Impaired nasal mucociliary clearance in long-distance runners
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Deutscher übersetzter Titel: | Verminderte mukoziliaere Clearance der Nase bei Langstreckenlaeufern |
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Autor: | Muens, G.; Singer, P.; Wolf, F.; Rubinstein, I. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 16 (1995), 4, S. 209-213, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-2007-972993 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199510103282 |
Quelle: | BISp |
TY - JOUR AU - Muens, G. A2 - Muens, G. A2 - Singer, P. A2 - Wolf, F. A2 - Rubinstein, I. DB - BISp DP - BISp KW - Atmungssystem KW - Clearance KW - Infektionskrankheit KW - Langstreckenlauf KW - Luftfeuchtigkeit KW - Luftverschmutzung KW - Nase KW - Respirationstrakt KW - Sportmedizin LA - eng TI - Impaired nasal mucociliary clearance in long-distance runners TT - Verminderte mukoziliaere Clearance der Nase bei Langstreckenlaeufern PY - 1995 N2 - For years physicians have observed a high incidence of upper respiratory tract infections (URTI) after strenuous exercise. Mucosal surfaces represent a first-line-of-defense against infections, and pollutants or organisms entrapped in respiratory secretions are cleared by mucociliary transport. Little is known about this mechanism during exercise. The purpose of this study was to examine the nasal mucociliary clearance (NMCC) in amateur runners competing in a marathon race. Twelve amateur runners entered in an inner-city marathon race and 10 healthy sedentary subjects participated in the study. On the day of the race the outside temperature was 3øC. Nasal mucociliary transit time (NMTT) was measured daily for 1 week before and 1 week after the race by the saccharin sodium/indigo carmine method. Nasal tissue biopsies were taken, and cilia beat frequency (CBF) was measured as viability and function of ciliated epithelial cells were determined. NMTT was significantly prolonged after the race (17.1+/-1.2 min vs 8.9+/-0.9 min; athletes vs control group; mean+/-SEM) and returned to baseline over several days. CBF was significantly reduced only in the first 24 hours after the race (7.31+/-0.65 Hz for athletes vs 9.94+/-0.45 Hz, controls. After the race, athletes showed a higher percentage of ciliated cells with immotile cilia (37.1+/-1.3% vs 27.8+/-1.1%, athletes vs controls) or dead ciliated cells (7.3+/-0.9% vs 4.1+/-0.8%). The findings suggest impairment of NMCC up to several days after strenuous exercise, which might be partially caused by abnormally functioning ciliated cells. Possible explanations might include exposure to pollutants, cooling of the respiratory mucosa, altered mucosal bloodflow, and changes in the hydration of the airway surfaces associated with exercise. Impeded NMCC may contribute to the reported high incidence of URTI among participants in sports. Verf.-Referat L2 - https://dx.doi.org/10.1055/s-2007-972993 DO - 10.1055/s-2007-972993 SP - S. 209-213 SN - 0172-4622 JO - International journal of sports medicine IS - 4 VL - 16 M3 - Gedruckte Ressource M3 - Elektronische Ressource (online) ID - PU199510103282 ER -