Comparação de diferentes testes funcionais e suas relações com estado funcional e qualidade de vida em indivíduos com doença pulmonar obstrutiva crônica (DPOC)
Abstract
Objectives: to evaluate and compare the responses to the various functional tests,
and the concordance between the six-minute walk test in hallway (6MWT) and the of oval
track (6MWToT), of treadmill (6MWTT), and of treadmill with inclination (6MWTTI), the
six-minute step test (6MST) and the two-minute chair test (2MCT), in patients with
Chronic Obstructive Pulmonary Disease (COPD), and to correlate the responses with
functional state and quality of life. Methods: Ten patients with COPD (72±7years,
30%<FEV1<80%predicted) were assessed using the functional tests. A dyspnea was
assessed using the London Chest Activity of Daily Living and the Medical Research
Council scales; and the quality of life was assessed using the St George s Respiratory
Questionnaire (SGRQ). Results: In the interests analysis, there was lower walking distance
in the 6MWTT and 6MWTTI was observed, to compare in the 6MWT and 6MWToT; the
∆Sp,O2 (delta of arterial oxygen saturation measured by pulse oximeter) in the 6MWTTI
was significantly greater that in the 6MWT, but not between to change in dyspnea and
fatigue/pain in the lower-limbs between rest and exercise of peak (∆). Concordance and
correlation was observed between the lower Sp,O2 of the 6MWT with the 6MWToT,
6MWTT, 6MWTTI, 6MST and 2MCT. Strong correlations was observed between the
performances on the 6MST and 6MWT, 6MWToT and 6MWTT; and between the physical
activity domain of the SGRQ with the performances in the 6MWT, 6MWToT, 6MWTT,
6MST and 2MCT. Conclusion: The functional tests produced similar subjective
responses; however, the 6MWTTI caused greater desaturation that 6MWT. The
concordance between the 6MWT and the tests performed, suggests acceptable use of any
these tests in the physiotherapeutic clinical routine of the individuals COPD. The tests performed, except the 6MWTTI, shown to be indicators of the quality of life (physical
activity domain)