The contribution of vision in dynamic spontaneous sways of male classical dancers according to student or professional level
Identifieur interne : 002649 ( Main/Exploration ); précédent : 002648; suivant : 002650The contribution of vision in dynamic spontaneous sways of male classical dancers according to student or professional level
Auteurs : Eveline Golomer [France] ; Philippe Dupui [France] ; Philippe Séréni [France] ; Hughes Monod [France]Source :
- Journal of Physiology - Paris [ 0928-4257 ] ; 1999.
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Abstract
We investigated the involvement of vision in the regulation of dynamic equilibrium in male children and young adults performing a physical activity requiring a high level of spatial skill: self-induced body sways of ballet dancers on a free unstable platform, 45 professional male dancers (Paris Opera) participated in the study. They included two student groups (beginners and confirmed) and two performer groups (adolescent and adult). They maintained their equilibrium on the platform under different visual and position conditions. The displacements of the seesaw platform were calculated from accelerometer measures. Fast Fourier transform processing of stabilograms allowed spectral frequency analysis. The total spectrum energy and the energies of the three frequency bands (0–0.5 Hz, 0.5–2 Hz, 2–20 Hz) were determined. For all groups, ANOVA indicated that values were higher for eyes-closed than for eyes-open conditions. The visual dependence differed according to age: for 14-year-old students the postural control for dynamic equilibrium was less visually dependent than for 11-year-old students. The 18-year-old dancers, although professional, were more dependent on vision than 14-year-old student dancers. These 18-year-old dancers were still adolescent because they had recently undergone growth acceleration which could disturb their proprioceptive references and internal body representations. Thus, visual input may dominate over the other sensory inputs in the regulation of postural control.
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DOI: 10.1016/S0928-4257(99)80156-9
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Paris</title><title level="j" type="abbrev">PHYSIO</title><idno type="ISSN">0928-4257</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1999">1999</date><biblScope unit="volume">93</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="233">233</biblScope><biblScope unit="page" to="237">237</biblScope></imprint><idno type="ISSN">0928-4257</idno></series><idno type="istex">5CC451E096579E2228A2F9C01235908B5A89E6BE</idno><idno type="DOI">10.1016/S0928-4257(99)80156-9</idno><idno type="PII">S0928-4257(99)80156-9</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0928-4257</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>body sway</term><term>dynamic equilibrium</term><term>growth</term><term>male dancer</term><term>vision</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We investigated the involvement of vision in the regulation of dynamic equilibrium in male children and young adults performing a physical activity requiring a high level of spatial skill: self-induced body sways of ballet dancers on a free unstable platform, 45 professional male dancers (Paris Opera) participated in the study. They included two student groups (beginners and confirmed) and two performer groups (adolescent and adult). They maintained their equilibrium on the platform under different visual and position conditions. The displacements of the seesaw platform were calculated from accelerometer measures. Fast Fourier transform processing of stabilograms allowed spectral frequency analysis. The total spectrum energy and the energies of the three frequency bands (0–0.5 Hz, 0.5–2 Hz, 2–20 Hz) were determined. For all groups, ANOVA indicated that values were higher for eyes-closed than for eyes-open conditions. The visual dependence differed according to age: for 14-year-old students the postural control for dynamic equilibrium was less visually dependent than for 11-year-old students. The 18-year-old dancers, although professional, were more dependent on vision than 14-year-old student dancers. These 18-year-old dancers were still adolescent because they had recently undergone growth acceleration which could disturb their proprioceptive references and internal body representations. 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