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振动刺激力量训练对踝关节肌群肌力影响的实验研究 总被引：6，自引：0，他引：6
采用振动台力量训练法(VSM)和传统力量训练方法(TM)对上海体育学院体育系跳远专修的学生进行下肢肌肉力量训练,振动台的刺激频率为20～25HZ,加速度为15～20m/s2经过八周系统的力量训练,利用测力台和Biodex分别对下肢最大蹬伸力量和踝关节屈伸肌的等速力量进行测试,实验结果表明VSM比TM训练法能更有效地提高屈伸肌群的快慢速肌力,使屈伸肌群的快慢速肌力得到同时协调的发展.但实验结果还表明VSM对肌肉耐力的作用效果不是很理想,所以在采用VSM力量训练方法的时候要加强对肌肉耐力的训练. 相似文献
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采用振动台力量训练法 (VSM )和传统力量训练方法 (TM )对上海体育学院体育系跳远专修学生进行下肢肌肉力量训练 ,振动台的刺激频率为 2 0～ 2 5Hz,加速度为 15～ 2 0m/s2 ,经过8周系统的力量训练 ,利用B在 6 0°/s和 30 0°/s测试条件下对髋关节屈伸肌的等速力量进行研究。结果表明 ,VSM比TM训练法能更有效地提高屈伸肌群的快慢速肌力 ,使屈伸肌群的快慢速肌力得到同时协调的发展。但VSM法对肌肉耐力的作用效果不是很理想 ,所以在采用VSM力量训练方法的时候要加强对肌肉耐力的训练 相似文献
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《湖北体育科技》2019,(9):807-810
目的为了研究增强股后肌群力量训练对初中生立定跳远的影响。方法采用实验法对72名初中生进行测验,采取两种训练方法,即用下肢力量训练与下肢力量训练+专门的股后肌群训练。结果两种训练方法均可提高跳远成绩,对照组、实验组干预前后成绩相比有显著性差异;实验组在增加专门的股后肌群训练的干预后,立定跳远成绩明显优于对照组,干预后的对照组成绩(188.75±24.09cm)与实验组成绩(205.33±26.38cm)存在显著性差异(p=0.007,t=-2.785);从不同性别分析,男、女生在干预后的跳远成绩都有明显提高,男生干预后的对照组(204.00±19.97cm)与实验组(224.50±17.31cm)之间有显著性差异(p=0.001,t=-3.468),女生干预后的对照组(169.69±12.31cm)与实验组(181.38±11.90cm)之间存在统计学上差异(p=0.010,t=-2.730),男生在第4周之后实验组与对照组有明显性差异,女生则在第12周之后实验组与对照组之间出现显著性差异。结论下肢力量训练可以提高跳远成绩,但增加专门的股后肌群力量训练对提高立定跳远的成绩效果更佳。 相似文献
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举重运动训练方法的演进,经历了许多阶段。训练方法的不断进步,是推动运动成绩不断提高的最重要因素之一。这是因为举重运动是用一定技术表现人体力量(包括速度)的项目,而力量提高是建立在身体对刺激的适应原理之上的。所以不同的训练方法能产生不同的效果。例如,人们早就发现为了发达肌肉最好每组用8—12RM(RM 为用一定重量能举起的最多次数),同时认为发达肌肉的最好方法也就是提高力量的最好方法。但是随着时间推移,训练方法的进步,训练的强度越来越高,而且认识到发达肌肉和增强力量(特别是速度力量、爆发力量)并不是完全一致的。当今所谓训练方法问题主要是指训练负荷量的大小,强度大小,练习项目的种类和数量,肌肉活动(收缩)的方式, 相似文献
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髌骨在功能上为股四头肌的种籽骨,本身没有骨膜,它的功能主要是保护与稳定膝关节,传递股四头肌的力量,增加股四头肌腱的作用力矩及连带作用。在运动中损伤的发生率较高,在跳跃、投掷等运动中损伤较多。 一、髌骨的生理功能 (一)保护股骨关节面; (二)传递股四头肌的力量; (二)增加股四头肌的作用力矩以加强 相似文献
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不同训练方法对发展弹跳力的影响 总被引：2，自引：0，他引：2
发展弹跳力的关键在于训练中如何提高最大肌力和动作速度这两个方面。青少年肌肉力量相对薄弱,但肌肉的收缩速度快,加之灵敏、协调性的发展已进入高峰期,若在这一年龄阶段采用有效的训练方法,可促进中学生弹跳力的有效增长。 长期以来,人们一直都在不断摸索提高弹跳力的有效训练方法,并通过各种不同的实验对比来检验各种训练方法的有效性。这些训练方法大致可归类为以下三种：静力性力量训练、动力性力量训练和超等长力量训练方法 (跳深练习 )。据国内外已有的实验报告指出：经过一段时间的训练之后,这几种训练方法对发展弹跳力… 相似文献
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本文通过对体疗中常用的七种不同的股四头肌肌力练习的肌电图分析，得出这七种练习在发展股四头肌内侧头肌力方面的优劣，同时得到练习过程中肌力随关节角度的变化情况。指出采用动、静力结合的力量练习方法，是发展股内侧肌肌力的理想康复手段。对于股直肌、股外肌的力量康复，也有一定的指导意义。 相似文献
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浅谈摔跤运动员的力量训练方法 总被引：2，自引：0，他引：2
本从：1)爆发力的训练方法；2)最大力量的训练方法；3)速度力量的训练方法；4)力量耐力的训练方法；5)力量训练中应注意的几个问题；五个方面对摔跤运动员力量训练方法进行了简要的归纳和总结。 相似文献
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排球运动员下肢肌力与肌电特征的相关研究 总被引：2，自引：0，他引：2
采用实验法,通过美国产艾力尔智能化力量诊断与训练系统(ACES)和芬兰产Megawin6000肌电仪相结合,探索排球运动员下肢膝关节等速运动状态下肌力、肌电特征以及二者的相互关系,为应用积分肌电评价排球运动员专项力量素质奠定基础,为设计专项力量训练方法、预防运动损伤提供科学依据。研究结果表明排球运动员膝关节等速肌力特征符合Hill方程和力速曲线关系;膝关节等速测试运动期间采集到的股四头肌肌电信号可以客观地评价积分肌电与肌力指标之间的关系,指导专项力量训练实践。 相似文献
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振动力量训练对肌肉力量的影响研究 总被引：9，自引：0，他引：9
利用自制的振动台对实验组进行全身振动刺激力量训练,振动刺激的频率范围为20-25HZ,振动的加速度为15-20m/s2。通过对振动刺激力量法和传统力量训练方法的比较研究,发现附加全身振动刺激的实验组下肢三大关节屈伸肌肌群的一般和快速力量在实验后明显提高,其增长幅度明显大于对照组,组间比较具有显著性差异。表明肌肉动态训练中附加全身振动刺激能有效地提高肌肉力量训练的效果。 相似文献
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目的：通过比较模拟低氧训练组与常氧训练组的白细胞及其亚群细胞指标的变化,探讨模拟低氧训练对白细胞免疫功能的影响。方法：将SD大鼠分成16小组,常氧与低氧各8组。检测5周中强度训练、6周高强度训练大鼠白细胞及其亚群细胞值。结果表明：单纯低氧刺激可以增加白细胞数量。低氧中强度训练对白细胞总数影响不大,这可能与训练强度和时间有关,并不能完全说明其免疫应答特征相同。低氧下进行高强度和极限强度训练都会加大机体被病菌侵入的机会,从而对白细胞免疫功能产生不利影响。 相似文献
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提高运动员快速力量的穴位电刺激实验研究 总被引：10，自引：5，他引：5
