VO2 kinetics in subjects differing in aerobic capacity : investigation by spectral analysis
Deutscher übersetzter Titel: | Sauerstoffaufnahmekinetik bei Personen mit unterschiedlicher aerober Kapazität : Untersuchung mit Hilfe der Spektralanalyse |
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Autor: | Essfeld, D.; Hoffmann, Uwe; Stegemann, J. |
Erschienen in: | European journal of applied physiology |
Veröffentlicht: | 56 (1987), 5, S. 508-515, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 1439-6319, 0301-5548 |
DOI: | 10.1007/BF00635362 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU198807013096 |
Quelle: | BISp |
Abstract des Autors
The power-VO2 transfer functions of 38 subjects differing in aerobic capacity have been determined on the basis of breath-by-breath total oxygen uptake (VO2) measurements during light cycle ergometer exercise (lactic acid concentration below 2 mmol/l). At constant pedalling frequency (1 Hz) pseudorandom binary sequences (PRBS) of workload were used as the testing signal. The VO2 response was analysed by autocorrelating the ergometer power input and crosscorrelating the power input and VO2 output. From the spectra of these functions the amplitude ratios and phase relationships were computed for the first six harmonics of the PRBS fundamental (14 mrad/s). We found that differences in aerobic capacity are associated with significant differences in the amplitude plots of the VO2 transfer function.