Stabilographic features of highly skilled canoe rowers'' Postural regulation of taking into account functional asymmetry

Preferred stand in canoeing is a specialized example of an asymmetric organization of postural control. Maintaining the right or left stand is a private individual representation of the brain lateral organization. The paper presents the study results of vertical fixity of highly skilled canoeists who prefer a left-handed stand aged 17-23 years old. This work reflects the results of a functional asymmetry phenomenon study as one of the main factors of the spatial backbone implementation of rower's stand. Rating profile of functional asymmetry among canoeists who prefer the left stand consists of 6 options, three of which are the most common (82% of the sample), "pppp" ("the absolute right-hander"), "pLpp" and "pLpp". Cross motor asymmetry (right hand - left foot) was observed among 56% of the athletes. The other "right-handed" athletes are characterized by low degree of domination of the right leg. Previous studies have shown that all the "left-handed" canoeists choose left stand, regardless of the dominance of the lower limb. Differences in stand fixity of highly skilled canoeists were determined during their support of the familiar left-sided stand in comparison with the unfamiliar right-sided one. They are characterized by a more perfect adaptation in the regulation system of usual stands, which demonstration is determined by the postural control and the estimated parameters. Activation of any postural control increases fixity of keeping a canoeist's familiar pose both in the frontal and sagittal plane.