Unipodal performance and leg muscle mass in jumping skills among ballet dancers |
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Authors: | Golomer Eveline Keller Jean Féry Yves-André Testa Marc |
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Affiliation: | Laboratoire Cognition et Motricité, Unité Fonctionnelle de Recherche en Sciences et Technique des Activités Physiques et Sportives, Université Pans René Descartes, France. golomer@ccr.jussieu.fr |
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Abstract: | We examined the vertical jump performance of each leg among 10 right-footed female ballet dancers with 1 yr. of international professional experience (quadrilles: Opera ballerinas). Their mean age was 17.5 yr. (SD=0.3). The maximal height of the unilateral jump was recorded, and muscle mass was evaluated by biphotonic absorptiometry method. Muscle mass and maximal jump height were similar for the two legs. A strong inverse relation was found between the muscle mass of the right leg (67%) and maximal jump height (r=-.81, p<.01) but not for the left leg. These results highlight a functional asymmetry and the effect of motor laterality in dance. |
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