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. 1998 Oct;37(10):831-5.
doi: 10.2169/internalmedicine.37.831.

In-phase chest wall vibration decreases dyspnea during arm elevation in chronic obstructive pulmonary disease patients

H Nakayama  1 , M Shibuya, M Yamada, H Suzuki, M Arakawa, I Homma
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Free article

In-phase chest wall vibration decreases dyspnea during arm elevation in chronic obstructive pulmonary disease patients

H Nakayama et al. Intern Med. 1998 Oct.
Free article

Abstract

In-phase chest wall vibration (IPV) is known to decrease dyspnea in patients with chronic obstructive pulmonary disease (COPD) at rest and during leg exercise. In the present study, the effects of IPV (100 Hz) on dyspnea and arm fatigue during upper extremity activity were studied in 9 patients with COPD (mean FEV1, 0.95 l). Dyspnea and arm fatigue (modified Borg scale) and ventilatory variables were measured during arm elevation (AE) with weights lifted straight above the head with and without IPV. Mean dyspnea during AE was 3.3 without IPV and 2.1 with IPV (p<0.05), but, arm fatigue, oxygen saturation and end-tidal FCO2 were not affected by IPV. Minute ventilation during AE was significantly increased with IPV in 5 of 9 patients. The results suggest that IPV decreases dyspnea during AE.

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