Davydov V.V.
Peter the Great St. Petersburg Polytechnical University, St. Petersburg
St. Petersburg State Electrotechnical University LETI named after V.I. Ulyanov-Lenin, St. Petersburg

Zaitseva A.Yu.
Institute for Analytical Instrumentation of the Russian Academy of Sciences, St. Petersburg

Davydov R.V.
Peter the Great St. Petersburg Polytechnical University, St. Petersburg
The Bonch-Bruevich Saint Petersburg State University of Telecommunications

Mazing M.S.
Institute for Analytical Instrumentation of the Russian Academy of Sciences, St. Petersburg

Objective of the study is to develop new designs of mobile sensors that will allow, in addition to pulse, blood and tissue saturation data, to solve the problem of determining the maximum oxygen consumption without an ergospirometer during training sessions conducted in conditions close to competitions.
Methods and structure of the study. The operating principle of a mobile optical tissue oximetry sensor and the research methodology are presented.
Results and conclusions. The main criteria by which changes in the functional state of the human body are monitored in express mode are noted: the work of the cardiovascular system and oxygen consumption (aerobic performance). Available control methods and devices for their implementation during athlete movement at maximum loads in various sports are considered. Their advantages and disadvantages are noted. A new method for assessing the functional state of the body is proposed using the developed mobile optical sensors, the operation of which does not create significant problems with movement in athletes. The results of a study of a group of young athletes using a new design of mobile optical sensors and an ergospirometer are presented.

Keywords: non-invasive monitoring, aerobic performance, sport, physical activity, optical sensor, functional state of the body.

Благодарности. Исследование выполнено за счет гранта Российского научного фонда (проект № 24-21-00404).

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