VO2 response at the onset of heavy exercise is accelerated not by diathermic warming of the thigh muscles but by prior heavy exercise
Gespeichert in:
| Deutscher übersetzter Titel: | Die VO2 Reaktion am Beginn einer hohen Belastung wird nicht durch diatherme Erwärmung der Oberschenkelmuskulatur jedoch durch vorherige hohe Belastung beschleunigt |
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| Autor: | Fukuba, Yoshiyuki; Shinhara, Yuko; Houman, Toshiko; Endo Yamaoka, Masako; Yamada, Masako; Miura, Akira; Hayashi, Naoyuki; Sato, Hironori; Koga, Shunsaku; Yoshida, Takayoshi |
| Erschienen in: | Research in sports medicine |
| Veröffentlicht: | 20 (2012), 1, S. 13-24, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource |
| Sprache: | Englisch |
| ISSN: | 1543-8627, 1543-8635 |
| DOI: | 10.1080/15438627.2012.634672 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU201207004649 |
| Quelle: | BISp |
Abstract
The authors investigated whether the elevated muscle temperature induced by the first bout influenced the VO2 response during a second-bout of heavy exercise. The control conditions were two consecutive 6-min leg cycling bouts (work rate: Δ50% between LT and VO2max) separated by a 6-min baseline at 20 W (L1-ex to L2-ex). In the experimental conditions prior to the main bout (H2-ex), the diathermic warming to the front thigh was substituted for the first-bout. The VO2 response for the second bout was significantly accelerated compared with the first bout (mean +/- SD of the τ by monoexponential fitting: L1-ex: 53.8 +/- 11.6, L2-ex: 38.7 +/- 7.9 s, P<0.05). The diathermic warm-up, however, could not accelerate VO2 response for subsequent supra-LT leg exercise (τ for H2-ex: 52.3 +/- 7.7 s). It was concluded that the facilitation of VO2 response during supra-LT exercise after prior heavy exercise does not seem to be caused by increased muscle temperature per se and its related factors. Verf.-Referat (geändert)