Abstract
Background: Relaxation postures are recommended to reduce the work of breathing and dyspnea in patients with COPD. We already reported that effects of relaxation postures in ERS Congress 2011. Especially, the evidence for the exercise therapy of lower extremity in COPD is high. But in fact, COPD patients often become the exercise cessation by dyspnea. We also have the report to relieve dyspnea for the manual chest squeezing in relaxation posture. However, it is not clear that the effects of the manual chest squeezing coordinated expiration during exercise in patients with COPD. The purpose of this study is to clarify combined effect of the manual chest squeezing during exercise from the point of view of clinical stratification.
Methods: Twenty-six stable outpatients with COPD (77yrs±9.8) participated in the study. We measured mouth occlusion pressure (P0.1), ventilatory parameters, and degree of relaxation used by visual analogue scale (VAS) in quiet breathing and during exercise every minute. The exercise load set it in ramp load for 10w /min using a bicycle ergometer and we performed it until all out. It was made at randomly there is manual chest squeezing or not. All patients were measured pulmonary function, arterial blood gas analysis and respiratory muscle strength.
Results: There were significantly reduced in P0.1/PImax, expiratory flow, HR with chest squeezing (p<0.05). And VO2 was significantly increased with chest squeezing (p<0.05)
Conclusions: Manual chest squeezing during exercise may be effective to reduce ventilatory parameters and dyspnea due to central output and peripheral mechanics in patients with COPD.
- Copyright ©ERS 2015