The acute response to high intensity interval exercise in adults with exercise induced bronchoconstriction
Abstract
INTRODUCTION: Exercise induced bronchoconstriction (EIBC) occurs as a result of
airway cooling and drying in adults with airway hyperresponsiveness (AHR). Continuous
exercise leads to a significant decline in lung function; however, interval exercise may
allow ventilation to recover and prevent EIBC. PURPOSE: To determine the acute
response of lung function and the subjective perceptions during and after a bout of high
intensity interval (HIIE), moderate intensity interval (MIIE), and moderate intensity
continuous (MICE) exercise in adults with AHR. METHODS: Participants completed an
acute bout of HIIE, MIIE, and MICE. Lung function was assessed pre and post-exercise
while late phase symptoms were reported using a log and subjective responses were
assessed during each minute of exercise. RESULTS: Thirteen participants with EIBC
completed all protocols. Lung function was significantly lower following the MICE and
perceptions of effort and dyspnea were higher. CONCLUSION: It appears HIIE is well
tolerated among adults with AHR.