采用穴位电刺激的方法,探讨其对提高运动员快速力量的效果。结果显示,用穴位电刺激法能提高骨骼肌的峰力矩、功率,及膝关节屈伸肌肉的快速力量,故可作为提高运动员快速力量的有效方法。其中,不同穴位电刺激的效果有明显差异,综合刺激效果最好。 相似文献
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运用实验法，比较电针刺激肢体穴位和综合穴位的不同效果。结果显示：综合穴位刺激相对于肢体穴位，400m跑后血乳酸、肌力、30m跑、立定跳远等指标均具有显著性差异；说明电针刺激运动员综合穴位消除肌肉急性疲劳的效果较好。 相似文献
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电刺激方法对肌肉力量、柔韧性及综合效果研究现状分析 总被引：2，自引：1，他引：1
电刺激方法已成为现代运动训练的重要手段之一。但电刺激在发展肌肉力量的同时对柔韧性的影响还有待进一步研究。对电刺激在发展肌肉力量及电刺激对柔韧性的影响和柔韧性的训练方法等方面作了比较全面的综述,以期为进一步的研究提供参考。 相似文献
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Post-exercise cryotherapy treatments are typically short duration interventions. This study examined the efficacy of prolonged cooling using phase change material (PCM) on strength loss and pain after eccentric exercise. Eight adults performed 120 bilateral eccentric quadriceps contractions (90% MVC). Immediately afterwards, frozen PCM packs (15°C) were placed over the quadriceps, with room temperature PCM packs on the contralateral quadriceps. Skin temperature was recorded continually (6 h PCM application). Isometric quadriceps strength and soreness were assessed before, 24, 48, 72 and 96 h post-exercise. The protocol was repeated 5 months later, with room temperature PCM applied to both legs. There were three treatments: legs treated with 15°C PCM packs (direct cooling), legs treated with room temperature PCM packs contralateral to the 15°C PCM packs (systemic cooling), and legs tested 5 months later both treated with room temperature PCM packs (control). Skin temperature was 9°C–10°C lower with direct cooling versus systemic cooling and control (P < 0.01). Strength loss and soreness were less (P < 0.05) with direct cooling versus systemic cooling and control (strength 101%, 94%, 93%, respectively; pain 1.0, 2.3, 2.7, respectively). Six hours of PCM cooling was well tolerated and reduced strength loss and pain after damaging exercise. 相似文献
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Jonathan P Folland Kate Hawker Ben Leach Tom Little David A Jones 《Journal of sports sciences》2013,31(8):817-824
Strength training with isometric contractions produces large but highly angle-specific adaptations. To contrast the contractile mode of isometric versus dynamic training, but diminish the strong angle specificity effect, we compared the strength gains produced by isometric training at four joint angles with conventional dynamic training. Thirty-three recreationally active healthy males aged 18?–?30 years completed 9 weeks of strength training of the quadriceps muscle group three times per week. An intra-individual design was adopted: one leg performed purely isometric training at each of four joint angles (isometrically trained leg); the other leg performed conventional dynamic training, lifting and lowering (dynamically trained leg). Both legs trained at similar relative loads for the same duration. The quadriceps strength of each leg was measured isometrically (at four angles) and isokinetically (at three velocities) pre and post training. After 9 weeks of training, the increase in isokinetic strength was similar in both legs (pooled data from three velocities: dynamically trained leg, 10.7%; isometrically trained leg, 10.5%). Isometric strength increases were significantly greater for the isometrically trained leg (pooled data from four angles: dynamically trained leg, 13.1%; isometrically trained leg, 18.0%). This may have been due to the greater absolute torque involved with isometric training or a residual angle specificity effect despite the isometric training being divided over four angles. 相似文献
