PURPOSE:To evaluate the effects of the capacity to follow exercise training on the short-term outcomes (the 6-min walking distance: 6-MWD, the perception of dispnea and the Health-Related Quality of Life: HRQoL) in COPD patients rehabilitation.
METHODS:34 patients (age mean ± SD, 57 ± 7 years), 22 males and 12 females, with severe COPD (GOLD 2005 criteria) completed a comprehensive 8 weeks Pulmonary Rehabilitation Program (PRP). The ability to follow the exercise training was determined by the number of unintended major breaks lasting ≥ 1 min during three pre-study supervised physical exercise sessions. The patients were distributed in two groups with, on average, more one (A) and one or fewer (B) major breaks per session. The 6-MWD, the Medical Research Council (MRC) dispnea score and HRQoL evaluated with the Saint George’s respiratory questionnaire were determined before and after PRP. Exertional dispnea (ED) was evaluated before and after every 6-MWD with 100 mm visual analog scale (VAS).
RESULTS:Patients of both groups presented significantly better short-term outcomes after PRP. Patients of group B (18) showed significantly(p ≤; 0.01) greater improvements in exercise capacity comparatively with group A (16), with between-groups difference of 48 m for 6-MWD; also, group B presented significantly (p ≤; 0.05) better results in MRC dispnea score (0.76) and HRQoL (12 units).
CONCLUSION:Limited capacity to follow physical exercise of PRP has the consequence of smaller benefits of COPD patients rehabilitation.
CLINICAL IMPLICATIONS:These results highlight the importance of the initial ability of COPD patients to follow specific exercise protocol for acquiring satisfactory results.
DISCLOSURE:Paraschiva Postolache, None.