在健康人群中,在急性压力期间,体和体肌肉的血液动力学变化
Anas Rashid1, Silvestro Roatta2
1Lab of Integrative Physiology, Department of Neuroscience "Rita Levi Montalcini", University of Torino, Corso Raffaello 30, 10125, Torino, Italy.
European journal of applied physiology
|November 16, 2023
概括
在压力时,头部肌肉,如部和部,不会收缩. 相反,它们的血液流量增加,与四肢肌肉不同,表明它们在应激反应期间具有独特的自主控制.
科学领域:
- 身体生理学 身体生理学
- 自主神经系统的自主神经系统
- 压力反应应激反应
背景情况:
- 对面部或面部区域的自主控制是应激反应的关键.
- 像瞳孔膨胀,唾液和皮肤血流等功能受到调节.
- 在压力期间对头部肌肉血流的具体控制仍然不清楚.
研究的目的:
- 调查时间肌和按摩肌的血液动力学反应.
- 检查对五种不同的压力因素的反应.
主要方法:
- 共有16名健康人参与了这项研究.
- 随机排列的压力因素:冷压器,心理算术,呼吸暂停,同度握手,握手后肌肉缺血.
- 用手指脉冲光谱学和近红外光谱学测量血液动力学和组织氧化变化.
主要成果:
- 所有压力因素都显著增加了动脉血压.
- 在精神算术和同位数手握期间,肌肉氧化增加,表明血液流量增加.
- 在任何肌肉中都没有观察到血管收缩反应.
结论:
- 体和体肌肉对压力因素的血液动力学反应类似.
- 这些反应不同于四肢肌肉,缺乏明显的血管收缩.
- 独特的同情控制可能与攻击性/防御性角色或水静态因素有关.
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