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穴位和非穴位刺激对大鼠骨骼肌能量代谢的影响 总被引：1，自引：0，他引：1
采用实验法,将大鼠随机分成非穴位刺激组、穴位刺激组(刺激"足三里"、"承山"、"大椎"、"命门"穴位)进行电针刺激,观察大鼠骨骼肌ATP酶、乳酸脱氢酶(LDH)和磷酸肌酸激酶(CPK)活性的变化。结果表明:穴位电刺激使大鼠骨骼肌ATPase、LDH和CPK活性比非穴位刺激组显著升高(P<0 01),并对协调发展磷酸肌酸(CP)供能,糖酵解供能能力有明显效果,说明了穴位电刺激能改善大鼠骨骼肌的能量代谢。 相似文献
19.
Strength training with isometric contractions produces large but highly angle-specific adaptations. To contrast the contractile mode of isometric versus dynamic training, but diminish the strong angle specificity effect, we compared the strength gains produced by isometric training at four joint angles with conventional dynamic training. Thirty-three recreationally active healthy males aged 18 - 30 years completed 9 weeks of strength training of the quadriceps muscle group three times per week. An intra-individual design was adopted: one leg performed purely isometric training at each of four joint angles (isometrically trained leg); the other leg performed conventional dynamic training, lifting and lowering (dynamically trained leg). Both legs trained at similar relative loads for the same duration. The quadriceps strength of each leg was measured isometrically (at four angles) and isokinetically (at three velocities) pre and post training. After 9 weeks of training, the increase in isokinetic strength was similar in both legs (pooled data from three velocities: dynamically trained leg, 10.7%; isometrically trained leg, 10.5%). Isometric strength increases were significantly greater for the isometrically trained leg (pooled data from four angles: dynamically trained leg, 13.1%; isometrically trained leg, 18.0%). This may have been due to the greater absolute torque involved with isometric training or a residual angle specificity effect despite the isometric training being divided over four angles. 相似文献
20.
Robert Eberle Dieter Heinrich Peter Kaps Michael Oberguggenberger Werner Nachbauer 《Journal of sports sciences》2017,35(12):1125-1133
A common anterior cruciate ligament (ACL) injury situation in alpine ski racing is landing back-weighted after a jump. Simulated back-weighted landing situations showed higher ACL-injury risk for increasing ski boot rear stiffness (SBRS) without considering muscles. It is well known that muscle forces affect ACL tensile forces during landing. The purpose of this study is to investigate the effect of different SBRS on the maximal ACL tensile forces during injury prone landings considering muscle forces by a two-dimensional musculoskeletal simulation model. Injury prone situations for ACL-injuries were generated by the musculoskeletal simulation model using measured kinematics of a non-injury situation and the method of Monte Carlo simulation. Subsequently, the SBRS was varied for injury prone landings. The maximal ACL tensile forces and contributing factors to the ACL forces were compared for the different SBRS. In the injury prone landings the maximal ACL tensile forces increased with increasing SBRS. It was found that the higher maximal ACL force was caused by higher forces acting on the tibia by the boot and by higher quadriceps muscle forces both due to the higher SBRS. Practical experience suggested that the reduction of SBRS is not accepted by ski racers due to performance reasons. Thus, preventive measures may concentrate on the reduction of the quadriceps muscle force during impact. 相似文献