急性心率变异性生物反馈对H反射调制的影响：一项初步研究。
Effect of Acute Heart Rate Variability Biofeedback on H-reflex Modulation: A Pilot Study.
作者信息
Pagaduan Jeffrey Cayaban, Wu Sam Shi Xuan, Fell James William, Chen Yung-Sheng
机构信息
College of Health and Medicine, School of Health Sciences, University of Tasmania, Tasmania Australia.
School of Health Sciences, Faculty of Health, Arts, and Design, Swinburne University, Swinburne Australia.
出版信息
J Hum Kinet. 2021 Jan 29;76:83-88. doi: 10.2478/hukin-2021-0001. eCollection 2021 Jan.
Heart rate variability biofeedback (HRV BFB) is paced breathing scheme that stimulates resonance in the cardiovascular system. This study aimed to investigate the effect of a single-session HRV BFB on Hoffman reflex (H-reflex) of the soleus muscle. Twelve healthy males (height: 173.7 ± 7.18 cm; weight: 72.7 ± 17.7 kg; age: 24.0 ± 5.02 yrs) completed a randomized-crossover intervention involving a 10-minute HRV BFB and normal breathing (CON) separated by 48 hours. Results revealed significantly lower 1a afferent activation after HRV BFB. Similarly, the HRV BFB also demonstrated lower proportion of activated motor neurons from 1a afferents. In conclusion, an acute HRV BFB influenced the reduction in motoneuron excitability at resting condition.
心率变异性生物反馈（HRV BFB）是一种有节奏的呼吸方案，可刺激心血管系统的共振。本研究旨在探讨单次HRV BFB对比目鱼肌霍夫曼反射（H反射）的影响。12名健康男性（身高：173.7±7.18厘米；体重：72.7±17.7千克；年龄：24.0±5.02岁）完成了一项随机交叉干预，包括一次10分钟的HRV BFB和正常呼吸（CON），两者间隔48小时。结果显示，HRV BFB后1a传入神经激活显著降低。同样，HRV BFB也显示出来自1a传入神经的激活运动神经元比例较低。总之，急性HRV BFB影响了静息状态下运动神经元兴奋性的降低。
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