[Final blood lactate concentration after incremental test and aerobic performance].

The aim of the study was to check the hypothesis that elite endurance athletes (junior and national team) show the decreased final blood lactate concentration after incremental test till exhaustion with increased aerobic performance level. 20 physical active men and 45 elite middle and long distance endurance athletes (speed skaters, triathletes, cross country skiers) participated in the study. Significant negative correlations (r = -0.

[Association of the mitochondrial transcription factor (TFAM) gene polymorphism with physical performance of athletes].

The aim of the study was to investigate allelic distribution of the mitochondrial transcription factor gene (TFAM) Ser12Thr polymorphism in athletes (n = 1537) and controls (n = 1113), and to find interrelation between genotypes and aerobic capacity in rowers (n = 90). Genotyping was performed by restriction fragment length polymorphism analysis. Aerobic capacity (maximal oxygen consumption (VO2max) and maximal power production capacity (Wmax)) was determined using an incremental test to exhaustion by rower ergometer.

[The analysis of PPARGC1B gene polymorphism in athletes].

The aim of the study was to investigate allelic distribution of the peroxisome proliferator-activated receptor gamma coactivator 1beta gene (PPARGC1B; Ala203Pro polymorphism) in athletes (n = = 1535) and controls (n = 1113), and to find interrelation between genotypes and aerobic performance of athletes. Genotyping was performed by restriction of the fragment length polymorphism. Aerobic capacity was determined using incremental test to exhaustion by rower ergometer.

Association of the VEGFR2 gene His472Gln polymorphism with endurance-related phenotypes.

Vascular endothelial growth factor receptor 2 (VEGFR2) is essential to induce the full spectrum of VEGF angiogenic responses to aerobic training. In the present study, we examined the impact of the functional His472Gln polymorphism of the VEGFR2 gene on elite athlete status, endurance performance and muscle fibre type composition. Four hundred and seventy-one Russian athletes were prospectively stratified into four groups according to event duration, distance and type of activity, covering a spectrum from the more endurance-oriented to the more power-oriented.

[Dry immersion effects on the mechanisms of metabolic-reflex regulation of hemodynamics during muscular work].

Effects of 4-d dry immersion on metabolic-reflex regulation of hemodynamics were evaluated during local static work (30% of maximum voluntary effort) of the talocrural extensors. One group of immersed test-subjects received low-frequency electrostimulation of leg muscles to offset the immersion effect on EMG of working muscles. Metabolic-reflex regulation was evaluated through comparison of cardiovascular responses to physical tests with and w/o post-exercise vascular occlusion.