Golovachev A.I.
Federal Science Center of Physical Culture and Sport (VNIIFK), Moscow

Kolykhmatov V.I.
Federal Science Center of Physical Culture and Sport (VNIIFK), Moscow

Shirokova S.V.
Federal Science Center of Physical Culture and Sport (VNIIFK), Moscow

Grushin A.A.
Innovation Center of the Russian Olympic Committee, Moscow

Objective of the study: To assess the impact of indicators of maximum aerobic performance of highly qualified 18-20 year old cross-country skiers on the performance efficiency in the main starts at various distances of cross-country skiing in the 2023-2024 sports season.

Methods and structure of the study: The scientific work involved 11 athletes specializing in various types of competitive activity, aged 18 to 20 years, with qualifications from CMS to MS. The study of maximum aerobic performance included an assessment of integral indicators of physical performance, power and efficiency of the oxidative and lactic acid energy systems.

Results and conclusions: It was established that the effectiveness of performances at goal-oriented starts at various distances of cross-country skiing turned out to be significantly dependent on the degree of formation of the absolute and relative (associated with the development of body mass through physical activity) level of maximum oxygen consumption and the intensity of the functioning of the lactic acid energy system, which form the total energy potential involved in ensuring muscle activity.

Keywords: Cross-country skiing, highly skilled athletes aged 18-20 years, aerobic performance, power of oxidative and lactic acid energy systems, sports results, different cross-country skiing distances, correlation relationship.

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