Browsing by Author "Villafranca, C"

Now showing 1 - 4 of 4
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    Breathing pattern and gas exchange at peak exercise in COPD patients with and without tidal flow limitation at rest
    (EUROPEAN RESPIRATORY SOC JOURNALS LTD, 2001) Diaz, O; Villafranca, C; Ghezzo, H; Borzone, G; Leiva, A; Milic Emili, J; Lisboa, C
    Expiratory flow limitation (FL) at rest is frequently present in chronic obstructive pulmonary disease (COPD) patients. It promotes dynamic hyperinflation with a consequent decrease in inspiratory capacity (IC), Since in COPD resting IC is strongly correlated with exercise tolerance, this study hypothesized that this is due to limitation of the maximal tidal volume (VT,(max)) during exercise by the reduced IC, The present study investigated the role of tidal FL at rest on: 1) the relationship of resting IC to VT,(max) and 2) on gas exchange during peak exercise in COPD patients.
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    Effect of inspiratory muscle training with an intermediate load on inspiratory power output in COPD
    (MUNKSGAARD INT PUBL LTD, 1998) Villafranca, C; Borzone, G; Leiva, A; Lisboa, C
    There is very little information about the effect of inspiratory muscle training on inspiratory how (V'I) and thus an power output (PO) in patients with chronic obstructive pulmonary disease (COPD). In this study me aimed to evaluate the changes induced by training on the determinants of pg),
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    Inspiratory muscle training in chronic airflow limitation: Effect on exercise performance
    (1997) Lisboa, C; Villafranca, C; Leiva, A; Cruz, E; Pertuze, J; Borzone, G
    The 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.
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    Role of inspiratory capacity on exercise tolerance in COPD patients with and without tidal expiratory flow limitation at rest
    (2000) Diaz, O; Villafranca, C; Ghezzo, H; Borzone, G; Leiva, A; Milic-Emil, J; Lisboa, C
    Expiratory flow limitation promotes dynamic hyperinflation during exercise in chronic obstructive pulmonary disease (COPD) patients with a consequent reduction in inspiratory capacity (IC), limiting their exercise tolerance. Therefore, the exercise capacity of patients with tidal expiratory flow limitation (FL) at rest should depend on the magnitude of IC, The presented study was designed to evaluate the role of FL on the relationship between resting IC, other respiratory function variables and exercise performance in COPD patients,