The influence of prior activity upon inspiratory muscle strength in rowers and non-rowers
Deutscher übersetzter Titel: | Einfluss von Aufwaermarbeit auf die Kraft der Einatmungsmuskulatur bei Ruderern und Nicht-Ruderern |
---|---|
Autor: | Volianitis, S.; McConnell, A.K.; Koutedakis, Y.; Jones, D.A. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 20 (1999), 8, S. 542-547, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-1999-9464 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199912403847 |
Quelle: | BISp |
Abstract des Autors
The aim of this study was to investigate whether a "warm-up" phenomenon in the strength of the inspiratory muscles exists, and, under this assumption, whether whole body warm-up protocols or a specific respiratory warm-up is more effective in this respect. Eleven club level rowers performed a rowing warm-up, and twelve university students performed a general cycling warm-up. Both groups also performed a specific respiratory warm-up. Inspiratory muscle strength (Mueller manoeuvre) and lung function (flow-volume loops) were measured before and after the three conditions. Isokinetic strength during knee extension was measured before and after the rowing warm-up. The two whole body warm-up protocols had no effect on inspiratory muscle strength or any lung function parameter despite the significant (3.8+/-SD 14%; p<0.05) increase in peak torque that the rowing warm-up elicited. The respiratory warm-up induced a significant increase in inspiratory mouth pressure (8.5+/-1.8%; p<0.0001) but not in any other lung function parameter. Following the rowing incremental test to exhaustion, maximum inspiratory pressure decreased by 7.0+/-2.0%, which is an indication of respiratory muscle fatigue. These data suggest that the inspiratory muscle strength can be enhanced with preliminary activity, a phenomenon similar to the one known to exist for other skeletal muscles. In addition, a specific respiratory warm-up is more effective in this respect than whole body protocols. Verf.-Referat