Effects of anaerobic fatigue on postural control in taekwondo practitioners
Journal Title: Journal of Combat Sports and Martial Arts - Year 2012, Vol 3, Issue 2
Abstract
[b]Introduction. [/b]Sport training forms and develops specific abilities and motor skills (strategies). It involves an alternating application of training loads and rest intervals. Static postural control determines the effectiveness of human motor function in upright stance. Fatigue, on the other hand, resulting from physical activity, is manifested by a lower performance level and affects an athlete’s movement accuracy and speed as well as endurance. The aim of the study was to examine the effects of physical exercise (fatigue) on athletes’ static postural control by measuring the mean velocity of body sway.[b]Material and methods.[/b] Twelve taekwondo practitioners took part in measurements of their body balance control. The stabilographic measurements were carried out with the use of a force platform. Postural control was measured in four tests: with the eyes open and with the eyes closed, pre- and post-exercise (Wingate test).[b]Results.[/b] Mean values, mean velocity of body sway taekwondo competitors in traffic levels, in control anterior-posterior plane before the Wingate test: eyes open 12,31 ± 6,1 [mm/s], eyes closed: 13,61 ± 2,9 [mms]. Mean velocity after the Wingate test eyes open 15,39 ± 8,5 [mm/s], eyes closed 18,22 ± 6,2 [mm/s]. The mean values mean velocity in control medial-lateral plane before the Wingate test: eyes open 7,22 ± 2,3 [mm/s] eyes closed 8,74 ± 2,4 [mm/s], and after the Wingate test eyes open 8,91 ± 2,1 [mm/s], eyes closed 10,14 ± 2,9 [mm/s].[b]Conclusions. [/b]Results of the study show that intensive physical exercise has an adverse effect on dynamics of body control. The impairment of erect body position is more pronounced in sagittal plane. In state of fatigue eye sight is an important factor of stable body posture control.
Authors and Affiliations
Bożena Wojciechowska-Maszkowska, Zbigniew Borysiuk, Jacek Wąsik, Paweł Janisiów, Dariusz Nawarecki
Keywords
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