Justyna Michalska1, Anna Kamieniarz1, Artur Fredyk2, Bogdan Bacik3, Grzegorz Juras1, Kajetan J Słomka4. 1. Department Hunan Motor Behavior, The Jerzy Kukuczka Academy of Physical Education in Katowice, Poland. 2. Department of Gymnastics, Dance and Fitness, The Jerzy Kukuczka Academy of Physical Education in Katowice, Poland. 3. Department of Biomechanics, The Jerzy Kukuczka Academy of Physical Education in Katowice, Poland. 4. Department Hunan Motor Behavior, The Jerzy Kukuczka Academy of Physical Education in Katowice, Poland. Electronic address: k.slomka@awf.katowice.pl.
Abstract
RESEARCH QUESTION: The purpose of this study was to examine the postural sway characteristics of the ballet dance experts in quiet standing and at their limits of stability with an approach not used before in dancers. METHODS: The study was conducted on thirteen female ballet dancers and thirteen non-training females. The data were collected with a use of a force plate. To gain a better insight into the postural control processes, we used the rambling-trembling and sample entropy analyses in the COP data processing. RESULTS: The main findings of the study showed professional dancers to have higher values of postural sway characteristics in comparison to the non-trainees while performing simple motor tasks. Also, higher values of the trembling component in the group of dancers during quiet standing and the inclined positions were observed. This might be a sign of higher capacity of the postural system to deal with postural instability in dancers. IMPORTANCE: Our results confirmed that the visual information is important in the process of postural control of dancers', which is proven by increased dislocations of the COP without visual feedback. The sample entropy results indicated more irregular characteristics of postural sway in ballet dancers representing more automated postural control. The data analysis methods showed high sensitivity to the subtle changes in postural control due to the dance training.
RESEARCH QUESTION: The purpose of this study was to examine the postural sway characteristics of the ballet dance experts in quiet standing and at their limits of stability with an approach not used before in dancers. METHODS: The study was conducted on thirteen female ballet dancers and thirteen non-training females. The data were collected with a use of a force plate. To gain a better insight into the postural control processes, we used the rambling-trembling and sample entropy analyses in the COP data processing. RESULTS: The main findings of the study showed professional dancers to have higher values of postural sway characteristics in comparison to the non-trainees while performing simple motor tasks. Also, higher values of the trembling component in the group of dancers during quiet standing and the inclined positions were observed. This might be a sign of higher capacity of the postural system to deal with postural instability in dancers. IMPORTANCE: Our results confirmed that the visual information is important in the process of postural control of dancers', which is proven by increased dislocations of the COP without visual feedback. The sample entropy results indicated more irregular characteristics of postural sway in ballet dancers representing more automated postural control. The data analysis methods showed high sensitivity to the subtle changes in postural control due to the dance training.
Authors: Bożena Wojciechowska-Maszkowska; Ryszard Marcinów; Janusz Iskra; Rafał Tataruch Journal: Int J Environ Res Public Health Date: 2020-12-29 Impact factor: 3.390