢的体能分配方式;（2）中国运动员多在第一个分段速度系数较高,游速较快,对后程冲刺阶段的速度耐力的重视程度不如开始和途中游阶段;国际顶尖选手,前分段与后分段相差较小,体力分配比较均匀。 相似文献
8.
游泳比赛是由出发、途中游、转身、终点冲刺和到边技术5个环节组成,游泳出发技术作为第一个环节十分重要,这是因为随着世界竞技游泳水平的提高和比赛的日益激烈,在以1/100秒决定胜负的游泳比赛中出发技术有时直接影响着比赛的名次和成绩,它在50米和100米的短距离冲刺项目上尤其 相似文献
9.
通过对2000年悉尼奥运会，2003年巴塞罗那世界游泳锦标赛以及2005年南京十运会三次游泳比赛的分段成绩、参赛女子运动员的年龄的分析、各主要技术参数（包括出发、转身、途中、划频、划幅、游速等）的比较，分析当今中外优秀女子400m、800m自由泳选手的技战术特点，了解我国选手与世界优秀选手的差距，明确赶超的目标，寻找突破的方向，为我国今后在女子长距离自由泳项目上的发展提供技术参数和参考建议。 相似文献
10.
采用录像解析法、观察法等,对庞佳颖备战第29届奥运会自由泳技术进行诊断.结果显示:庞佳颖自由泳途中游技术中换气动作细节影响其身体位置与划水效果;出发的入水环节技术以及在出发、转身后的潜水海豚式打腿技术是制约其竞技水平的关键因素.提出对策:优化影响途中游身体位置、身体姿势流线型呼吸时的头部动作,注重发挥和利用核心力量,提高划水实效;实现出发潜水海豚式打腿技术突破,提高出发和转身阶段成绩,形成制胜技术特长. 相似文献
11.
C. Tourny-Chollet D. Chollet S. Hogie C. Papparodopoulos 《Journal of sports sciences》2013,31(5):383-390
The aims of this study were (1) to evaluate the different turn phases of 200 m butterfly during competition in a 50 m pool, (2) to determine if wall contact times are related to swim speed and (3) to compare the turn variables of a European Champion with other swimmers. In the first part of the study, we assessed the turns of 22 swimmers ranked in three groups according to 200 m butterfly swim performance (fast group = 121.73 - 3.03 s, intermediate group = 126.25 - 0.55 s, slow group = 129.24 - 2.30 s). Two turn times were recorded: the first before the turn (i.e. the time it takes the swimmer's head to reach the wall from 7.5 m away) and the second after the turn (i.e. the time from the wall to the point at which the swimmer's head passes 7.5 m away). The third turn was performed significantly faster by the fast group than by the slow group, both before ( P ? 0.01) and after ( P ? 0.02) the turn. In the second part of the study, objectives (2) and (3) were evaluated among 15 swimmers based on a specific protocol. Three cameras (50 Hz) simultaneously recorded the turn; these were placed above the water 10 m before the wall, 5 m before and just above the wall. Longer contact times of the feet on the wall were associated with a faster push-off speed ( P ? 0.02). The European Champion achieved an improved contact time while performing a rapid pull-out speed. 相似文献
12.
The aims of this study were (1) to evaluate the different turn phases of 200 m butterfly during competition in a 50 m pool, (2) to determine if wall contact times are related to swim speed and (3) to compare the turn variables of a European Champion with other swimmers. In the first part of the study, we assessed the turns of 22 swimmers ranked in three groups according to 200 m butterfly swim performance (fast group = 121.73+/-3.03 s, intermediate group = 126.25+/-0.55 s, slow group = 129.24+/-2.30 s). Two turn times were recorded: the first before the turn (i.e. the time it takes the swimmer's head to reach the wall from 7.5 m away) and the second after the turn (i.e. the time from the wall to the point at which the swimmer's head passes 7.5 m away). The third turn was performed significantly faster by the fast group than by the slow group, both before (P< 0.01) and after (P< 0.02) the turn. In the second part of the study, objectives (2) and (3) were evaluated among 15 swimmers based on a specific protocol. Three cameras (50 Hz) simultaneously recorded the turn; these were placed above the water 10 m before the wall, 5 m before and just above the wall. Longer contact times of the feet on the wall were associated with a faster push-off speed (P < 0. 02). The European Champion achieved an improved contact time while performing a rapid pull-out speed. 相似文献
13.
Sebastian Fischer Armin Kibele 《Sports biomechanics / International Society of Biomechanics in Sports》2016,15(4):397-408
The aim of this study was to analyse the significance of various biomechanical parameters in swim start performance for the grab and track start techniques. To do so, structural equation models were analysed, incorporating measurements for the take-off phase, flight phase and entry phase. Forty-six elite German swimmers (18 female and 28 male; age: 20.1 ± 4.2 yrs; PB (100 m Freestyle): 53.6 ± 2.9 s) participated in the study. Their swim start performance was examined within a 25-m sprint test. Structural equation modelling was conducted in separate models for the block time, flight time and water time and in a combined model for swim start time. Our main finding was that swim start time is predominantly related to water time and determined to a lesser extent by block time and flight time. We conclude that more emphasis should be given to the water immersion behaviour and the gliding phase when analysing swim start performance. Furthermore, significant differences were found between the grab start and track techniques as regards the biomechanical parameters representing the take-off phase and water phase. 相似文献
14.
