Marinho Patrícia E M, Raposo Maria Cristina, Dean Elizabeth, Guerra Ricardo O, de Andrade Arméle Dornelas
Cardiopulmonary Physical Therapy Laboratory, Department of Physical Therapy, Federal University of Pernambuco , Recife , Brazil .
Physiother Theory Pract. 2014 Nov;30(8):540-3. doi: 10.3109/09593985.2014.908443. Epub 2014 Apr 21.
The purpose of this study was to evaluate the performance in the 6-minute walk test (6 MWT) of elderly patients with chronic obstructive pulmonary disease (COPD) by comparing to a group of healthy elderly patients, performed with and without verbal encouragement. This cross-sectional study compared 40 patients with COPD (forced expiratory volume in the first second (FEV1%) = 53.7 ± 23.8%; forced vital capacity (FVC%) = 65.5 ± 20.8%; and the FEV1/FVC ratio = 55.4 ± 12.4) and 40 healthy elderly patients (control). The 6 MWT's were performed with and without verbal encouragement according to the American Thoracic Society (ATS), monitoring the distance walked (6 MWD), the duration of walking (TW) and the perceived effort index (PEI) through the Borg scale between the groups. No differences were observed in patients with COPD when the tests were performed with and without verbal encouragement for the 6 MWD, TW and PEI, the same occurring in the control group for the 6 MWD, TW and PEI, respectively. The use of verbal encouragement was not sufficient to promote improvement in the performance of the 6 MWT (6 MWD, TW and PEI) of patients with COPD and healthy elderly patients.
本研究的目的是通过与一组健康老年患者进行比较，评估慢性阻塞性肺疾病（COPD）老年患者在有和没有言语鼓励情况下的6分钟步行试验（6MWT）表现。这项横断面研究比较了40例COPD患者（第1秒用力呼气量（FEV1%）=53.7±23.8%；用力肺活量（FVC%）=65.5±20.8%；FEV1/FVC比值=55.4±12.4）和40例健康老年患者（对照组）。根据美国胸科学会（ATS）标准，在有和没有言语鼓励的情况下进行6MWT，监测两组之间的步行距离（6MWD）、步行持续时间（TW）以及通过Borg量表得出的主观用力指数（PEI）。在有和没有言语鼓励的情况下进行测试时，COPD患者的6MWD、TW和PEI均未观察到差异，对照组的6MWD、TW和PEI也分别未观察到差异。言语鼓励不足以促进COPD患者和健康老年患者6MWT（6MWD、TW和PEI）表现的改善。
