Exercise-induced laryngeal obstruction in athletes treated with inspiratory muscle training

BMJ Open Sport & Exercise Medicine
Astrid SandnesOla Drange Røksund

Abstract

Exercise-induced laryngeal obstruction (EILO) is common in athletes and presents with dyspnoea, chest tightness, inspiratory stridor and sometimes panic reactions. The evidence for conservative treatment is weak, but case reports suggest effects from inspiratory muscle training (IMT). We aimed to explore effects from IMT used in athletes with EILO. Twenty-eight athletes, mean age 16.4 years, diagnosed with EILO at our clinic, participated in a 6-week treatment programme, using a resistive flow-dependent IMT device (Respifit S). Four athletes competed at international level, 13 at national and 11 at regional levels. Video-recorded continuous transnasal flexible laryngoscopy was performed from rest to peak exercise (continuous laryngoscopy exercise (CLE) test) and scored before and 2-4 weeks after the training period. Ergospirometric variables were obtained from this CLE set-up. Lung function was measured according to guidelines. Symptom scores and demographic variables were obtained from a questionnaire. After the treatment period, symptoms had decreased in 22/28 (79%) participants. Mean overall CLE score had improved after treatment (p<0.001), with the scores becoming normal in five athletes but worse in two. Most of the improv...Continue Reading

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Citations

Aug 17, 2019·Frontiers in Surgery·Astrid SandnesHege H Clemm
Jul 27, 2021·Frontiers in Pediatrics·Merete R BenestadBente J Vederhus
Dec 4, 2020·Annals of Physical and Rehabilitation Medicine·Edem AlladoBruno Chenuel
Nov 26, 2021·Physiological Reports·Astrid Haugen LieHege H Clemm

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