Effects of acute exposure to mild simulated hypoxia on hormonal responses in low-intensity resistance exercise in untrained men
Gespeichert in:
| Deutscher übersetzter Titel: | Der Einfluss eines akuten Aufenthalts von untrainierten Männern in leichter simulierter Hypoxie auf hormonelle Reaktionen beim Krafttraining mit niedriger Intensität |
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| Autor: | Ho, Jen-Yu; Huang, Tai-Yu; Chien, Yi-Chieh; Chen, Ying-Chen; Liu, Shui-Yu |
| Erschienen in: | Research in sports medicine |
| Veröffentlicht: | 22 (2014), 3, S. 240-252, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
| Sprache: | Englisch |
| ISSN: | 1543-8627, 1543-8635 |
| DOI: | 10.1080/15438627.2014.915834 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU201502001361 |
| Quelle: | BISp |
Abstract des Autors
This study examined hormonal responses to low-intensity resistance exercise under mild simulated hypoxia. Ten resistance untrained men performed five sets of 15 repetitions of squat exercise at 30 percent of 1RM under normobaric hypoxia (FiO2 = 15 percent) and normoxia in a cross-over and counter-balanced design. Blood lactate (LAC), growth hormone (GH), total testosterone (T) and cortisol (C) were measured at pre-exercise, immediately post-exercise and 15 minutes post-exercise. LAC, GH and T significantly increased immediately after squat exercise in both trials (p < 0.05). While T returned to baseline, GH remained significantly greater at 15 minutes post-exercise. Cortisol significantly decreased immediately after and 15 minutes post-exercise in both trials (p < 0.05). No significant differences were observed between two trials in LAC, GH, T and C. It was concluded that low-intensity resistance exercise performed under mild simulated hypoxia does not induce greater anabolic hormonal responses in resistance untrained men. Verf.-Referat