Author

Tracy Danner

Publication Date

1993

Document Type

Dissertation/Thesis

First Advisor

Plowman, Sharon A.

Degree Name

M.S. Ed. (Master of Education)

Department

Department of Physical Education

LCSH

Running--Training||Cycling--Training||Physical education and training||Triathlon--Training

Abstract

The purpose of this study was to evaluate the influence of a preceding intense cycling bout on subsequent running economy in trained female duathletes and triathletes. Thirteen female duathletes and triathletes (age = 27.5 +_ 3.36 yrs.) took part in three testing sessions: (a) measurement of running economy at 169, 177, 196, and 215 m-min-1 and running V0= max; (b) remeasurement of running economy and measurement of cycling V02 max; and (c) a 45- minute cycling bout at 70% of cycling V0= max, immediately followed by measurement of running economy. Intraclass correlation coefficients between Day 1 and Day 2 running economy values were 0.31, 0.63, 0.75, and 0.78 at running velocities of 169, 177, 196, and 215 m-min-1, respectively. A systematic difference occurred at 169 m-min-1 with mean V02 being higher on Day 1 than Day 2 (p. = 0.0097 ), while running economy values were found to be consistent between Day 1 and Day 2 at 177 m-min-1 (p_ = 0.056 ), 196 m-min-1 (p. = 0.043), and 215 m-min-1 (p_ = 0.296) m-min-1. Dependent t_ tests showed significantly higher running economy values [169 m-min-1: t(12) = 7.64, p. = 0.0002; 177 m-min-1 : t(12) = 6.35, p. = 0.0002; 196 m-min-1: t(12) = 5.16, p. = 0.0002; 215 m-min-1 : t_(12) = 4.03, p. = 0.0016], but not blood lactate concentrations [169 m-min-1: t_(12) = -0.84, E. = 0.417; 177 m-min"1 : t(12) = 0.88, p. = 0.394; 196 m-rnin-1: t(12) = -0.29, £ = 0.779; 215 m-min"1 : £(12) = -1.50, e. = 0.158] following the submaximal cycling bout compared to the control condition (Day 2), at each of the four test velocities . The results of this study showed that an acceptable measure of running economy for female duathletes and triathletes can be attained in two test sessions under standardized conditions. Running economy was significantly impaired following a 45-minute intense cycling bout in female duathletes and triathletes, but lactate values remained constant.

Comments

Includes bibliographical references (pages [27]-29).

Extent

69 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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