Inspiratory muscle training in chronic airflow limitation: Effect on exercise performance

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dc.contributor.authorLisboa, C
dc.contributor.authorVillafranca, C
dc.contributor.authorLeiva, A
dc.contributor.authorCruz, E
dc.contributor.authorPertuze, J
dc.contributor.authorBorzone, G
dc.date.accessioned2025-01-21T01:33:30Z
dc.date.available2025-01-21T01:33:30Z
dc.date.issued1997
dc.description.abstractThe effect of inspiratory muscle training (IMT) on exercise capacity in patients with chronic airflow limitation (CAL) has been debated. The present study was planned to further investigate the effects of IMT on exercise performance.
dc.description.abstractTwenty patients (aged 62+/-1 yrs; forced expiratory volume in one second/forced vital capacity (FEV1/FVC) 36+/-2%) were trained 30 min daily for 6 days a week during 10 weeks, with either 30% (Group 1) or 10% (Group 2) of peak maximal inspiratory pressure (PI,max) as a training load. Exercise performance was evaluated by the distance walked in 6 min (6MWD) and by changes in oxygen consumption (V'O-2 and minute ventilation (V'E) during a progressive exercise test. Changes in PI,max and dyspnoea were also measured.
dc.description.abstractResults showed a significant increment in peak PI,max in both groups, whereas dyspnoea and 6MWD improved only in Group 1 (p<0.05 and p<0.01, respectively). No increment in maximal workload or in peak V'O-2 was observed in either group. Patients in Group 1, however, showed a reduction in V'E and V'O-2, for the same exercise. A correlation between changes in V'E and V'O-2 during a workload of 75 kpm . min(-1) was observed in Group 1 (r=0.92; p<0.001).
dc.description.abstractWe conclude that inspiratory muscle training using a load of 30% peak maximal inspiratory pressure, improves dyspnoea, increases walking capacity and reduces the metabolic cost of exercise.
dc.fuente.origenWOS
dc.identifier.issn0903-1936
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97430
dc.identifier.wosidWOS:A1997WN81200007
dc.issue.numero3
dc.language.isoen
dc.pagina.final542
dc.pagina.inicio537
dc.revistaEuropean respiratory journal
dc.rightsacceso restringido
dc.subjectchronic airflow limitation
dc.subjectchronic obstructive pulmonary disease
dc.subjectdyspnoea
dc.subjectexercise capacity
dc.subjectmuscle training
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleInspiratory muscle training in chronic airflow limitation: Effect on exercise performance
dc.typeartículo
dc.volumen10
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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