The standsrdizaition and evaluation of the effects of breathing instruction of pulmonary rehabilitation

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350613
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: Tohoku Fukushi University
• Principal Investigator: KOBAYASHI DAISUKE 東北福祉大学, 健康科学部, 助教 (60636132)
• Co-Investigator(Kenkyū-buntansha): KUROSAWA HAJIME 東北大学, 環境・安全推進センター, 教授 (60333788)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 呼吸リハビリテーション / 呼吸トレーニング / 吸気と呼気のタイミング / 呼気延長 / 呼気終末肺気量位の低下

Outline of Final Research Achievements

Breathing training is an important program to alleviate dyspnea in patients with airflow limitation such as COPD. To find out an optimal breathing strategy for instruction to the patients, relationships between breathing pattern and dyspnea were studied using an experimental model of obstructive diseases. Minute ventilation (VE) and respiratory frequency (f) were not significantly changed during any ventilatory loads. In stead, with resistance dependent fashion, mean inspiratory flow (VT/TI) decreased, duty cycle (TI/TTOT) and BS increased. Changes in the individual BS with expiration during any ventilatory loads were correlated with changes in the end-expiratory lung volume (EELV) values estimated from IC. The effect of breathing training on dyspnea is related to the combined change that it promotes in the TI/TTOT and EELV, suggesting a key strategy for breathing in patients with airflow limitation.

Free Research Field

リハビリテーション科学