Fat storage in athletes: Metabolic and hormonal responses to swimming and running
Gespeichert in:
| Deutscher übersetzter Titel: | Fettspeicherung bei Sportlern: Metabolische und hormonale Reaktionen beim Schwimmen und Laufen |
|---|---|
| Autor: | Flynn, M.G.; Costill, D.L.; Kirwan, J.P.; Mitchell, J.B.; Houmard, J.A.; Fink, W.J.; Beltz, J.D. |
| Erschienen in: | International journal of sports medicine |
| Veröffentlicht: | 11 (1990), 6, S. 433-440, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
| Sprache: | Englisch |
| ISSN: | 0172-4622, 1439-3964 |
| DOI: | 10.1055/s-2007-1024833 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU199209048731 |
| Quelle: | BISp |
Abstract
Despite similar rates of energy expenditure during training, it has been suggested that swimmers store greater amounts of body fat than runners. To investigate these discrepancies, eight male swimmers (S) and runners (R) were monitored during 45 min of swimming or running (75 VO2max), respectively, and six triathletes were monitored during swimming (ST) and running (RT). Each group was also monitored during two hours of recovery. Venous blood samples were obtained before exercise, immediately after exercise (0 min) and at 15, 30, 60 and 120 min of recovery. These samples were analyzed for glucose, lactate, glycerol, free fatty acids (FFA), insulin, glucagon, norepinephrine (NE) and epinephrine (E). Expired gases and heart rates (HR) were obtained during exercise and also during recovery. The results suggest that there may be differences in substrate utilization during running and swimming exercise of the same intensity. During recovery, however, neither post-exercise energy expenditure nor fat oxidation favored increased fat storage in swimmers. Verf.-Referat