Effects of afferent signals derived from peripheral fatigue on efferent command from central nervous system during exercise

运动过程中外周疲劳传入信号对中枢神经系统传出指令的影响

• 批准号: 21800083
• 负责人: MATSUURA Ryouta
• 金额: $ 1.35万
• 依托单位: Kyushu Kyoritsu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21800083/
• 关键词: 筋疲労; 非活動筋; 表面筋電図; アルカローシス; 疲労

The purpose of this study was to determine the effects of changes in muscle metabolites during leg pedaling exercise on force and surface electromyogram activity during subsequent maximal isometric elbow flexion. Exercise intensity during the leg pedaling exercise or oral administration of sodium bicarbonate 2 hours before the initiation of the leg pedaling exercise did not influence force and surface electromyogram activity during subsequent maximal isometric elbow flexion. Therefore, these results suggest that changes in muscle metabolites in active muscles induced by leg pedaling exercise do not act as afferent signals to modify efferent command from the central nervous system during subsequent maximal voluntary contraction in inactive muscles.

本研究的目的是确定腿蹬运动中肌肉代谢物的变化对随后最大等长屈曲肘关节的力和表面肌电图活动的影响。蹬腿运动时的运动强度或蹬腿运动开始前2小时口服碳酸氢钠对随后最大等距肘关节屈曲时的力和表面肌电活动没有影响。因此，这些结果表明，在随后非活动肌肉的最大自愿收缩期间，腿部蹬运动引起的活动肌肉中肌肉代谢物的变化并不作为传入信号来修改来自中枢神经系统的传出命令。

项目成果

脚ペダリング運動がその後の最大等尺性肘屈曲時における筋力発揮と表面筋電図活動に及ぼす影響

腿部蹬踏运动对随后最大等距肘屈曲过程中肌肉力量产生和表面肌电活动的影响

• 发表时间: 2010
• 作者: Yamamori T;et al;桐本光,鈴木誠,大山峰生,大西秀明,田巻弘之,緒方勝也,飛松省三;松浦亮太,平木場浩二,高橋恭平
• 通讯作者: 松浦亮太,平木場浩二,高橋恭平