RT Journal Article
SR Electronic
T1 Noninvasive Ventilation as an Important Adjunct to an Exercise Training Program in Subjects With Moderate to Severe COPD
JF Respiratory Care
FD American Association for Respiratory Care
SP respcare.05763
DO 10.4187/respcare.05763
A1 Kamilla Tays Marrara
A1 Valéria Amorim Pires Di Lorenzo
A1 Rodrigo B Jaenisch
A1 Ramona Cabiddu
A1 Tatiana de Oliveira Sato
A1 Renata Gonçalves Mendes
A1 Claudio R Oliveira
A1 Dirceu Costa
A1 Audrey Borghi-Silva
YR 2018
UL http://rc.rcjournal.com/content/early/2018/06/26/respcare.05763.abstract
AB BACKGROUND: The primary objective of this study was to investigate whether noninvasive ventilation (NIV) can positively affect exercise capacity, maximum oxygen uptake (V̇O2), and symptoms after a 6-week physical training program for subjects with moderate to very severe COPD.METHODS: 47 subjects with COPD who were enrolled in a physical training program were randomized to either physical training alone or NIV + physical training (NIV-Physical training). Physical training consisted of dynamic aerobic exercises on a treadmill 3 times/week for 6 weeks, for a total of 18 sessions. NIV was titrated according to the subject's tolerance at rest and during exercise. Assessments included physiological responses and symptoms at the incremental cardiopulmonary exercise test peak and during submaximal exercise on a treadmill, 6-min walk distance, maximum inspiratory (PImax) and expiratory pressure (PEmax), BODE index, and health-related quality of life.RESULTS: 43 subjects completed the 6-week physical training program. Both groups improved 6-min walk distance, PImax, BODE index, and quality of life, and no differences were found between groups. However, significant improvements were observed for subjects in the NIVPhysical training group with regard to PEmax, maximum V̇O2, maximum metabolic equivalents, circulatory power, and maximum SpO2.CONCLUSIONS: A 6-week physical training program alone can improve tolerance for exercise and quality of life, in addition to reducing the risk of mortality. However, NIV associated with a physical training program was shown to have an additive beneficial effect on powerful prognostic markers (maximum V̇O2 and circulatory power) and to reduce symptoms and improve oxygen saturation in subjects with moderate to very severe COPD.