Date of Award

Spring 5-1-2003

Document Type

Thesis

Degree Name

Master of Arts (MA)

Department

Physical Education

First Advisor

Frank Bell

Second Advisor

Blanche W. Evans

Abstract

This study examined women's 100 rn hurdle technique modifications over the proposed hurdle height of 91.4 ern compared to the current hurdle height of 84.0 ern. The technique modifications were determined by the kinematic variables composed of linear displacements and angular displacements, and the performance variables composed of velocity measures and timing information. Three women collegiate 1 OOrn hurdlers at Indiana State University and one post collegiate hurdler training at Indiana State University volunteered for the study. The athletes finished a six-week conditioning program prior to the start of hurdle training. The athletes were given two weeks or four hurdle practice days at the current hurdle height and four weeks or eight hurdle practice days at the proposed hurdle height. Each athlete performed four trials over four hurdles for each hurdle height where the third hurdle clearance was filmed. The three fastest trials for each subject and condition were analyzed. The videotaped images were captured, digitized, transformed, and evaluated using the Ariel Performance Analysis System (AP AS). The study concluded that the center of mass (CM) in the proposed hurdle height trial was lower at takeoff, higher at the peak and closer to the hurdle at the peak CM height due to the fact that lead leg hip angles and the trail leg hip angles decreased. The athletes were in an ideal sprint position at the landing for the proposed hurdle height as seen with the smaller reach distance and larger lead leg knee angle. The data did not suggest that a change in the hurdle spacing would be necessary.

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