共查询到20条相似文献，搜索用时 218 毫秒
1.
我国优秀女子皮划艇激流运动员卧拉特点的测试分析 总被引：1，自引：0，他引：1
通过研制的力量素质测试设备,根据皮划艇激流运动主要肌肉用力特点,对国家皮划艇激流队优秀女队员进行了不同重量下的卧拉最大功率的测试。通过测试结果分析,有针对性地指导运动员进行力量素质训练,提高了力量训练的科学性。 相似文献
2.
我国优秀男子帆板运动员卧拉训练测试与评价的研究 总被引：1，自引：1，他引：0
探索我国优秀男子帆板运动员在专项力量训练中的评价指标和相关因素,对帆板项目的上肢向心力量训练及其监控与评 价问题进行了分析研究,为我国帆板运动员的专项力量训练提供科学依据.帆板力量训练应该以提高功率为核心,而提高功率的 关键是提高动作速度.最大上拉速度可以作为评价卧拉峰值功率的敏感指标.较大卧拉重量对于提高帆板运动成绩没有显著贡 献,建议减少在卧拉训练时大重量杠铃的训练,加强中小重量的力量速度和力量耐力训练. 相似文献
3.
举重是非周期性体能、速度、力量项目，要求运动员在试举重量时，在最短时间内得将全身力量全部使用出来。因此，发展最大力量是举重运动员最重要的运动素质。 相似文献
4.
田径是比运动员全面身体素质及个人运动能力的运动，对力量素质和速度素质要求甚高。对短跑、跳跃及投掷类项目而言，负重力量练习在平时训练中占有很大比例，而动作速度和负荷重量构成力量练习的两大主要因素。如何选择负荷重量，根据重量确定完成次数和完成速度是负重力量训练中非常重要的环节。 1．动作速度和负荷重量的关系在负重力量练习过程中。动作速度和负荷重量成负相关关系。换言之，就是当负荷重量增加时，练习的速度必然会降低；反之，当练习的负荷重量减少时，练习的速度就会随之提高。完成练习次数和负荷重量也称负相… 相似文献
5.
随着竞技水平的提高,力量素质训练,已是当前训练过程中一个不可忽视的重要环节。力量素质包括最大力量（又称绝对力量）、相对力量、速度力量和力量耐力。各种力量素质的训练,通常采用负荷重量的练习法。在负荷重量的练习时,要从训练任务出发,安排好负荷重量（即强度）、练习的重复次数和组数,以及次间和组间的间歇时间。一、绝对力量发展绝对力量基本是采用本人最大力量的60％－75％的负荷重量,重复次数在8－12次,组数以不降低重复次数为主,组间歇时间2－5分钟,但基础训练应从45％的负荷重量开始,在基础训练的同时,我们的教练… 相似文献
6.
7.
整体动作最大力量素质训练负荷的理论研究 总被引：1，自引：0，他引：1
本文运用三维测力台，通过对排球运动员零至最大荷重杠铃负重半蹲练习肌肉收缩作用力的测试，揭示了整体动作肌肉收缩力与荷重的定量关系，为提高最大力量素质确定最佳负荷重量，提供了科学的理论依据。 相似文献
8.
众所周知,影响举重运动员成绩的主要因素是力量,力量是举重的专项素质,因此,举重的专项身体训练也就是力量训练。举重比赛比的是谁举得最重,训练中运动员就要经常举起极限的重量。但举得重,时间就不能长,因此举重的专项力量训练有它明显的特点。本文就举重运动员专... 相似文献
9.
力量素质是各项身体素质的基础,尤其发展最大力量不仅能够增强肌肉的质量和身体的硬度,还能提高心血管机能和血睾酮的分泌水平。更为重要的是,最大力量练习可以提高肌肉和血管的弹性,防止运动损伤的发生。本文对上肢推和拉、下肢推和拉的各种动作模式练习方法进行了详细阐述,以期能够帮助读者更好地发展最大力量。 相似文献
10.
11.
