Why the study?
Does incremental leg exercise cause early respiratory muscle deoxygenation in patients with chronic heart failure compared to normal subjects?
Population
29 patients with chronic heart failure and 21 normal subjects
Comparison
Incremental leg exercise with expired gas… vs Normal subjects
Design
Cross-sectional
Authors
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Early respiratory muscle deoxygenation may limit exercise tolerance in chronic heart failure; hypothesis-generating for perfusion and ventilatory mechanisms.
Does incremental leg exercise cause early respiratory muscle deoxygenation in patients with chronic heart failure compared to normal subjects?
Patients with chronic heart failure experience early respiratory muscle deoxygenation during exercise due to a limited ability to increase perfusion combined with greater work of breathing.
Terakado et al. (1999) studied this question.
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