The effect of shoe heel height and floor incline on the biomechanics of landing from a single leg jump in elite female dancers. Marijeanne Liederbach

ISBN: 9780549794585

Published:

NOOKstudy eTextbook

186 pages


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The effect of shoe heel height and floor incline on the biomechanics of landing from a single leg jump in elite female dancers.  by  Marijeanne Liederbach

The effect of shoe heel height and floor incline on the biomechanics of landing from a single leg jump in elite female dancers. by Marijeanne Liederbach
| NOOKstudy eTextbook | PDF, EPUB, FB2, DjVu, audiobook, mp3, ZIP | 186 pages | ISBN: 9780549794585 | 10.14 Mb

Introduction. The most common acute injury in dance is lateral ankle sprain and women dancers have a 2.2 times greater incidence than their male counterparts. The mechanism of injury is landing from a jump onto a single leg when the ankle is plantarMoreIntroduction. The most common acute injury in dance is lateral ankle sprain and women dancers have a 2.2 times greater incidence than their male counterparts. The mechanism of injury is landing from a jump onto a single leg when the ankle is plantar flexed.

Women dancers jump while wearing high-heeled shoes whereas the men wear flat-soled shoes. Dancers also work on inclined stage surfaces which may alter their postural and joint mechanics. No studies have examined the effect of shoe heel height and floor incline on dance jump landings.-Methods. Kinematic and kinetic data, including electromyographic activity, were collected from 30 women dancers when performing single leg jumps in flat and high heeled shoes onto flat and 3.6 degree inclined surfaces, a floor slope commonly used in Broadway productions. MANOVA tests evaluated effects of shoe and floor on balance, lower extremity muscle activity, joint positions, motions and moments.-Results.

Dancers in high heeled shoes contacted the force plate with significantly greater angles of ankle plantar flexion and inversion, knee extension and varus and hip flexion when compared to flat-soled shoes. They had significantly greater frontal plane angular displacements but significantly less sagittal plane angular displacements during landing- increased muscle activity, eversion moment and time to stabilization of baseline postural sway and a decreased plantar flexion moment.

A shoe-surface interaction effect was found, such that when landing in high-heels on the medial surface compared with the lateral surface, eversion moment and angle of inversion increased and when on the posterior surface compared with the anterior surface, plantar flexion moment decreased while plantar flexion angle increased.-Conclusion. The requirement to wear high heeled shoes while jumping may be an important reason why women dancers suffer more lateral ankle sprains than men.

Floor surface interacts with high heeled shoes to further increase risk.



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