The purpose of this study was to determine the effects of the simultaneous use of pyridoxine-alpha-ketoglutarate (PAK) and sodium bicarbonate (NaHCO3) on short-term maximal exercise capacity in eight well-trained male cyclists. The study consisted of the determination of maximal power output and the administration of various combinations of placebos, PAK and NaHCO3, followed by a short-term maximal exercise test. To determine maximal power output (power(max)), the subjects performed a continuous, incremental test on a Monark bicycle ergometer to symptom limited maximum (test 1). To determine the effects of NaHCO3 and PAK on short-term maximal exercise performance, the subjects were administered either placebo (PLA), PAK and sodium bicarbonate (P/B), PAK and placebo (PAK), or sodium bicarbonate and placebo (BIC) prior to performing short-term maximal exercise (test 2). Oral tablets of NaHCO3 and PAK were given in doses of 200 mg kg-1 and 50 mg kg-1 respectively. The subjects pedalled at the power output corresponding to 100% of their VO2 max at 70 rev min-1 until voluntary cessation or until they were unable to maintain pedal revolution rate. Venous blood samples were drawn at rest (RES), cessation of exercise (CES) and after 2 min of recovery (REC) and analysed for lactate, pH and bicarbonate ion concentration. The subjects attained an average maximum power output of 377 +/- 20 W during the graded maximal pre-test (test 1). There were no significant differences between treatments in the ability to sustain power(max) during test 2. During test 2, the subjects were able to sustain power(max) for 7.6 +/- 4.3 min with P/B, 6.7 +/- 2.9 min with PAK, 7.3 +/- 4.9 min with BIC and 6.9 +/- 2.7 min with placebo (mean +/- S.E.). Blood lactate (BLa) was significantly elevated at cessation of exercise and remained elevated during recovery, but there were no significant differences between treatments. Bicarbonate fell significantly during exercise and recovery in each treatment. At rest, bicarbonate levels were significantly higher in both the P/B and BIC than in the PAK or PLA treatments. Pooled data from the P/B and BIC treatments demonstrated a significant increase in pH at rest and end of exercise when compared to PLA treatment. These data suggest that sodium bicarbonate rather than PAK was responsible for this increase. In summary, our data suggest that in the dosages used in this study, administration of sodium bicarbonate or PAK, alone or in combination, is ineffective in increasing short-term maximal exercise capacity. 相似文献
12.
G. S. Krahenbuhl R. P. Pangrazi E. A. Chomokos 《Research quarterly for exercise and sport》2013,84(3):413-421
Two groups of 8-year-old males were studied. One group (good runners) consisted of subjects who placed above the median on 5-, 7-, and 9-minute runs; a second group (poor runners) represented children who placed below the median on the same three runs. The aerobic responses of these subjects were determined for submaximal treadmill running at speeds of 134, 154, and 174m· min–1. Maximal aerobic power and maximal running speed were also measured. At common submaximal speeds the good runners used smaller proportions of both their maximal running speed and their maximal aerobic power. Estimations of the aerobic demands of a 9-minute run suggest that in 8-year-old males better distance runners (a) possess a faster maximal sprint speed, yet perform distance runs at higher percentage of their maximal speed; (b) require more O2 to sustain this pace; and (c) perform at a higher percentage of their maximal aerobic power than do distance runners of poorer ability. 相似文献
13.
肌肉疲劳通常是指肌肉运动系统最大作功能力或者最大收缩能力的暂时下降,表面肌电图信号可以在一定程度上反映肌肉收缩功能的变化,其检测具有非损伤性、实际性、多靶点测量等优点.通过文献综述法简要总结了运动导致肌肉疲劳的表面肌电图特征,介绍了表面肌电图主要测量指标及其影响因素. 相似文献
14.
表面肌电信号的检测是一种无创电检测方法,它的检测分析对临床诊断及康复医学,运动医学等具有重要意义。肌肉疲劳产生过程中,肌电图的振幅和频谱指标均会产生相应变化,肌肉疲劳通常是指肌肉运动系统最大做功能力或最大收缩能力暂时下降。SEMG信号可以在一定程度上反映肌肉收缩功能的变化,在运动性肌肉疲劳研究中将发挥重要作用。 相似文献
15.
Acute and residual effects of vibratory stimulation on explosive strength in elite and amateur athletes. 总被引：13，自引：0，他引：13
Fourteen elite and 14 amateur athletes were subjected to vibratory stimulation during bilateral biceps curl exercises of explosive strength exertion. The athletes performed two separate series of three sets of exercises in random order. The second set of one series was administered with superimposed vibration of 44 Hz and an acceleration of about 30 m x s(-2) transmitted through the two-arms handle to the arm muscles. The mechanical power of each repetition was measured by the 'Power Teach' instrument. The maximal and mean power values for each set were automatically recorded and shown on the screen. The acute effect was evaluated as the difference between the mean and peak power output in the second (with vibratory stimulation) and first (without vibratory stimulation) sets. Similarly, the residual effect was taken to be the difference between the power values of the third (after vibratory stimulation) and the first (before vibratory stimulation) sets. The results were subjected to a repeated-measures analysis of variance with group as a between-participants factor. The results showed that exercise mode (with vs without vibratory stimulation) resulted in a significant immediate effect for mean power and for maximal power. The factor group (elite vs amateurs) resulted in a significant effect for maximal power only. The increase in explosive strength exertion attributed to vibratory stimulation was 30.1 and 29.8 W (10.4% and 10.2%) for maximal and mean power respectively in the elite group, and 20.0 and 25.9 W (7.9% and 10.7%) respectively in the amateur athletes. Vibratory stimulation resulted in an insignificant residual effect. 相似文献
16.
