评估步行运动动机的神经基础
Sarah Doren1, Sarah M Schwab1, Kaitlyn Bigner1
1Department of Rehabilitation, Exercise and Nutrition Sciences, College of Allied Health Sciences, University of Cincinnati, Cincinnati, Ohio, USA.
Physical therapy
|November 19, 2023
概括
简单的动机提示可以提高步行速度和大脑活动,特别是在背中前额叶皮层 (dmPFC). 这个区域将动机与运动控制联系在一起,为运动康复提供了洞察力.
科学领域:
- 神经科学是一个神经科学.
- 运动生理学 运动生理学
- 康复科学 康复科学 康复科学
背景情况:
- 动机对于运动性能和炼坚持至关重要.
- 动机的神经支,特别是在体力活动期间,仍然不完全理解.
- 以前的研究表明,背中前额叶皮层 (dmPFC) 有关走路的动机.
研究的目的:
- 为了实验性地研究动机散步运动期间大脑活动的变化.
- 为了确定大脑活动,自我报告的动机和步行速度之间的关系.
- 探索dmPFC在将动机与动力输出联系起来的作用.
主要方法:
- 26名健康成年人完成了最大速度的地面行走试验.
- 在一半的试验中,应用了激励性刺激 (一圈计时器,进度跟踪,鼓励).
- 近红外光谱 (NIRS) 测量了脑前部区域的氧化血红蛋白,包括dmPFC.
主要成果:
- 在"额外激励"试验 (2.67 m/s vs 2.43 m/s) 中,参与者走路的速度明显更快.
- 激励性刺激增加了所有测试的大脑区域的氧化血红蛋白反应,包括dmPFC.
- 增加的dmPFC活动与自我报告的更高的运动动机和更快的步行速度相关;这是唯一一个显示这两个关联的地区.
结论:
- 简单的动机干预可以增强散步运动期间大脑广泛的活动.
- 看来dmPFC是一个关键的神经枢纽,将情感 (动机) 信号与运动指令连接起来.
- 研究结果支持在临床环境中使用激励策略来改善炼坚持和结果,可能将dmPFC确定为未来干预的目标.
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