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Wolverhampton Intellectual Repository and E-Theses > Research Institutes > Research Institute in Healthcare Science > Sport, Exercise and Health Research Group > Isokinetic eccentric exercise of quadriceps femoris does not affect running economy.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2436/111441
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Title: Isokinetic eccentric exercise of quadriceps femoris does not affect running economy.
Authors: Paschalis, Vassilis
Baltzopoulos,
Mougios, Vassilis
Athanasios, Jamurtas Z..
Theoharis, Vassilis
Karatzaferi, Christina
Koutedakis, Yiannis
Affiliation: Institute of Human Performance and Rehabilitation, Center for Research and Technology of Thessaly, Trikala, Greece. vpasxal@pe.uth.gr
Citation: Journal of strength and conditioning research, 22 (4):1222-7
Publisher: Human Kinetics Publishers, Inc.
Journal: Journal of strength and conditioning research / National Strength & Conditioning Association
Issue Date: 2008
URI: http://hdl.handle.net/2436/111441
DOI: 10.1519/JSC.0b013e318173da21
PubMed ID: 18545185
Additional Links: http://proquest.umi.com/pqdweb?RQT=572&TS=1284118059&clientId=53702&VType=PQD&VName=PQD&VInst=PROD&PMID=68236&PCID=41315051&SrtM=0&SrchMode=3&aid=1
Abstract: The purpose of this study was to investigate whether running economy is affected by isokinetic eccentric exercise designed to cause muscle damage. Twenty-four young healthy men performed 120 maximal voluntary eccentric actions at each thigh's quadriceps muscle at an angular velocity of 60 degrees .s. The participants were then randomly divided into 2 equal groups, 1 of which exercised 24 hours later, while the other group rested. Muscle damage indicators (i.e., serum creatine kinase, delayed onset muscle soreness, and eccentric, concentric, and isometric peak torque) and running economy indicators (i.e., oxygen consumption, pulmonary ventilation, respiratory exchange ratio, respiratory rate, and heart rate during treadmill running at 2.2 and 3.3 m.s) were assessed prior to and 48 hours following the eccentric exercise. All muscle damage indicators changed significantly in both groups (p < 0.05) in a way suggestive of considerable muscle damage. Running economy indicators of the exercise group demonstrated only an elevation of respiratory rate at 48 hours (p < 0.05) and a tendency to lower economy compared to the resting group. It can be concluded that isokinetic eccentric exercise applied to the quadriceps femoris muscles did not affect running economy 48 hours later and that resting during this period tended to result in more economical running compared to exercising at 24 hours.
Type: Article
Language: en
Keywords: Oxygen consumption
Delayed onset muscle soreness
Isokinetic peak torque
MeSH: Adult
Creatine Kinase
Heart Rate
Humans
Isometric Contraction
Lower Extremity
Male
Muscle, Skeletal
Oxygen Consumption
Physical Education and Training
Respiration
Running
ISSN: 1533-4287
Appears in Collections: Sport, Exercise and Health Research Group

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