Publish in this journal
Journal Information
Vol. 41. Num. 149.January 2006Pages 3-42
Share
Share
More article options
Vol. 41. Num. 149.January 2006Pages 3-42
Study of muscular activity during relevéin first and sixth position
Visits
1122
Núria Massóa, Ana Germána, Ferran Reyb, Lluís Costaa, Daniel Romeroa, Silvia Guitarta
a Biomechanics Laboratoy. EUIF Blanquerna. Ramon Llull University. Barcelona
b Facultat de Ciències de la Salut Blanquerna, Universitat Ramon Llull, Barcelona, Espanya
This item has received
1122
Visits
Article information
Background: To determine differences in muscular activation during relevé. Participants and method: Eighteen classical dancers (aged 14-32 years) participated in this study. Kinetic and cinematic analysis was performed. The degree of plantar flexion achieved and the involvement of distinct muscles were analyzed. The results obtained were compared (Wilcoxon's test) on executing relevé in sixth position ( en parallel) and in correct first position ( en déhors) with respect to first position with foot pronation. Results: A greater range of plantar flexion was achieved in sixth position than in first position, and in correct first position than in pronated first position. The internal gemellus muscle showed greater activity in first position; the abductor muscle of big toe (ABT) en parallel or sixth position and the peroneal muscles and external gemellus muscle in pronated first position. The lateral peroneal muscle showed differences during relevé (in static initial position and the rising phase) and the ABT during the rise to relevé. The internal gemellus muscle showed earlier and slower activation than the external gemellus muscle in plantar flexion during relevé. Discussion: The ABT shows greater activity when the hips are en parallel than when they are turned out ( en dehors). The lower activity of the ABT in first position ( en dehors) may lead to a lack of stability in the longitudinal arch and first ray and consequently to a greater risk of injury. Relevé in sixth position allows greater plantar flexion than that in first position. Pronation of the foot ­ due to faulty technique ­ allows less plantar flexion. The differences found in muscular activity of the lateral peroneal muscle are related to the presence of foot pronation, with pronation producing greater activity.
Apunts Medicina de l'Esport (English Edition)

Subscribe to our Newsletter

Article options
Tools
Cookies policy
To improve our services and products, we use cookies (own or third parties authorized) to show advertising related to client preferences through the analyses of navigation customer behavior. Continuing navigation will be considered as acceptance of this use. You can change the settings or obtain more information by clicking here.