INFLUENCE OF PERIODIC MODERATE LINEAR ACCELERATIONS OF VARIABLE DIRECTION ON CENTRAL HEMODYNAMICS

It was examined 19 male fencers aged 18 to 24 years , who had sports experience from 8 to 14 years and high sports qualifications in the chosen sport (masters of sports and candidates for masters of sports). Subjects had no significant differences in height and body weight. Linear horizontal acceler...

Full description

Saved in:
Bibliographic Details
Published in:Fiziolohichnyĭ zhurnal 2021-08, Vol.67 (4), p.21-28
Main Authors: Bakunovsky, O.M., Rozova, K.V., Pastukhova, V.A., Portnichenko, V.I., Portnichenko, A.G.
Format: Article
Language:English
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:It was examined 19 male fencers aged 18 to 24 years , who had sports experience from 8 to 14 years and high sports qualifications in the chosen sport (masters of sports and candidates for masters of sports). Subjects had no significant differences in height and body weight. Linear horizontal accelerations were created using a movable platform with a chair, which housed the athlete. Passive movement of fencers on the platform corresponded to their usual parameters of movement on the fencing track during a sports match. It has been shown that the short-term effect of horizontal moderate accelerations of the variable direction when using the functional test (FT) led to small but statistically significant changes in heart rate (HR), stroke volume (SV) and volumetric blood ejection rate (VER). In all subjects, the changes in these indicators after FT were as follows: heart rate decreased slightly, and SV and VER increased. FT revealed that in persons who are accustomed to moving with moderate horizontal linear accelerations of variable direction, the shortterm effect of this factor was accompanied by a tendency to decrease the minute volume of blood flow (MVB) due to decreased of heart rate. Increasing of SV and VER can be considered as an immediate compensatory response aimed at maintaining MVB. Thus, in athletes whose long-term sports activities are associated with the action on the body of periodic moderate horizontal linear accelerations of variable direction, no adaptation to the action of this specified factor is formed.
ISSN:2522-9028
2522-9036
DOI:10.15407/fz67.04.021