Characteristics of functional tension of qualified skiers when passing rises of different difficulty
AbstractPurpose: studying of main functional changes in organism of qualified female skiers when passing rises of different difficulty. Materials: 12 female skiers of combined team of Ukraine of 21-34 years’ age were tested. Pedagogic observation included: speed metering (system of GPS- navigation), pulse metering (telemetric register of heart beats rate Polar RS800). In process of ski track passing we registered content of exhaled air (radio-telemetric gas-analytic complex MetaMax 3B, Cortex). Sportswomen fulfilled control passing of competition 6 km distance (2 circles, 3 km each) in classic style on ski rollers. Ski track was determined by coach. In the course of track’s passing we registered indicators of speed and track profile with discreteness 1 sec. Assessment of special workability and realization of functional potentials was determined by characteristics of external breathing at the end of each rise. Results: it was found that the highest correlation belonged to the following indicators: frequency of breathing (r = 0.38); oxygen consumption (r = 0.29); ventilation equivalent by О 2(r = 0.68). We detected high interconnection between length of distance and ventilation equivalent by СО 2 (r=0.61). It was determined that factors of organism’s anaerobic efficiency change according to relief of track. They increase on rises and reduce on descends. With it increase on long rises is much higher than on middle size rises. Conclusions: effectiveness of different difficulty rises’ overcoming depends on potentials of anaerobic mechanisms and their realization that, to certain extent, influence on sport efficiency.
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