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Permanent link (DOI): https://doi.org/10.7939/R3794N

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The effects of a short-term plyometrics program on the running economy and Achilles tendon properties of female distance runners Open Access

Descriptions

Other title
Subject/Keyword
ultrasound
training study
distance running
plyometrics
running economy
female runners
tendon stiffness
Achilles tendon
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
de la Cruz, Lemmuel Domingo
Supervisor and department
Syrotuik, Daniel G. (Faculty of Physical Education and Recreation)
Examining committee member and department
Bell, Gordon J. (Faculty of Physical Education and Recreation)
Dhillon, Sukhvinder S. (Department of Radiology and Diagnostic Imaging)
Department
Faculty of Physical Education and Recreation
Specialization

Date accepted
2009-10-09T14:53:38Z
Graduation date
2009-11
Degree
Master of Science
Degree level
Master's
Abstract
This study examined the effects of plyometrics on running economy, performance, and Achilles tendon properties in female distance runners. Seventeen University athletes matched by running economy were randomly assigned to an experimental group that received supplementary plyometrics training (n=9) or a control group that performed run-training only (n=8). Subject attrition led to a final sample of twelve runners (6 experimental, 6 controls). Measurements were made pre-post an 8-week training period. Running economy was measured as oxygen consumption at three submaximal speeds, performance as time to run 3000 meters, and Achilles tendon properties were estimated via ultrasound during ramp, quasi-isometric plantar flexion to maximum on an isokinetic dynamometer. No significant differences were found between the two groups after eight weeks because of poor subject compliance and excessive variability in ultrasound measurements. The results are inconclusive as to the effect of supplementary plyometric training on running economy, performance and Achilles tendon properties.
Language
English
DOI
doi:10.7939/R3794N
Rights
License granted by Lemmuel de la Cruz (lemmueld@ualberta.ca) on 2009-10-02T22:02:31Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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