Objective of the study was to analyse the peripheral blood circulation in the lower limbs of finswimmers. Subject to the study was an Experimental Group of highly-skilled (Sport Masters and Candidate Sport Masters) finswimmers (n=15 aged 18-23 years) having 9+ years of competitive track records. The Reference Group was composed of 15 volunteers (aged 18-21 years) from the academic body conditioning groups of Tomsk State University. Rheovasography of the lower limbs was performed using Valenta Computerised Test System (made by Neo Company Ltd., Russia) with the subjects` thighs and shins being tested using a bipolar scheme. The study data were statistically processed using the Mann-Witney U-criterion by STATISTICA 12.0 software toolkit. It was found that many rheovasographic lower-limb test rates of the finswimmers were significantly different from those of the Reference Group both at rest and after exercise. On the whole the blood circulation system of the athletes was found better adaptable to physical load, with the adaptation processes including the following: vasodepression and high-intensity arterial blood flow securing higher regional minute volume and better venous return. The RG subjects from the body conditioning groups also showed some adaptation to the physical loads albeit less expressed versus that of the finswimmers. The RG was tested with somewhat hindered venous return with the blood circulation being generally lower than in the finswimmers` group.
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