The aim was of the work to determine the influence of alcohol -present 11 • beer -on reaction time to acoustic and visual stimulus for middle-aged men. The research group had 8 people aged 31 to 41 years. For measuring alcohol in breath was used alcohol tester Dräger 7410. Reaction time was measured using reaktometer measurent accuracy to 1 millisecond. To significant increase in average reaction time was at 0.40 per mille alcohol level in breath after drinking three beers. To increase of reaction time at the initiative of sound from 236 ms to 247 ms -11 ms, significant increase was at the initiative of the optic of 294 ms to 459 ms -165 ms. After drinking the fifth pint of served beer (0.66 per mille of alcohol in the breath) it was registered continuing increase of reaction time at the initiative of the sound of the original values of 236 ms to 276 ms -41 ms, at the initiative of the optical surge, against defaults without the presence of alcohol in breath to 515 ms from 294 ms value -an increase of 221 ms. Alcohol already in relatively small amounts has a significant influence on the change of reaction time. Seemingly small increase of the reaction time may have in critical situations immense consequences.

The aim of this study was to determine the effect of caffeine on the reaction time on the optic stimulus in men. The study group had 10 people aged 25 to 30 years. The reaction time was measured with a precision measuring meter at 1 millisecond. Caffeine was administered with 100 mg and 200 mg tablets. After 100 mg of caffeine after an hour there was decrease from 352 ms to a value of 336 (decrease by 16 ms, 4,5%). After two hours there was again a slight decrease of 8 ms to 328 ms (total of 24 ms, 6,8%). Caffeine reduces the reaction time and its effect is evident for an hour and two hours after administration. After finding the quiescent values of rection time of 348 ms, 200 mg of caffeine was given, and the subsequent measurement after 1 hour showed a reducing in the reaction time to 328 ms (20 ms). Measurement after two hours showed approximately the same value of 332 ms -as after one hour.

The aim of the work was to determine the effect of energy drink -Red Bull on the reaction time on the optical stimulus in men. The study group consisted of 10 people aged 25 to 30 years. The reaction time was measured with a reactometer with a measurement accuracy of 1 millisecond. After resting the reaction time averages for 337 ms, a 250 ml Red-Bull dose was administered, and subsequent measurement after 1 hour showed a reduction in the average reaction time to 325 ms (by 12 ms, 3.6 %). Measurements after two hours showed approximately the average same values -325 ms. After administration of 500 ml of Red Bull, the reaction time decreased from a average rest value of 336 ms to aa average value of 325 after one hour (a decrease of 11 ms, 3.3 %). After two hours of exposure to the stimulants in Red-Bull, the reaction time was again maintained the same level -an average of 326 ms.

The aim of this paper is to analyse the ideas and principles that stimulated the thinking of Miroslav Tyrš, one of the most popular public figures in the Czech national and social life in the 1860s who endeavoured to devevelop the awareness of unity and mutuality motivated by the physical perfection and fitness of Ancient Greeks. His whole life and thought was inspired by the skills of his admired Olympic champions and by ancient civilisation. Not only did he author the Czech gymnastics terminology, but he also became the chief promoter of the Sokol, a sports club which helped to enhance the nation's physical fitness. A patriot and experienced instructor, Tyrš was above all a scholar -philosopher, later on, mainly aesthetician and art critic who formulated his ideas under the strong influence of the 19th-century positivism and irrationalism, which had to respond to such landmarks in sciences as Darwin's startling teaching about evolution based on natural selection and struggle for existence and J. G. Mendel's lectures on trait heredity or the formulation of the theory of unity between plant and animal cells. The German philosopher Arthur Schopenhauer's ideas about the blind unconscious will were in Tyrš's thought coupled with the willpower of a strong able-bodied individual to exist, the will to live and survive. In Tyrš, Darwin's theory as applied to society never assumed the extreme socially Darwinist character, but employed competitiveness to defend the optimistic vision of progress and development.

Among the notable figures respected for great versatility in the life of 20th-century České Budějovice, one can hardly overlook Václav Piloušek. Consistently successful in affecting the town's political as well as social and cultural, and especially its sports life, his activities often extended beyond the regional bounds and after the war it is not surprising to come across his name in the renewed Czech radio journalism, in particular related to Czech ice-hockey. In relative obscurity then remains Piloušek's resistance engagement during World War II when he unflaggingly supported Czech patriotic initiatives and so his share in the formation of the Regional National Council in the last days of war was just logical delivery of his conviction and endeavour to recover freedom. He joined in the postwar reconstruction in several spheres without leaving his position in health insurance company. Specifically, Václav Piloušek worked in the municipal authority of České Budějovice; moderated the local broadcasting of the Czechoslovak Radio; organised ice-hockey matches; trained the AC Stadion České Budějovice team and spared no effort to provide his players with synthetic ice rink; the latter efforts mounted by him and other enthusiasts were crowned with success in 1945-1946 Piloušek never abandoned his activities, especially his sport pursuits, despite the negative impact exerted on his professional career by the social and political changes of the 1950s.