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The effect of muscle relaxation time during intermittent isometric contractions on finger flexors oxygenation
Fílová, Veronika ; Baláš, Jiří (advisor) ; Vomáčková, Helena (referee)
Author: Bc. Veronika Fílová Supervisor: doc. Jiří Baláš, Ph.D. Title: The effect of muscle relaxation time during intermittent isometric contractions on finger flexors oxygenation Objectives: The main aim of this thesis is to evaluate the effect of recovery time during intermittent isometric contractions of the finger flexors on the overall performance and oxygenation of the flexor digitorum profundus muscle in climbers of different performance categories. Methods: 27 climbers were divided into two groups according to current climbing performance (red point (RP) more and less than 7 on the Union Internationale des Associations d'Alpinisme (UIAA) scale). Group No. 1 consisted of 7 men and 6 women with an average performance of 5+/6- on the UIAA scale with an average climbing experience of 4.2 years. Group No. 2 consisted of 7 women and 7 men with an average performance of 8- on the UIAA scale with an average climbing experience of 11.2 years. All climbers completed 4 measurements on a 1D-SAC (Spacelab, Sofia, Bulgaria) climbing dynamometer with simultaneous data measurement using Portamon (Artinis Medical Systems, Einsteinweg, Netherlands) near-infrared spectroscopy (NIRS). During the first visit, the maximal voluntary contraction (MVC) of the finger flexors and the sustained contraction of the...

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