The vast majority of theses in this collection are open access and freely available. There are a small number of theses that have access restricted to the WWU campus. For off-campus access to a thesis labeled "Campus Only Access," please log in here with your WWU universal ID, or talk to your librarian about requesting the restricted thesis through interlibrary loan.

Date Permissions Signed

5-24-2019

Date of Award

Spring 2019

Document Type

Masters Thesis

Department or Program Affiliation

Kinesiology

Degree Name

Master of Science (MS)

Department

Health and Human Development

First Advisor

Brilla, Lorraine R., 1955-

Second Advisor

Buddhadev, Harsh H. (Harsh Harish)

Third Advisor

Suprak, David N. (David Nathan)

Abstract

Ballet is an athletic activity that combines aesthetics and artistry with power and ­­­­­skill. One of the most athletic aspects of dance is observed during jumps. Many jumps in ballet involve takeoff from a single leg, but differ in propulsion direction. To assess differences in mechanical demand, two single leg jumps commonly trained in ballet were compared; a saut de chat (SDC) and a temp levé from a step (SLSJ). Fifteen female classically trained dancers with similar number of years of training (13.9 ± 5.0 years) were instrumented with lower body reflective markers and performed each jump three times on a force plate. The marker position data and ground reaction forces (GRF) were captured synchronously at 250 hz and 100 hz, respectively, using a Vicon motion capture system. Peak vertical GRF, average rate of force development (RFD), peak ankle moment and peak ankle power were measured and averaged across trials. Paired t-tests were used to determine differences between the SDC and the SLSJ. When compared to the SLSJ, the SDC displayed significantly higher peak vertical GRF (p = .003), RFD (p = .002), and peak ankle moment and power (p < .001). Analysis of effect size for these differences revealed a large effect size for all variables (Cohen’s d > .80). In conclusion, results of this study indicate the mechanical demand of different dance jumps is diverse, which has implications for performance enhancement, injury prevention, and rehabilitation.

Type

Text

Keywords

Propulsion, Fascial adaptation, Rate of force development

Publisher

Western Washington University

OCLC Number

1103670481

Subject – LCSH

Fasciae (Anatomy); Achilles tendon--Wounds and iFasciae (Anatomy); AchillFasciae (Anatomy); Achilles tendon--Wounds and injuries; Foot--Movements; Muscles--Motility; Ballet dancing; Dancing injuries

Format

application/pdf

Genre/Form

masters theses

Language

English

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.

Download

Included in

Kinesiology Commons

Share

COinS