Co-op University of Guelph study finds new measure for stress in overtrained athletes

(University of Guelph) Overload training -- or, training to exhaustion followed by a period or rest and recovery before a race -- is a method used by many endurance athletes in search of a personal best. A new University of Guelph study has found that overtraining might alter firing in the body's sympathetic nerve fibres which might hinder athletic performance.