Modified Six-Minute Walk Test : Number of Steps per Second

Modified Six-Minute Walk Test : Number of Steps per Second

[ABSTRACT] The 6-min walk test (6MWT) has been used to examine subjective dyspnea, predict mortality and measure clinical outcomes in studies of patients with chronic pulmonary or heart disease. Although the 6MWT is useful in assessing the general ability for patients to perform daily physical activ...

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Bibliographic Details
Published in:YONAGO ACTA MEDICA Vol. 57; no. 1; pp. 61 - 63
Main Authors: Naoto Burioka, Akari Imada, Akiko Kiyohiro, Fumika Sugitani, Takenori Fujii, Akari Hosaka, Sachiko Nakamoto, Takashi Amisaki, Eiji Shimizu
Format: Journal Article
Language:Japanese
Published: Tottori University Faculty of Medicine 2014
Online Access:Get full text
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Summary:[ABSTRACT] The 6-min walk test (6MWT) has been used to examine subjective dyspnea, predict mortality and measure clinical outcomes in studies of patients with chronic pulmonary or heart disease. Although the 6MWT is useful in assessing the general ability for patients to perform daily physical activities, it is difficult to evaluate time-dependent responses. To improve the 6MWT, we devised a new index-the number of steps walked per second (NSPS). Eleven healthy subjects and 7 patients with chronic obstructive pulmonary disease (COPD) performed the 6MWT. Then, we calculated the NSPS. The mean NSPS was significantly higher in the healthy subjects than in the COPD patients, while the coefficient of variation of the NSPS was significantly smaller in healthy subjects compared with COPD patients. Calculation of the NSPS was useful in evaluating walking patterns. This modified 6MWT may be helpful for assessing the efficacy of rehabilitation and drug therapy for COPD.
ISSN:0513-5710