Relative importance of physiological, anthropometric, and skill qualities to team selection in professional rugby league 总被引：1，自引：1，他引：0
This study investigated the relative importance of physiological, anthropometric, and skill qualities to team selection in professional rugby league. Eighty-six high performance rugby league players underwent measurements of anthropometric (height, body mass, sum of seven skinfolds), physiological (speed, change of direction speed, lower body muscular power, repeated-sprint ability, prolonged high-intensity intermittent running ability, and maximal aerobic power), technical skill (tackling proficiency, draw and pass proficiency), and perceptual skill (reactive agility, pattern recall, pattern prediction) qualities. A linear discriminant analysis was also conducted comparing those players successful in gaining selection into the professional National Rugby League team with those not selected to determine which, if any, of these qualities could predict selection. Players selected to play in the first National Rugby League game of the season were older, more experienced, leaner, had faster 10 m and 40 m sprint times, and superior vertical jump performances, maximal aerobic power, tackling proficiency and dual-task draw and pass ability than non-selected players. Skinfold thickness and dual-task draw and pass proficiency were the only variables that contributed significantly (P < 0.05) to the discriminant analysis of selected and non-selected players. These findings suggest that selected physiological, anthropometric, and skill qualities may influence team selection in professional rugby league. 相似文献
17.
In this study, we examined the relationship between anthropometric, strength and power characteristics of rugby forwards, their body position when scrummaging, and their ability to apply force when scrummaging. Force applied to an instrumented scrum machine was measured for 56 players, both individually and as scrum packs. Measurements of body position for individuals were made by digitizing videotape records of the trials. Forty players subsequently had their anthropometry assessed and completed several strength and power tests. Body mass, each component of somatotype, maximal anaerobic power developed on a cycle ergometer, and isokinetic knee extension strength correlated significantly with individual scrummaging force. A regression model (P?0.001) including body mass, mesomorphy, maximal anaerobic power and hip angle while in the scrummaging position accounted for 45% of the variance in individual scrummaging force. The packs that produced the largest scrummaging forces were, in general, characterized by a greater pack force to sum of individual force ratio than the packs producing lower forces. Our results emphasize the need for a scrum pack to develop technique and coordination as a unit to maximize scrummaging force. 相似文献
18.
19.
Abstract This study investigated the relative importance of physiological, anthropometric, and skill qualities to team selection in professional rugby league. Eighty-six high performance rugby league players underwent measurements of anthropometric (height, body mass, sum of seven skinfolds), physiological (speed, change of direction speed, lower body muscular power, repeated-sprint ability, prolonged high-intensity intermittent running ability, and maximal aerobic power), technical skill (tackling proficiency, draw and pass proficiency), and perceptual skill (reactive agility, pattern recall, pattern prediction) qualities. A linear discriminant analysis was also conducted comparing those players successful in gaining selection into the professional National Rugby League team with those not selected to determine which, if any, of these qualities could predict selection. Players selected to play in the first National Rugby League game of the season were older, more experienced, leaner, had faster 10m and 40m sprint times, and superior vertical jump performances, maximal aerobic power, tackling proficiency and dual-task draw and pass ability than non-selected players. Skinfold thickness and dual-task draw and pass proficiency were the only variables that contributed significantly (P < 0.05) to the discriminant analysis of selected and non-selected players. These findings suggest that selected physiological, anthropometric, and skill qualities may influence team selection in professional rugby league. 相似文献
20.
In this study, we examined the relationship between anthropometric, strength and power characteristics of rugby forwards, their body position when scrummaging, and their ability to apply force when scrummaging. Force applied to an instrumented scrum machine was measured for 56 players, both individually and as scrum packs. Measurements of body position for individuals were made by digitizing videotape records of the trials. Forty players subsequently had their anthropometry assessed and completed several strength and power tests. Body mass, each component of somatotype, maximal anaerobic power developed on a cycle ergometer, and isokinetic knee extension strength correlated significantly with individual scrummaging force. A regression model (P < 0.001) including body mass, mesomorphy, maximal anaerobic power and hip angle while in the scrummaging position accounted for 45% of the variance in individual scrummaging force. The packs that produced the largest scrummaging forces were, in general, characterized by a greater pack force to sum of individual force ratio than the packs producing lower forces. Our results emphasize the need for a scrum pack to develop technique and coordination as a unit to maximize scrummaging force. 相似文献