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Influence of altitude on physiological parameters in snowboardcross athletes
Samková, Eva ; Gryc, Tomáš (advisor) ; Šteffl, Michal (referee)
Title: Influence of Altitude on Physiological Parameters in Snowboardcross Athletes Objectives: The aim of the study was to investigate the effect of altitude and working load on selected physiological parameters (blood lactate concentration, mitochondrial respiration, muscle blood flow and heart rate) in elite snowboardcross riders. Methods: For data collection we used Moxy monitor, Garmin chest belt and EKF Lactate Scout+. The physiological parameters were assessed at two different altitudes and always before and after the sports exercise. The obtained data were then compared and their differences assessed using the statistical method paired t-test, basic statistical and mathematical methods such as mean and standard deviation and percentages were used to express the difference. Results: We found that altitude does not affect mitochondrial respiration or blood flow in lower limb muscles in snowboardcrossers. Furthermore, we found that altitude has an effect on blood lactate concentration and confirmed the so-called lactate paradox. Heart rate was slightly higher after exercise at higher altitude than at lower altitude. Keywords: Oxygen saturation, heart rate, lactate concentration, testing, altitude
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A Comparison of heart rate, lactic acid production and swimming speed in a flowing channel and a swimming pool
Kozel, Tomáš ; Horčic, Josef (advisor) ; Kovářová, Lenka (referee)
Name of Work Comparison of heart-rate, lactate levels, swimming speed in streamlined (aerodynamic) channel and swimming pool. Goal of Work To determine whether the same swimming speed affects the heart-rate and blood lactate in exactly the same way, in both the aerodynamic channel and in the swimming pool. To check the velocity of water flowing in a streamlined channel. Method Data collection (blood lactate, values of heart-rate, speed of swimming) will be done first in the swimming pool and then in the streamlined channel, the so-called FLUM. Probands will swim progressively faster in swimming sections of equal length. To obtain lactate levels, the invasive method will be used. Cardiac frequency will be obtained from heart-rate monitors, which each proband will have mounted on the body throughout testing. To verify the speed of flowing water, measuring equipment (propellers) borrowed from the Czech Agricultural University Prague, will be used. Results The work provides information on whether there is a difference in values or internal performance when comparing the speed in swimming pools with the speed in a streamlined channel. If so, the researcher will create a formula to convert the swimming speed in the aerodynamic channel to the speed level in a swimming pool. To create a formula that would...
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