Yamahara Jun, Ito Kenichi, Nonaka Koji
a Department of Rehabilitation , National Hospital Organization, Osaka Minami Medical Center , Kawachi-Nagao-City, Osaka , Japan.
b Graduate School of Comprehensive Rehabilitation , Osaka Prefecture University , Habikino-City, Osaka , Japan.
Physiother Theory Pract. 2016 Aug;32(6):483-488. doi: 10.1080/09593985.2016.1202363. Epub 2016 Jul 26.
This study aimed at verifying the safety and effects of electrical stimulation ventilatory feedback (ESVF) to provide feedback during expiration, which may assist with breathing control in patients with chronic obstructive pulmonary disease (COPD). Because this is a new therapy, we examined the feasibility of the therapy in healthy adults. The 23 healthy adult participants were randomized into two groups: a stimulation group that received ESVF and a placebo group with the ESVF device attached, but not activated. Sensory stimulation was provided at a frequency of 20 Hz and pulse duration of 200 μs. During breathing training, participants practiced a prolonged expiration pattern and were instructed to maintain the breathing pattern during exercise. A variety of parameters such as respiratory time from the gas analyzer monitor and quantitative load were measured during lower-extremity cycle ergometer exercise. The primary outcome was the expiratory to inspiratory time ratio, which was significantly higher in the stimulation group than in the placebo group, both during and after exercise. No side effects were reported during the use of electrical stimulation. Therefore, ESVF is safe and facilitates maintenance of a prolonged expiration pattern during and after exercise.
本研究旨在验证呼气期间提供反馈的电刺激通气反馈（ESVF）的安全性和效果，这可能有助于慢性阻塞性肺疾病（COPD）患者的呼吸控制。由于这是一种新疗法，我们在健康成年人中检验了该疗法的可行性。23名健康成年参与者被随机分为两组：接受ESVF的刺激组和连接ESVF设备但未激活的安慰剂组。以20Hz的频率和200μs的脉冲持续时间提供感觉刺激。在呼吸训练期间，参与者练习延长呼气模式，并被指示在运动期间保持该呼吸模式。在下肢周期测力计运动期间，测量了各种参数，如来自气体分析仪监测器的呼吸时间和定量负荷。主要结果是呼气与吸气时间比，在运动期间和运动后，刺激组均显著高于安慰剂组。在使用电刺激期间未报告副作用。因此，ESVF是安全的，并且有助于在运动期间和运动后维持延长的呼气模式。
