Dizzy triathlete-evidence supporting vestibular etiology
| Autor: | Timo P. Hirvonen, Laura K. Mäkinen, Tuomas Klockars, Topi Jutila, Karin Blomgren, Iida Kaisa Manninen, Tuomas Hyytiä |
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| Přispěvatelé: | University of Helsinki, Helsinki University Hospital, Department of Neuroscience and Biomedical Engineering, Aalto-yliopisto, Aalto University, HUS Head and Neck Center, Children's Hospital, Korva-, nenä- ja kurkkutautien klinikka, Clinicum |
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male medicine.medical_specialty Physical Therapy Sports Therapy and Rehabilitation Nystagmus open water swimming Athletic Performance Dizziness Running 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Nystagmus Physiologic Medicine Humans Orthopedics and Sports Medicine 3125 Otorhinolaryngology ophthalmology Ear Protective Devices triathlon 030223 otorhinolaryngology dizziness Swimming Vestibular system biology business.industry Athletes caloric vestibular reaction Caloric response Caloric theory Eye movement biology.organism_classification 3. Good health Bicycling Cold Temperature 030220 oncology & carcinogenesis Etiology Female Vestibule Labyrinth medicine.symptom business human activities nystagmus Physical Conditioning Human |
| Zdroj: | Scandinavian journal of medicinescience in sportsREFERENCES. 31(12) |
| ISSN: | 1600-0838 |
| Popis: | Funding Information: We thank all triathlon clubs and athletes for help and a positive attitude toward our study. This work was supported by the Helsinki University Hospital Research Fund and The Finnish ORL‐HNS Foundation under Grant 2020022. Publisher Copyright: © 2021 The Authors. Scandinavian Journal of Medicine & Science In Sports published by John Wiley & Sons Ltd. Dizziness during or after the swimming leg is a common complaint among triathletes. We hypothesized that the dizziness is caused by asymmetrical cooling of the vestibular organ. This caloric response is characterized by involuntary eye movements called nystagmus. Altogether, 125 triathletes completed an electronic questionnaire. Fifteen triathletes who had frequently experienced dizziness during the swimming leg agreed to take part in a cold water swimming test. The test comprised two cold water swimming legs, first without earplugs and then with earplugs to prevent a potential caloric response. Eye movements and possible nystagmus were recorded immediately after the swimming legs. A majority (87%, 109/125) of athletes had experienced dizziness during triathlon races or training. Of these, almost all (97%, 106/109) experienced it during or after swimming. Dizziness affected the triathlon performance in half of the athletes with dizziness (50%, 51/102). Fifteen athletes participated in a cold water swimming test. During the first leg (without earplugs), 11/15 athletes (73%) experienced dizziness. Of these, six had nystagmus (55%), four had uncertain nystagmus (36%), and one did not have nystagmus (9%). Only one of these athletes experienced dizziness during the second leg with earplugs. The prevalence of dizziness among triathletes is notable. A large part of the dizziness is likely to be caused by caloric reaction of the vestibular organ. We recommend earplug usage for triathletes suffering from dizziness during the swimming leg. |
| Databáze: | OpenAIRE |
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