Santiago Veiga Andreu Roig Miguel A. Gómez-Ruano 《European Journal of Sport Science》2016,16(8):919-926
The main objectives of the present research were (1) to examine the relationships between the distances travelled underwater during the start and turn segments with swimming race performance at the elite level and (2) to determine if the individualised-distance start and turn parameters affect the overall race performance. The race parameters of the 100 and 200?m events during 2013 World Championships were measured by an innovative image-processing system (InThePool® 2.0). Overall, 100?m race times were largely related to faster start velocities in men's breaststroke and freestyle events. Conversely, overall, 200?m race times were largely related to longer starting distances in the women's butterfly events, to longer turn distances in men's and women's backstroke and women's butterfly events and to shorter turn distances in women's freestyle events. Changes on the start or turn velocities could represent moderate time improvements in most of the 100?m events, whereas modifications on the start or turn distances (especially in the last turn) could provide elite swimmers with time improvements of practical importance on the 200?m events. The evaluation of races by individualised-distance parameters should be provided to elite swimmers in order to decide the most appropriate race segment configuration for each event. 相似文献
15.
Luke Hogarth Carl Payton Peter Van De Vliet Brendan Burkett 《Journal of sports sciences》2020,38(8):839-847
ABSTRACTSwimmers with limb deficiency are a core population within Para Swimming, accordingly this study examined the contribution of limb segments to race performance in these swimmers. Data were obtained for 174 male Para swimmers with limb deficiency. Ensemble partial least squares regression showed accurate predictions when using relative limb segment lengths to estimate Para swimmers’ personal best race performances. The contribution of limb segments to performance in swim events was estimated using these regression models. The analysis found swim stroke and event distance to influence the contributions of limb segments to performance. For freestyle swim events, these changes were primarily due to the increased importance of the hand, and decreased importance of the foot and shank, as the distance of the event increased. When comparing swim strokes, higher importance of the thigh and shank in the 100 m breaststroke compared with other swim strokes confirms the separate SB class. Varied contributions of the hand, upper arm and foot suggest that freestyle could also be separated from backstroke and butterfly events to promote fairer classification. This study shows that swim stroke and event distance influence the activity limitation of Para swimmers with limb deficiency suggesting classification should account for these factors. 相似文献
16.
The processes of talent detection and early development are critical in any sport programme. However, not much is known about the appropriate strategies to be implemented during these processes, and little scientific inquiry has been conducted in this area. The aim of this study was to identify variables of swimming, ball handling and physical ability, as well as game intelligence, which could assist in the selection process of young water-polo players. Twenty-four players aged 14–15 years underwent a battery of tests three times during a 2-year period, before selection to the junior national team. The tests included: freestyle swim for 50, 100, 200 and 400?m, 100-m breast-stroke, 100-m ‘butterfly’ (with breast-stroke leg motion), 50-m dribbling, throwing at the goal, throw for distance in the water, vertical ‘jump’ from the water, and evaluation of game intelligence by two coaches. A comparison of those players eventually selected to the team and those not selected demonstrated that, 2 years before selection, selected players were already superior on most of the swim tasks (with the exception of breast-stroke and 50-m freestyle), as well as dribbling and game intelligence. This superiority was maintained throughout the 2 years. Two-way tabulation revealed that, based on baseline scores, the prediction for 67% of the players was in agreement with the final selection to the junior national team. We recommend that fewer swim events be used in the process of selecting young water-polo players, and that greater emphasis should be placed on evaluation of game intelligence. 相似文献
17.
Samuel W. Oxford Rob S. James Michael J. Price Carl J. Payton Michael J. Duncan 《Journal of sports sciences》2017,35(16):1658-1665
The purpose of this study was to compare arm–leg coordination and kinematics during 100 m breaststroke in 26 (8 female; 18 male) specialist breaststroke swimmers. Laps were recorded using three 50-Hz underwater cameras. Heart rate and blood lactate were measured pre- and post-swim. Arm–leg coordination was defined using coordination phases describing continuity between recovery and propulsive phases of upper and lower limbs: coordination phase 1 (time between end of leg kick and start of the arm pull phases); and coordination phase 2 (time between end of arm pull and start of leg kick phases). Duration of stroke phases, coordination phases, swim velocity, stroke length (SL), stroke rate (SR) and stroke index (SI) were analysed during the last three strokes of each lap that were unaffected by turning or finishing. Significant changes in velocity, SI and SL (P < 0.05) were found between laps. Both sexes showed significant increase (P < 0.05) in heart rate and blood lactate pre- to post-swim. Males had significantly (P < 0.01) faster swim velocities resulting from longer SLs (P = 0.016) with no difference in SR (P = 0.064). Sex differences in kinematic parameters can be explained by anthropometric differences providing males with increased propelling efficiency. 相似文献
18.
目的：通过运动学指标分析,对自行车短距离项目几种力量耐力和速度力量训练方法的专项性和有效性进行对比研究。方法：选择上海自行车队短组3名男子优秀运动员为对象。选择2011年全国比赛8场1km计时赛,以及期间分别进行的8节原地750m和蓝线行进750m训练课进行力量耐力训练方法分析;选择同期进行的12场争先赛200m资格赛,以及12节大坡行进200m和牵引125＋200m训练课进行速度力量训练方法分析。采用德国SRM系统采集运动学指标,分析数据包括各训练比赛中的功率、频率、速度,同时记录运动成绩。结果：（1）原地750m训练的前两个250m分段及总平均功率（Pmean）和平均频率（Cmean）均显著低于1km计时赛;蓝线行进750m各分段Pmean、Cmean和即刻速度均高于原地750m,且总Pmean和Cmean与1km计时赛相比无明显差异。（2）牵引125＋200m训练的两个100m分段的Pmax和Cmean、200m总Cmean和50m分段即刻速度均显著高于大坡行进200m训练和争先资格赛。结论：蓝线20km/h行进出发750m和摩托车牵引125＋200m训练方法可能是更加符合专项要求的自行车短距离专项力量耐力和速度力量训练。 相似文献