Skip Navigation LinksHome > July 1998 - Volume 30 - Issue 7 > Overtraining and glycogen depletion hypothesis
Medicine & Science in Sports & Exercise:
Applied Sciences: Symposium: Training/Overtraining: The First Ulm Symposium

Overtraining and glycogen depletion hypothesis


Section Editor(s): Foster, Carl; Lehmann, Manfred Chairs

Collapse Box


Overtraining and glycogen depletion hypothesis. Med. Sci. Sports Exerc., Vol. 30, No. 7, pp. 1146-1150, 1998. Low muscle glycogen levels due to consecutive days of extensive exercise have been shown to cause fatigue and thus decrements in performance. Low muscle glycogen levels could also lead to oxidation of the branched chain amino acids and central fatigue. Therefore, the questions become, can low muscle glycogen not only lead to peripheral and central fatigue but also to overtraining, and if so, can overtraining be avoided by consuming sufficient quantities of carbohydrates? Research on swimmers has shown that those who were nonresponsive to an increase in their training load had low levels of muscle glycogen and consumed insufficient energy and carbohydrates. However, cyclists who increased their training load for 2 wk but also increased carbohydrate intake to maintain muscle glycogen levels still met the criteria of over-reaching (short-term overtraining) and might have met the criteria for overtraining had the subjects been followed for a longer period of time. Thus, some other mechanism than reduced muscle glycogen levels must be responsible for the development and occurrence of overtraining.

© Williams & Wilkins 1998. All Rights Reserved.


Article Tools


Article Level Metrics

Search for Similar Articles
You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search.

Connect With Us