Dynamic analysis of the foot load during gait in professional ballet dancers
Authors:
Teplá Lucie; Procházková Markéta; Svoboda Zdeněk; Janura Miroslav
Authors‘ workplace:
Katedra přírodních věd v kinantropologii, FTK UP Olomouc, vedoucí prof. RNDr. Miroslav Janura, Dr.
Published in:
Pracov. Lék., 66, 2014, No. 1, s. 33-39.
Category:
Original Papers
Overview
Introduction:
Professional ballet dancers could be compared to high-performance athletes due to great demands of their professions. Any physical activity performed at a high level affects musculoskeletal system. The adequate care of the movement system to prevent these negative consequences has been neglected in professional dancers. Even light injuries of movement system can cause inability to work. Therefore the active career of ballet dancers is relatively short. Most dancers finish their professional careers between 30–40 years of age. But the high ballet workload leaves the impact on the musculoskeletal system that remains for the rest of their lives. Undesirable effects of ballet training can be also reflected in performance of common daily activities like walking. Finding these differences using biomechanical analysis of locomotion is essential for prediction of injuries. The aim of this study was to determine the influence of long-term ballet training on the foot load and on performance of gait.
Methods:
Thirteen professional dancers from the Moravian Theater in Olomouc (mean age 24.1 ± 3.8 years) participated in the research. The control group consisted of 13 participants (mean age 26.1 ± 5.3 years). The components of the ground reaction force in the stance phase of the gait cycle were recorded using the Kistler 9286AA force platform. The group of dancers performed normal walking followed by ballet walking. The control group performed only normal walking under the same conditions. Three gait cycles were analysed.
Results:
The foot load in the stance phase of the gait in ballet dancers is different than in the common population. In the dancers there was a significantly prolonged (p < 0.05) stance phase, a greater foot load in the medial direction and smaller differences between the two force peaks in the vertical direction.
Conclusion:
The different dynamic parameters of the gait in professional dancers are caused by negative effect of ballet dancing on musculoskeletal system resulting in its overload and introducing a potential risk for injuries. This is a reason to improve care of the movement system in professional ballet dancers.
Klíčová slova:
gait – ballet dance – biomechanical analysis – foot load – musculoskeletal system injury
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