Abstract
AbstractsForced expiratory volume (FEV) and electromyographic activity (EMG) of expiratory muscles were measured in patients with asthma. EMGs of expiratory muscles were recorded from the 8th intercostal space at the anterior axillary line with surface electrodes. Relations between FEV and EMG were compared during asthma attacks and after inhaling a bronchodilator. This method has two advantages in the evaluation of asthma treatment. First; one can determine whether a subject, during an asthma attack, could exhale maximally before and after inhalation of a bronchodilator, second; pre‐ and post‐treatment expiratory force can be compared. A more reliable indication of the effectiveness of treatment can thus be obtained.
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