Effect of caloric deficit and dietary manipulation on aerobic and anaerobic exercise
Deutscher übersetzter Titel: | Auswirkung von kalorienarmer Ernaehrung und Nahrungsmanipulationen auf die aerobe und anaerobe Leistungsfaehigkeit |
---|---|
Autor: | McMurray, R.G.; Proctor, C.R.; Wilson, W.L. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 12 (1991), 2, S. 167-172, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-2007-1024662 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199203049475 |
Quelle: | BISp |
Abstract
Twelve competitive wrestlers restricted their caloric intake (92 kJ/kg FFW/day) for 7 days, using a high (HC) or normal (NC) carbohydrate diet to determine the acute effect of caloric deficiency on aerobic and anaerobic exercise performance as well as growth hormone (hGH) and insulin-like growth factor 1 (IGF-1) levels. The subjects were tested while on a eucaloric diet and at the end of the dietary restriction. Neither the dietary restriction nor composition had an effect on the ability to complete an 8-minute run at 85 of maximal capacity, but both produced an increased fat utilization during the run. The responses to the Wingate Anaerobic Test indicated that the NC group had a significant reduction in total and mean power output (-7 -6, respectively), whereas the HC group maintained all power measures. The caloric restriction, regardless of dietary composition, increased the exercise hGH response more for the NC group than the HC group. IGF-1 levels were significantly lowered by the diet, but the diet composition had no effect. These results indicate that even during caloric restriction, a high carbohydrate diet better maintains anaerobic exercise performance. Furthermore, the composition of the diet appears to have no effect on the resting hGH and IGF-1 responses to caloric deficits. However, carbohydrate composition may have an effect on the hGH response to exercise. Verf.-Referat