北京体育大学学报
北京體育大學學報
북경체육대학학보
Journal of Beijing University of Physical Education
2012年
2期
50~53
,共null页
振动放松 即时效果 骨骼肌 运动性疲劳
振動放鬆 即時效果 骨骼肌 運動性疲勞
진동방송 즉시효과 골격기 운동성피로
vibration massage; acute effects; exercise-induced skeletal muscle fatigue
通过握力和表面肌电检测骨骼肌力量练习前后以及振动放松后的变化,评价振动放松促进骨骼肌运动性疲劳恢复的即时效果。8名健康男性青年进行上肢腕关节反复屈伸至无法继续完成动作,造成前臂运动性疲劳直至力竭。振动组采用Power Plate振动训练器进行放松,对照组自然恢复。振动放松方法为频率30 Hz,振幅2 mm,持续放松3 min,力量练习前后及振动放松后测试握力和掌长肌表面肌电,分析比较肌肉力量和表面肌电积分值（iEMG）、平均功率频率（MPF）和中值频率（MF）等变化。结果显示,力量练习后握力均明显下降（P〈0.01）,同时掌长肌表面肌电iEMG出现明显升高（P〈0.01）,MF和MPF出现明显下降（P〈0.05）。即时振动放松可以使得握力显著恢复（P〈0.01）,掌长肌表面肌电iEMG显著性减小（P〈0.01）,MF,MPF亦有所恢复,但组间无显著性差异（P〉0.05）。因此,本研究得出结论,采用连续3 min,频率为30 Hz,振幅为2 mm的即时振动放松可以使骨骼肌在发生运动性疲劳后电生理特性和力量得到明显恢复,有效缓解骨骼肌运动性疲劳,使骨骼肌力量恢复。
通過握力和錶麵肌電檢測骨骼肌力量練習前後以及振動放鬆後的變化,評價振動放鬆促進骨骼肌運動性疲勞恢複的即時效果。8名健康男性青年進行上肢腕關節反複屈伸至無法繼續完成動作,造成前臂運動性疲勞直至力竭。振動組採用Power Plate振動訓練器進行放鬆,對照組自然恢複。振動放鬆方法為頻率30 Hz,振幅2 mm,持續放鬆3 min,力量練習前後及振動放鬆後測試握力和掌長肌錶麵肌電,分析比較肌肉力量和錶麵肌電積分值（iEMG）、平均功率頻率（MPF）和中值頻率（MF）等變化。結果顯示,力量練習後握力均明顯下降（P〈0.01）,同時掌長肌錶麵肌電iEMG齣現明顯升高（P〈0.01）,MF和MPF齣現明顯下降（P〈0.05）。即時振動放鬆可以使得握力顯著恢複（P〈0.01）,掌長肌錶麵肌電iEMG顯著性減小（P〈0.01）,MF,MPF亦有所恢複,但組間無顯著性差異（P〉0.05）。因此,本研究得齣結論,採用連續3 min,頻率為30 Hz,振幅為2 mm的即時振動放鬆可以使骨骼肌在髮生運動性疲勞後電生理特性和力量得到明顯恢複,有效緩解骨骼肌運動性疲勞,使骨骼肌力量恢複。
통과악력화표면기전검측골격기역량연습전후이급진동방송후적변화,평개진동방송촉진골격기운동성피로회복적즉시효과。8명건강남성청년진행상지완관절반복굴신지무법계속완성동작,조성전비운동성피로직지력갈。진동조채용Power Plate진동훈련기진행방송,대조조자연회복。진동방송방법위빈솔30 Hz,진폭2 mm,지속방송3 min,역량연습전후급진동방송후측시악력화장장기표면기전,분석비교기육역량화표면기전적분치（iEMG）、평균공솔빈솔（MPF）화중치빈솔（MF）등변화。결과현시,역량연습후악력균명현하강（P〈0.01）,동시장장기표면기전iEMG출현명현승고（P〈0.01）,MF화MPF출현명현하강（P〈0.05）。즉시진동방송가이사득악력현저회복（P〈0.01）,장장기표면기전iEMG현저성감소（P〈0.01）,MF,MPF역유소회복,단조간무현저성차이（P〉0.05）。인차,본연구득출결론,채용련속3 min,빈솔위30 Hz,진폭위2 mm적즉시진동방송가이사골격기재발생운동성피로후전생리특성화역량득도명현회복,유효완해골격기운동성피로,사골격기역량회복。
The aim of this study is to investigate the acute effects of vibration massage to the skeletal muscle fatigue through the grip strength and the sEMG testing.Eight young normal males participated.They were required to perform the same wrist flexion and extension until they were exhausted and unable to continue the original movement due to exercise-induced fatigue.Then vibration massage was used on one upper limb of subjects with Power Plate（the vibration group）,while the other side without vibration was defined as the control group.The vibration massage lasted for 3 minutes,with frequency of 30Hz,amplitude of 2mm.Grip strength and the sEMG of the palmaris longus of both groups were measured before and after wrist exhaustive movement,and the same measurements were repeated after the vibration massage.Then iEMG,MPF and MF of the sEMG were analyzed with Mega 6000.The results show that after the wrist exhaustive movement,grip strength of both sides decreased significantly（p0.01）,while iEMG,MPF and MF of palmaris longus muscle changed with significant differences（p0.05）.After the vibration massage,it was showed that the iEMG of sEMG decreased significantly and the grip strength of the vibration group had significant recovery compared with the control group（p0.01）,while vibration massage having no significant effect on MF,MPF（p0.05）.Conclusively,acute vibration massage with frequency of 30Hz,amplitude of 2mm is reliable and would have positive effects upon the exercise-induced fatigue of skeletal muscle,helping skeletal muscle recovery both in muscle strength and electrophysiological properties.
