european college of sport science

Saturday, June 27th, 2009
application ensuring body structure visual deviation smoothing, posture correcting, satisfying the need of scoliotic patients in motor
activity, reducing psychological stress caused by cosmetic body deformity. The differentiated analysis of functional correction of infantile
scotiotic disease (different severity levels) was made. The necessity of use of a new method applying different physical culture devices
was justified. It is based not on prohibiting but on accurately dosing of physical load according to structure analysis of spine motor functions,
posture pathologic stereotypes (sitting, stretching and walking manners), physical development and exercise performance assessments
at different ontogenesis stages. The method is used to prevent evident body deformations disabling young women, limiting
their genetic capacities as for reproductive performance and causing psychological stress.
Conclusions.
1. Sanative physical exercise valuation assumption was baed on initial importance of motor-viscerogenic reflex. Bilateral communication
of motor and vegetative activities were not equal in the study analysis: the motor function was considered to be the fundamental.
2. The force of movement, its adequate rate and direction were used to solve the set problems. Whereby, we applied the most conformable,
biologically justified methods of stimulating of adaptive, protective and compensatory organism properties to prevent and treat
scoliotic processes.
3. The application of the present study results in the children`s sanitary and pedagogical institutions (secondary and high schools, colleges,
heal-improving summer camps, etc) as well as domiciliary helped to obtain efficient vertebral deformity (kyphoscoliosis)
prevention and correction at the stage of intense bone growth, as well as rehabilitation of children and teenagers with progressing
scoliotic disease in different ontogenesis periods.
THE PARAMETERS OF MULTISEGMENTAL MONOSYNAPTIC RESPONSES OF LEG MUSCLES IN SUBJECTS WITH LUMBAR
NERVE COMPRESSION
ANDRIYANOVA, E.
VELIKIYE LUKI STATE ACADEMY OF PHYSICAL EDUCATION AND SPORTS
Introduction: The subject of the present study is condition of patients with signs of lumbar nerve compression. The disorder is widespread
among athletes who perform exercises loading the lumbar area.
Methods: The reflex motor responses of 16 symmetrical leg muscles (m. biceps femoris, m. vastus lateralis, m. rectus femoris, m. medial
head of the gastrocnemius, m. soleus, m. tibialis anterior, m. extensor digitorum brevis, m. flexor digitorum brevis) were evoked percutaneously
by electric stimulation of the spinal cord at the L2- L3-L4 level in condition of rest (G.Courtine, S.J. Harkema, Ch.J Dy et al., 2007).
Results: The research revealed a significant decrease of multisegmental monosynaptic responses’ (MMRs) maximal amplitude of the left
and right m. soleus in comparison with that of healthy subjects. It testifies that in the background of the studied disorder it is reflex excitability
of alpha-motor neurons of the muscles with the greatest amount of the slow motor units that is low. And m. soleus is the slowest of
all and it is distal to the compression area.
It is evident that there is an electric impulse speed decrease in monosynaptic nerve circuits of the studied shin and foot muscles which
are more distal in comparison with thigh muscles. It should be noted that all the muscles with statistically significant increase of the latent
period of MMRs, compared with the control group parameters, have a similar function, they are all flexors either of shin, feet or toes, and
besides they have a great number of slow motor units.
The significant increase of the MMRs’ threshold for most of the studied muscles allows to assume that lumbar nerve compression mostly
affects low threshold afferents of the corresponding peripheral nerves, innerving both proximal and distal leg muscles. The large muscles,
regardless of their composition and function, have a higher degree of impairment.
Discussion: The results of the research allow to suppose the presence of a number of inter- and intra - muscle coordination peculiarities
in the background of lumbar nerve compression. Consequently, they lead to a change of voluntary motor pattern.
References
Gregoire Courtine, Susan J. Harkema, Christine J. Dy, Yuri P. Gerasimenko, Poul Dyhre-Poulsen (2007). Modulation of multisegmental
monosynaptic responses in a variety of leg muscles during walking and running in humans. The Journal of Physiology, 582 (3), 1125–1139.
THE EFFECT OF RESTRICTING THE PERCEPTUAL TASK IN TEMPORAL ORGANIZATION OF THE SWIMMING CRAWL:
SURFACE CHARACTERISTICS
BRITO, C.A.F., BELVIS, W.C., OLIVEIRA, M.
UNIVERSIDADE MUNICIPAL DE SÃO CAETANO DO SUL (USCS)
Introduction: Research into motor coordination has sought to discuss the occurrence of temporal organization in motor skills, in order to
understand the nature of their representations (variances and constants). However, there have not been studies that manipulate perception
maintaining surface characteristics constant. This study’s hypothesis was to see if there are significant differences between the flexible
parameters of the crawl, maintaining the stroke’s rhythm and distance after restricting the task in the field of perception. The objective
of this study was to observe how restricting the ability to swim can influence the superficial parameters of the crawl.
Method: Descriptive and experimental methods were used. There was mixed random-systematic sampling among 5% of high-ability
swimmers (n=6) from São Caetano do Sul enrolled with DETUR in 2008 (n=106). A Seiko chronometer watch with a 100 (25 meter) lap
memory was used. The process was also filmed. Perturbation was carried out by light shone onto the retina, forming a configuration
according to the degree of complexity (paper was used in swimming goggles), at a natural rhythm. The option of the parametric test
statistic was allowed by verifying normality of distribution through the Kolmogorov-Smirnov test. Data were analyzed using Mauchly’s Test
of Sphericity and ANOVA was used for repeated measures (Contrast). Probability was 5% (p