Teoriya i praktika fizicheskoy kultury №7 2017, pp.44-46

Dr.Biol., Professor R.V. Tambovtseva¹
PhD, Associate Professor V.R. Orel¹
O.V. Zhumaev^1
1Russian State University of Physical Education, Sports, Youth and Tourism (GTSOLIFK), Moscow

Objective of the study was to profile the haemodynamic response rates in the athletes taking varying doses of caffeine in recovery periods following physical loads. Subject to the experiment were 23 high-ranking athletes from different sport disciplines. The study data archived in REODIN-504 System included HR data, stroke volumes, heart cycle phases and blood pressure. These input data were applied to compute the elastic (Ea) and peripheral (R) resistance of the arterial system. The study data and analyses showed statistically significant changes in 20-30 minutes following the caffeine intake including the following: significant HR reduction; significant growth of the stroke volume (SV); and significant reduction of the baroreflectory sensitivity for the peripheral versus elastic resistance rates of the arterial system.

Keywords: central haemodynamics, peripheral and elastic resistance rates, dose, blood pressure, heart rate, physical work, fatigue rate, caffeine.

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