Journal of the Japanese Physical Therapy Association
Online ISSN : 2188-8361
Print ISSN : 1344-1272
ISSN-L : 1344-1272
Physical Therapy Japan Vol. 39 (2012) Abstracts
The Airway Occlusion Pressure During Upper Extremity Exercise in Healthy Adults: Differences between Supported and Unsupported Arm Exercise
Akiko AIHARATakeshi KERAKotaro TAMARIShigeki YOKOYAMAHirotoshi MOTODA
Author information
JOURNAL FREE ACCESS

2013 Volume 16 Issue 1 Pages 54-

Details
Abstract

Purpose: The purpose of this study was to examine the effect of supported and unsupported arm exercise on the 2 dyspnea indexes, namely, airway occlusion pressure (P0.1) and the ratio of the change in ventilation to the change in P0.1 (ΔVE/ΔP0.1), by using symptom-limited exercise stress testing. Methods: Twenty-one healthy male volunteers performed both these exercises with 3 increments(stage 1 to 3) in oxygen consumption, defined as exercise intensity. Each stage was performed at the same intensity between the 2 exercises, to aid in the comparison. The P0.1, VE, carbon dioxide production (VCO2), respiratory frequency (f), ventilatory equivalent of carbon dioxide (VE/VCO2) and the Borg scale rating of perceived dyspnea and arm muscle exertion was obtained at each stage. Results: The P0.1 was significantly greater in the unsupported arm exercise than in the supported arm exercise (P <0.001); however, there was no difference in ΔVE/ΔP0.1 between the 2 exercises. With higher load, the corresponding VE, VCO2, f, VE/VCO2 and the Borg scale rating of perceived dyspnea were significantly greater in the unsupported arm exercise than in the supported arm exercise. Conclusions: The results of this study indicate that there is a greater possibility of developing dyspnea during an unsupported arm exercise than during a supported arm exercise, possibly because of the greater ventilatory demand in the former.

Content from these authors
© 2013 by the Japanese Physical Therapy Association
Previous article Next article
feedback
Top