体育科学
體育科學
체육과학
China Sport Science
2011年
7期
49~54
,共null页
鲍捷 路秋光 支炜 支启 王国栋 马胜 王国祥
鮑捷 路鞦光 支煒 支啟 王國棟 馬勝 王國祥
포첩 로추광 지위 지계 왕국동 마성 왕국상
场地自行车 加速度 等速运动 表面肌电图
場地自行車 加速度 等速運動 錶麵肌電圖
장지자행차 가속도 등속운동 표면기전도
track cycling; acceleration ; isokinetic exercise ;surface electrom yography
目的:研究1km自行车竞速赛加速度与踝关节肌肉力学特征之间的关系,更好地为自行车局部力量训练提供理论基础。方法:选择6名青少年自行车运动员进行1km场地自行车竞速、等速运动、表面肌电图测试,对实验数据进行相关、主因素及回归分析等统计学处理。结果:1)作Friedman秩次分析不同角度下EPT、FPP、EAP、FAP、EDLM、GM及EDLM/EPT、GM/FPT差异显著(P〈0.05),因子分析得2个主因素;2)AA1与1km成绩,EPT,EAP、FAP及60°/S、90°/S下EDLM显著相关(P〈0.05);3)以AA1为因变量经三步多元回归得到3个自变量,分别是EAP120°/S,EPT120°/s,EPT90°/s。结论:1)第1圈平均加速度与1km成绩、踝关节伸屈肌EPT、EAP、FAP及60°/s、90°/s下伸肌iEMG高度相关;2)自行车运动员踝关节伸屈肌素质可以归纳至两个主要成分,第一是伸肌肌群的提拉作用,第二是伸屈肌肌群平均功率及相互协调作用;3)以踝关节周围肌肉群素质概括首圈加速度,90°/S、120°/s角速度模式下伸肌做功及力矩是重要决定指标,在自行车的训练中应该注重伸肌素质的训练。
目的:研究1km自行車競速賽加速度與踝關節肌肉力學特徵之間的關繫,更好地為自行車跼部力量訓練提供理論基礎。方法:選擇6名青少年自行車運動員進行1km場地自行車競速、等速運動、錶麵肌電圖測試,對實驗數據進行相關、主因素及迴歸分析等統計學處理。結果:1)作Friedman秩次分析不同角度下EPT、FPP、EAP、FAP、EDLM、GM及EDLM/EPT、GM/FPT差異顯著(P〈0.05),因子分析得2箇主因素;2)AA1與1km成績,EPT,EAP、FAP及60°/S、90°/S下EDLM顯著相關(P〈0.05);3)以AA1為因變量經三步多元迴歸得到3箇自變量,分彆是EAP120°/S,EPT120°/s,EPT90°/s。結論:1)第1圈平均加速度與1km成績、踝關節伸屈肌EPT、EAP、FAP及60°/s、90°/s下伸肌iEMG高度相關;2)自行車運動員踝關節伸屈肌素質可以歸納至兩箇主要成分,第一是伸肌肌群的提拉作用,第二是伸屈肌肌群平均功率及相互協調作用;3)以踝關節週圍肌肉群素質概括首圈加速度,90°/S、120°/s角速度模式下伸肌做功及力矩是重要決定指標,在自行車的訓練中應該註重伸肌素質的訓練。
목적:연구1km자행차경속새가속도여과관절기육역학특정지간적관계,경호지위자행차국부역량훈련제공이론기출。방법:선택6명청소년자행차운동원진행1km장지자행차경속、등속운동、표면기전도측시,대실험수거진행상관、주인소급회귀분석등통계학처리。결과:1)작Friedman질차분석불동각도하EPT、FPP、EAP、FAP、EDLM、GM급EDLM/EPT、GM/FPT차이현저(P〈0.05),인자분석득2개주인소;2)AA1여1km성적,EPT,EAP、FAP급60°/S、90°/S하EDLM현저상관(P〈0.05);3)이AA1위인변량경삼보다원회귀득도3개자변량,분별시EAP120°/S,EPT120°/s,EPT90°/s。결론:1)제1권평균가속도여1km성적、과관절신굴기EPT、EAP、FAP급60°/s、90°/s하신기iEMG고도상관;2)자행차운동원과관절신굴기소질가이귀납지량개주요성분,제일시신기기군적제랍작용,제이시신굴기기군평균공솔급상호협조작용;3)이과관절주위기육군소질개괄수권가속도,90°/S、120°/s각속도모식하신기주공급력구시중요결정지표,재자행차적훈련중응해주중신기소질적훈련。
Objective:The relationship between acceleration of 1 km cycling track and ankle kinetic character was analyzed in order to provide the scientific base for cycling strength training. Methods : According to study design, 6 young highly trained cyclists performed 1 km time trial (TT) on a velodrome track, and their ankle joint strength and sEMG were tested respectively. Result: 1) There was significant difference between each angle of EPT, FPP, EAP, FAP, EDLM,GM,EDLM/EPT, GM/FPT with Friedman two-way Anova (P〈0. 05), and two components were gained from principal factor analysis; 2)AA1 was high correlation with 1 km TT, EPT, EAP, FAP, EDLM60°/s, EDLM90°/s(P〈0.05) ; 3) Three independent variables (EAP120°/s, EPT120°/s, EPT90°/s) were gained from multiple stepwise regression analysis by regarding AA1 as a variable. Conclusions.. 1) 1st acceleration of 1 km cycling trace had high relationship with EPT, EAP, FAP and iEMG60°/s, iEMG90°/s of ankle joint extensor muscle; 2) Two Components of ankle joint muscle diathesis were found, the first was strain effect of ankle extensor muscle, the second was EAP of ankle muscle and the harmony of extensor and flexor muscle; 3) EPT and EAP of 90°/s, 120°/s angular velocity were important indexes to describe the 1st acceleration of 1 km cycling trace. The ankle joint extensor muscle training of cycling athletes should be paid more attention.