Block height influences the head depth of competitive racing starts

Cornett, Andrew C. and White, Josh C. and Wright, Brian V. and Willmott, Alexander P. and Stager, Joel M. (2011) Block height influences the head depth of competitive racing starts. International Journal of Aquatic Research and Education, 5 (2). pp. 174-186. ISSN 1932-9997

Documents
05_Cornett_174-186.pdf
[img]
[Download]
60839303.pdf
[img]
[Download]
Request a copy
[img]
Preview
PDF
05_Cornett_174-186.pdf

268kB
[img] PDF
60839303.pdf - Whole Document
Restricted to Repository staff only

160kB

Official URL: http://search.ebscohost.com/login.aspx?direct=true...

Abstract

The purpose of this study was to determine whether or not starting block height has an effect on the head depth and head speed of competitive racing starts. Eleven experienced, collegiate swimmers executed competitive racing starts from three different starting heights: 0.21 m (pool deck), 0.46 m (intermediate block), and 0.76 m (standard block). One-way repeated measures ANOVA indicated that starting height had a significant effect on the maximum depth of the center of the head, head speed at maximum head depth, and distance from starting wall at maximum head depth. Racing starts from the standard block and pool deck were significantly deeper, faster, and farther at maximum head depth than starts from the intermediate block. There were no differences between depth, speed, or distance between the standard block and pool deck. We conclude that there is not a positive linear
relationship between starting depth and starting height, which means that starts do not necessarily get deeper as the starting height increases.

Item Type:Article
Additional Information:The purpose of this study was to determine whether or not starting block height has an effect on the head depth and head speed of competitive racing starts. Eleven experienced, collegiate swimmers executed competitive racing starts from three different starting heights: 0.21 m (pool deck), 0.46 m (intermediate block), and 0.76 m (standard block). One-way repeated measures ANOVA indicated that starting height had a significant effect on the maximum depth of the center of the head, head speed at maximum head depth, and distance from starting wall at maximum head depth. Racing starts from the standard block and pool deck were significantly deeper, faster, and farther at maximum head depth than starts from the intermediate block. There were no differences between depth, speed, or distance between the standard block and pool deck. We conclude that there is not a positive linear relationship between starting depth and starting height, which means that starts do not necessarily get deeper as the starting height increases.
Keywords:Swimming, Biomechanics, Safety, Swim start, Block height
Subjects:H Engineering > H120 Safety Engineering
C Biological Sciences > C600 Sports Science
B Subjects allied to Medicine > B830 Biomechanics, Biomaterials and Prosthetics (non-clinical)
Divisions:College of Social Science > School of Sport and Exercise Science
ID Code:4377
Deposited By: Sandy Willmott
Deposited On:10 Apr 2011 22:17
Last Modified:05 Dec 2013 10:22

Repository Staff Only: item control page