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中、外优秀男子20 km竞走运动员技术动作对比分析
运动生物力学 20 km竞走 优秀运动员
2015/12/10
运用高速摄像与影片解析等方法，对2014年国际田径联合会竞走世界杯赛男子20 km中、外参赛优秀运动员的技术动作进行了分析诊断，研究发现：1)中国男子运动员重心移动速度偏慢，表现在步频偏小、大腿夹角偏小，说明步幅还有待提高。2)中国男子运动员头顶点上、下起伏较大，腾空时间较长，被判罚犯规的可能性较大。3)中国男子竞走运动员踝关节蹬伸幅度偏小，上、下肢摆动角度左右不平衡，上、下肢摆动速度偏慢。建议：...
Performance during a 20-km cycling time-trial after caffeine ingestion
Ergogenic aid Sports performance Perceived exertion
2015/7/29
In a double-blind placebo-controlled crossover study, 13 male cyclists (26 ± 10 y, 71 ± 9 kg, 176 ± 6 cm) were randomized into 2 groups and received caffeine (CAF) ...
Biochemical and Hematological Changes Following the 120-Km Open-Water Marathon Swim
Marathon swim ultraendurance exercise
2015/5/25
Data on physiological effects and potential risks of a
ultraendurance swimming are scarce. This report presents the
unique case of a 61-year old athlete who completed a non-stop
open-water 120-k...
High-Dose Inhaled Salbutamol Does Not Improve 10-km Cycling Time Trial Performance
INHALED β2-AGONISTS EXERCISE-INDUCED BRONCHOCONSTRICTION DOPING CONTROL ERGOGENIC AIDS ATHLETE CARE
2017/4/20
Background: β2-agonists are on the World Anti-Doping Agency’s list of prohibited substances; however, athletes are allowed to treat symptoms of exercise-induced bronchoconstriction with a maximal dail...
Central and Peripheral Fatigue in Male Cyclists after 4-, 20-, and 40-km Time Trials
FATIGUE LOCOMOTOR EXERCISE SELF-PACED NEUROMUSCULAR TRANSCRANIAL MAGNETIC STIMULATION
2017/4/14
Purpose: Few studies have assessed neuromuscular fatigue after self-paced locomotor exercise; moreover, none have assessed the degree of supraspinal fatigue. This study assessed central and peripheral...
Effects of Training-Induced Fatigue on Pacing Patterns in 40-km Cycling Time Trials
PACING TEMPLATE ENDURANCE TRAINING PERFORMANCE EXHAUSTION
2017/4/14
Introduction: In some endurance sports, athletes complete several competitions within a short period, resulting in accumulated fatigue. It is unclear whether fatigued athletes choose the same pacing p...
Fluid ingestion strategies of competitive cyclists during 40 km time trial competition
competitive cyclists trial competition
2015/4/3
Loss of fluid during prolonged exercise has been purported to be a cause of fatigue (Below et al., 1995; Walsh
et al., 1994, for example). A plethora of information regarding ‘optimal’ fluid replace...
从2009年全国竞走大奖赛透视我国男子50 km竞走项目的竞技现状
竞走 速度分配 体能
2012/10/18
运用文献资料暍数理统计暍调查法等方法棳以参加棽棸棸椆年全国竞走大奖赛的男子椀棸旊旐竞走项目的棿棽名运动员为研究对象棳从运动员的地域分布特征暍竞技年龄特征暍速度分配与成绩特征暍运动员的技术特征等方面分析其竞技现状暎研究表明椇我国椀棸旊旐竞走运动员人数区域分布不均匀棳主要分布在云南暍山东暍辽宁等省份椈运动员的竞技年龄呈现暟年轻化暠的趋势椈运动员的速度曲线变化幅度较大椈运动成绩与北京奥运会前椄名的成绩相...