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The influence of the repeated bout effect on skeletal muscle power production, damage-induced strength loss and fatigue-induced strength loss

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Title: The influence of the repeated bout effect on skeletal muscle power production, damage-induced strength loss and fatigue-induced strength loss
Author: Hess, Adam
Department: Department of Human Health and Nutritional Sciences
Program: Human Health and Nutritional Sciences
Advisor: Power, Geoffrey A.
Abstract: High intensity unaccustomed eccentric contractions result in fatigue and damage, as well as prolonged strength deficits. The relative contribution of fatigue and damage is difficult to tease apart. The repeated bout effect (RBE) is established in its protection of damage and strength loss following a subsequent bout of eccentric contractions but it is unknown whether it protects power production, a more functional measure of dynamic muscle performance. This thesis aims to investigate the influence of the RBE on power production and to determine if the protection from damage will allow for the assessment of fatigue induced strength loss during and following a subsequent bout of eccentric contractions. I found that the RBE protects the rates of torque and velocity development ultimately protecting the production of peak power. Furthermore, the magnitude of protection against damage permitted the assessment of fatigue only related neuromuscular impairments following high intensity unaccustomed eccentric contractions.
URI: http://hdl.handle.net/10214/14259
Date: 2018-09-04
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