Mahler D A, Horowitz M B
Dartmouth Medical School Lebanon, NH 03756.
Med Sci Sports Exerc. 1994 Sep;26(9):1078-81.
The perception of breathlessness during physical activities is a frequent and disturbing complaint for patients with chronic respiratory disease. Psychophysical principles can be applied to quantitate the severity of dyspnea during cardiopulmonary exercise testing. Power production (or work) appears to be the most appropriate stimulus for measuring the dyspnea response. The 0-10 category-ratio (CR-10) scale and the visual analog scale (VAS) are two instruments for measuring the intensity of breathlessness. Studies demonstrate that the slope and/or intercept of the power production-breathlessness relationship provide a valid, reliable, and responsive approach for measurement. Ratings of dyspnea during exercise are useful to determine the severity of breathing difficulty and to assess the efficacy of therapy.
对于慢性呼吸道疾病患者而言，在体育活动期间出现的呼吸急促感是一种常见且令人困扰的主诉。心理物理学原理可用于在心肺运动测试期间量化呼吸困难的严重程度。功率产生（或功）似乎是测量呼吸困难反应的最合适刺激因素。0-10类别比率（CR-10）量表和视觉模拟量表（VAS）是两种测量呼吸急促强度的工具。研究表明，功率产生与呼吸急促关系的斜率和/或截距提供了一种有效、可靠且灵敏的测量方法。运动期间的呼吸困难评分有助于确定呼吸困难的严重程度并评估治疗效果。
