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Effect of caffeine on maximal strength of the complex exercises
Šťastný, Daniel ; Třebický, Vít (advisor) ; Petr, Miroslav (referee)
Title: Effect of caffeine on maximal strength of the complex exercises Objectives: The main aim of this theses is to investigate caffeine's effect on the maximum strength of the deadlift exercise. The sub-objectives of the thesis are to test whether the magnitude of the effect of caffeine differs between the upper half of the body compared to the lower half, and also whether caffeine has an effect on the production of maximal strength after insufficient rest. Methods: The randomized double-blind study consisted of 1 baseline and 2 experimental sessions . At the start of the experimental sessions, participants were given either caffeine (3 mg/kg) or placebo 60 min before testing. In a randomized order, maximal isometric strength with sufficient rest between reps was measured for the deadlift (IMT) and benchpress (IBP) exercises. Subsequently, maximal isometric strength was measured for the isometric mid-thigh (IMTP) exercise after insufficient rest. A total of 36 healthy resistance-trained men habituated to caffeine consumption participated in this study Results: RM ANOVA showed that caffeine increased performance at IMT, compared to placebo (d = 0.229 [0.61, 0.397]), but not compared to baseline. For the IBP exercise, caffeine has no effect compared to placebo, but baseline session was...
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The comparative study of predication equations for value calculation 1-RM at the squat and the dead lift.
Radovnický, Jiří ; Fedák, Josef (advisor) ; Petr, Miroslav (referee)
Titel: The comparative study of predication equations for value calculation 1-RM at the squat and the dead lift. Aim: To evaluate the most exact equation for the calculation 1-RM on the basis of comparation of extracted data with predication equations at the squat and the dead lift. Research complex: The research complex is created by the soldiers of Army of Czech Republic. They are the men at the age from 20 to 40 with health classification A. Used methods: The comparative method with the using of experimental testing. Results: By the mutual comparation of data we have found out, that the most exact predication equation for the calculation 1-RM in a squat or in a dead lift is from the authors O'Conner et al. Squat was predicted with correlation coefficient r = 0.975 and deadlift with a value of r = 0.951. Keywords: sqaut, dead lift, 1-RM, prediction equation, correlation coefficient.
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Compensatory exercise for powerlifting athletes
Karásková, Petra ; Kejhová, Eva (advisor) ; Kajzar, Jiří (referee)
BACHELOR THESIS ABSTRACT First name and surname: Petra Karásková Supervisor: Ing. Eva Kejhová Title of the bachelor thesis: Compensatory exercise for powerlifting athletes Abstract: This bachelor thesis deals with the topic of using compensatory exercise for powerlifting competitors. In the theoretical part compensatory exercise, powerlifting, the biomechanics of its individual disciplines, injuries in powerlifting and deep stabilization system was described. The practical part includes case reports of two patients. The target group consist of male competitors in powerlifting. Two patients, with pain in the low back area, were participating in total seven weeks of therapy. The therapy occurred one to two times a week. The results were evaluated on the basis of subjective score of pain and objectively using tests on deep stabilization system by Kolář. PhysioSensing was used as another objective method to evaluate the results, where static analysis, limits of stability and weight distribution on the lower limbs at different degrees of flexion in the knee joints was measured. The aim of the bachelor thesis is to map available literature related to compensatory exercise in relationship with powerlifting. Furthermore, raising awareness among powerlifters about the possibilities of prevention and compensation and...
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Influence of caffeine on strength performance
Jílková, Anna ; Vilikus, Zdeněk (advisor) ; Petráková Doležalová, Radka (referee)
This bachelor thesis is divided into theoretical and practical part. The theoretical part is divided into several chapters which deal with general properties of caffeine, its structure, metabolism, occurrence and effects on human organism. A special chapter deals with sports issues and the use of caffeine in sports. The practical part includes individual research into the influence of caffeine on the strenght performance and on the human organism. The aim of this work was to find out whether caffeine shows ergogenic effects at a strenght performance of 1 RM. For this, an experiment was used in which the participants underwent two tests, in one using caffeine 3 mg / kg body weight, in the other using placebo. The challenge was to lift as much weight as possible for one maximum repetition (1RM) in bench press and deadlift exercises. A total of 24 people, 17 women and 7 men with an average age of 27 years and an average BMI of 23.8 underwent the experiment. The test results showed an average improvement of 2.3 kg for deadlift and 0.3 kg for bench press. However, these values are not statistically significant (p = 0.253 and p = 0.775). Key words: caffeine, strenght performance, dietary suplements, deadlift, bench press
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The comparative study of predication equations for value calculation 1-RM at the squat and the dead lift.
Radovnický, Jiří ; Fedák, Josef (advisor) ; Petr, Miroslav (referee)
Titel: The comparative study of predication equations for value calculation 1-RM at the squat and the dead lift. Aim: To evaluate the most exact equation for the calculation 1-RM on the basis of comparation of extracted data with predication equations at the squat and the dead lift. Research complex: The research complex is created by the soldiers of Army of Czech Republic. They are the men at the age from 20 to 40 with health classification A. Used methods: The comparative method with the using of experimental testing. Results: By the mutual comparation of data we have found out, that the most exact predication equation for the calculation 1-RM in a squat or in a dead lift is from the authors O'Conner et al. Squat was predicted with correlation coefficient r = 0.975 and deadlift with a value of r = 0.951. Keywords: sqaut, dead lift, 1-RM, prediction equation, correlation coefficient.
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