Asymmetry of supporting and stabilizing function of the lower extremities in alpine skiers
Journal Title: Antropomotoryka. Journal of Kinesiology and Exercise Sciences - Year 2012, Vol 22, Issue 59
Abstract
[b]Introduction.[/b] Skiing like other sports has its own specific postural requirements for the competitor’s balance. The above specificity also refers to the asymmetry since each ski competition requires efficient mechanisms for bilateral control of athlete’s stability.[b]Aim of the study.[/b] Investigating the asymmetry level of stabilizing function in lower extremities of alpine skiers.[b]Material and methods.[/b] 11 participants, 3 women and 8 men – alpine skiers, were involved in the study aimed at identifying the level of functional asymmetry during stabilometric measurements performed with the use of stabliographic platform CQ Stab.[b]Results. [/b]The measurements reveal asymmetry mainly within the indicators of the frequency of correction foot pressure, the speed of oscillation and the surface area, and distance travelled by COP. Recorded values indicate the predominance of the left lower limb in a stabilizing function. This asymmetry does not manifest itself in distribution of mass but in worse indicators of the stability for this limb, especially in ML plane.[b]Conclusions.[/b] Asymmetry in stabilizing function found in young skiers corresponds to the observation made on not practicing skiing youth and adults. Further studies need to determine the relationship between the level of asymmetry and the effectiveness of a skier during the competition.
Authors and Affiliations
Przemysław Bujas, Dariusz Tchórzewski, Janusz Jaworski
Zróżnicowanie płciowe wielkości wskaźników fizjologicznych na wysiłek o stopniowo wzrastającym obciążeniu u osób uprawiających biegi średnie i długie
[b]Cel pracy.[/b] Celem pracy była analiza wielkości wybranych wskaźników fizjologicznych w aspekcie dymorfizmu płciowego na dwóch poziomach intensywności wysiłku, mianowicie na poziomie progu niekompensowanej kwasicy me...
Percentile values of height and body mass and the body mass index of children and youth aged 6–18 years from Gdansk including under- and overweight definition problem
[b]Aim of the research. [/b]Working out centile norms for height, body mass and body mass index (BMI) in school children and youth in the city of Gdansk as well as comparison of overweight and underweight criteria in pop...
Sprawność motoryczna uczniów w wieku 10–17 lat z wybranych regionów Japonii i Polski
Cel badań. Celem tego opracowania jest ocena poziomu i struktury sprawności motorycznej młodzieży z Górnego Śląska i regionu Nara w Japonii z uwzględnieniem trójczynnikowego modelu rozwoju wg Baltesa.Materiał i metody. M...
Physical ability of secondary school students who take part in physical classes with the ball that arouse empathy
[b]Introduction.[/b] Secondary school students are in the period of adolescence, which is a particular stage of human development. In its final part, this period is characterized by the formation of full motor abilities...
Attitudes towards values of the human body in physical culture
Because of the growth of interests of the researchers in attitudes in physical education, there has been presented in this work a review of Polish and foreign concepts concerning the attitudes towards the body value in t...