Inspiratory strengthening effect on resistive load detection and magnitude estimation
| Deutscher übersetzter Titel: | Auswirkung von Kraeftigung der Einatmungsmuskulatur auf Widerstandswahrnehmung und Einschaetzung der Widerstandsgroesse |
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| Autor: | Kellerman, B.A.; Martin, A.D.; Davenport, P.W. |
| Erschienen in: | Medicine and science in sports and exercise |
| Veröffentlicht: | 32 (2000), 11, S. 1859-1867, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource |
| Sprache: | Englisch |
| ISSN: | 0195-9131, 1530-0315 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU199912409505 |
| Quelle: | BISp |
Abstract des Autors
Purpose: This study investigated effects of inspiratory muscle training (IMT) on maximal inspiratory pressure (MIP), magnitude estimation (ME), and load detection (LD) of external resistive loads (deltaR) in healthy subjects. Methods: Ten adult volunteers IMT trained 5 d/wk for 4 wk. A training set consisted of six inspiratory efforts at 75% of MIP; daily training trials consisted of four sets. ME was calculated by linear regression, with actual and estimated deltaR loads plotted on log-log scale. LD was calculated by determining deltaR50/R0 fraction. Dependent measures were taken pre- and post-IMT. Results: MEP significantly increased from 87 to 139 cmH2O pre- to post-IMT, respectively. ME for individual loads significantly decreased post-IMT for all but the highest deltaR. There was no significant difference in LD deltaR50/R0 post-IMT. Conclusions: The results demonstrate that inspiratory muscle strength gains were associated with decreased ME of deltaRs without changing LD deltaR50/R0. This suggests that the mechanisms mediating the detection of deltaRs may be different than the mechanisms for estimating deltaR size. Verf.-Referat