The use of passive drag to interpret variation in active drag measurements

B Mason; Danielle Formosa; V Raleigh

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The use of passive drag to interpret variation in active drag measurements

Conference paper

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The use of passive drag to interpret variation in active drag measurements

B Mason, Danielle Formosa and V Raleigh

Proceedings of the 27th Conference of the International Society of Biomechanics in Sports, pp.1-4

International Symposium of Biomechanics in Sports, XXVII (Limerick, Ireland, 17-Aug-2009–21-Aug-2009)

University of Limerick

2009

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Abstract

Human Movement and Sports Science

Biomechanics

swimming

passive drag

active drag

propulsive force

This study investigated if a measure of mean passive drag could explain the huge differences in propulsive force required by different swimmers to swim at a similar high velocity. Nineteen elite male and female national freestyle swimmers were subjects. The subject's mean active and passive drag was measured at each swimmer's top swimming pace. Stepwise regression analysis was used in the analysis. Passive drag was accepted into the equation to calculate mean propulsive force, prior to velocity being rejected. The correlation coefficient for the relationship between mean propelling force and mean passive drag was 0.77. This was statistically significant at the p<0.001 level and explained 59% in the variance of mean propulsive force that swimmers need to produce to reach their top swimming pace. Clearly, a measure of the swimmer's passive drag does provide an explanation for the huge differences in propulsive force required by swimmers to be competitive in the free swim aspect of races.

Details

Title: The use of passive drag to interpret variation in active drag measurements
Authors: B Mason (Author) - Australian Institute of Sport
Danielle Formosa (Author) - Australian Institute of Sport
V Raleigh (Author) - Australian Institute of Sport
Contributors: Andrew J Harrison (Editor)
Ross Anderson (Editor)
Ian Kenny (Editor)
Publication details: Proceedings of the 27th Conference of the International Society of Biomechanics in Sports, pp.1-4
Conference details: International Symposium of Biomechanics in Sports, XXVII (Limerick, Ireland, 17-Aug-2009–21-Aug-2009)
Publisher: University of Limerick
Date published: 2009
ISSN: 1999-4168
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Behavioural Sciences - Legacy
Language: English
Record Identifier: 99450110102621
Output Type: Conference paper

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