Key result
Moderate exercise significantly enhanced the slope of the ventilatory response curve to hypoxia compared to rest (1,082.9 vs 306.5 l/min/mmHg, p<0.05), alongside similar increases in heart rate responsiveness.
Why the study?
Does moderate exercise enhance ventilatory and heart rate responsiveness to hypoxia compared to rest in human subjects?
Population
12 subjects (1 male and 11 female)
Comparison
Progressive isocapnic hypoxia during moderate… vs Progressive isocapnic hypoxia at rest
Design
Other
Authors
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Exercise-augmented hypoxic ventilatory response in tiny cohort; leaves open clinical relevance and need for larger trials.
Observational (n=12)
No
Does moderate exercise enhance ventilatory and heart rate responsiveness to hypoxia compared to rest in human subjects?
Absolute Event Rate: 1082.9% vs 306.5%
p-value: p=<0.05
Moderate exercise significantly enhances both ventilatory and heart rate responsiveness to hypoxia, indicating a highly synergistic relationship between respiratory and cardiac regulation.
Ohyabu et al. (1988) conducted an observational in Healthy volunteers (n=12). Moderate exercise during progressive hypoxia vs. Rest during progressive hypoxia was evaluated on Slope of the ventilatory response curve to hypoxia (AVE) (p=<0.05). Moderate exercise significantly enhanced the slope of the ventilatory response curve to hypoxia compared to rest (1,082.9 vs 306.5 l/min/mmHg, p<0.05), alongside similar increases in heart rate responsiveness.
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