Metabolic consequences of resistive force selection during cycle ergometry exercise
Gespeichert in:
| Deutscher übersetzter Titel: | Metabolische Konsequenzen der Auswahl der Widerstandskraft beim Training auf dem Fahrradergometer |
|---|---|
| Autor: | Baker, Julien S.; Graham, Michael R.; Davies, Bruce |
| Erschienen in: | Research in sports medicine |
| Veröffentlicht: | 15 (2007), 1, S. 1-11, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
| Sprache: | Englisch |
| ISSN: | 1543-8627, 1543-8635 |
| DOI: | 10.1080/15438620600985928 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU200708002150 |
| Quelle: | BISp |
Abstract des Autors
The purpose of this study was to compare power outputs and blood lactate concentrations ([La-]B) following 30 s of maximal cycle ergometry when resistive forces were derived from total-body mass (TBM) or fat-free mass (FFM). Differences (P < 0.05) in peak power output (PPO), pedal velocity (PV) and resistive forces (RF) were observed when the TBM and FFM protocols were compared (953 ± 114 W vs. 1020 ± 134 W; 134 ± 8 rpm vs. 141 ± 7 rpm; 6 ± 1 kg vs. 5 ± 1 kg, respectively). Blood lactate values ([La-]B) increased (P < 0.01) postexercise for both protocols and were significantly greater for TBM (10.6 ± 1.2 mmol.l-1 vs 11.6 ± 1.1 mmol.l-1, P < 0.05). These findings indicate that the FFM resistive force protocol may maximise adenosinotriphosphate-phosphocreatine (ATP-PC) utilisation with smaller contributions from anaerobic glycolysis when compared with TBM. These results may have important implications in the assessment of high intensity exercise performance. Verf.-Referat