PMID: 9543266May 16, 1998Paper

Effect of inspiratory muscle training with an intermediate load on inspiratory power output in COPD

The European Respiratory Journal
C VillafrancaC Lisboa

Abstract

There is very little information about the effect of inspiratory muscle training on inspiratory flow (V'I) and thus on power output (PO) in patients with chronic obstructive pulmonary disease (COPD). In this study we aimed to evaluate the changes induced by training on the determinants of PO. Thirty one patients with severe COPD were randomly divided into: Group 1, trained with 30% maximal inspiratory pressure (PI,max); Group 2, with 10% PI,max; and Group 3 also trained with 30% PI,max, but the breathing pattern was evaluated while performing the training manoeuvres along inspiratory muscle training (IMT). All groups used a threshold device for 10 weeks. The PO for each of the loads during an incremental threshold test was evaluated prior to and after training. Maximal PO (POmax) increased in all groups, but the increment was higher in groups trained with 30% PI,max (p<0.005), mainly due to an increase in V'I. Group 3 showed a progressive increase in V'I (p<0.001) during the training manoeuvres in spite of an increase in load along IMT. In addition, the load after IMT was overcome with a shorter inspiratory time (tI) (p<0.02), a smaller tI/total duration of the respiratory cycle (t(tot)), (p<0.001) with no change in tidal volum...Continue Reading

Associated Clinical Trials

Citations

Feb 2, 2006·Respiratory Physiology & Neurobiology·Stephanie EnrightDavid Davies
Feb 9, 2005·Current Opinion in Pulmonary Medicine·Paltiel Weiner, Alison McConnell
Mar 22, 2005·American Journal of Respiratory and Critical Care Medicine·Thierry TroostersMarc Decramer
Jun 9, 2006·American Journal of Respiratory and Critical Care Medicine·Linda NiciUNKNOWN ATS/ERS Pulmonary Rehabilitation Writing Committee
Nov 30, 2007·International Journal of Chronic Obstructive Pulmonary Disease·Ernesto CrisafulliEnrico M Clini
Dec 13, 2012·International Journal of Chronic Obstructive Pulmonary Disease·Milos PetrovicTheodor Wanke
Sep 26, 2015·American Journal of Respiratory and Critical Care Medicine·Azmy FaisalDenis E O'Donnell
Jul 26, 2011·Journal of the Formosan Medical Association = Taiwan Yi Zhi·Chien-Hui HuangChih-Wei Lee
Dec 13, 2005·Revue des maladies respiratoires·T Urban
Oct 16, 2004·The Australian Journal of Physiotherapy·Kylie HillPeter R Eastwood
Mar 3, 2007·Respiratory Medicine·Rasmi MagadlePaltiel Weiner
Feb 24, 2001·Clinics in Chest Medicine·G Bourjeily, C L Rochester
Apr 18, 2018·The Clinical Respiratory Journal·Marc BeaumontGregory Reychler
Aug 28, 2014·Expert Review of Respiratory Medicine·Daniel LangerDenis E O'Donnell

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