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Effect of treadmill exercise on asthmatic children
The Journal of Allergy and Clinical Immunology
|May 1, 1976
Summary
Treadmill exercise can worsen asthma in children, with running causing more severe symptoms than walking. Heart rate during exercise did not predict the severity of exercise-induced asthma.
Area of Science:
- Pediatric Pulmonology
- Exercise Physiology
- Asthma Research
Background:
- Exercise-induced asthma is a common condition in children.
- Understanding triggers and severity is crucial for management.
Purpose of the Study:
- To investigate the impact of different treadmill exercise intensities on exercise-induced asthma in children.
- To determine if heart rate correlates with exercise-induced bronchospasm severity.
Main Methods:
- Peak expiratory flow rate (PEFR) was measured before and after treadmill walking and running in asthmatic children.
- Measurements were repeated at hourly intervals.
- Heart rate was monitored during exercise.
Main Results:
- Progressive decreases in PEFR indicated worsening exercise-induced asthma.
- Treadmill running induced more severe bronchospasm than treadmill walking.
- Exercise-induced asthma occurred even at heart rates below 160 bpm.
- Exercise heart rate did not correlate with the extent of bronchospasm.
Conclusions:
- Both treadmill walking and running can exacerbate asthma in children.
- Running appears to be a more potent trigger for exercise-induced bronchospasm.
- Heart rate alone is not a reliable indicator of exercise-induced asthma severity in this population.
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