Document Detail


Changes in power assessed by the Wingate Anaerobic Test following downhill running.
MedLine Citation:
PMID:  17313255     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Few studies have examined the effects of eccentric exercise-induced muscle damage on power despite power being a key performance variable in a number of sporting events. The aim of this study was to examine changes in anaerobic power (30-second Wingate Test), isometric strength of the knee extensors and flexors, muscle soreness, and plasma creatine kinase (CK) activity following downhill running. Eight men performed a 40-minute downhill (-7%) run on a treadmill, and measurements were taken on 6 occasions (2 baseline and 0.5, 24, 72, and 120 hours postrun). A second group of men (n = 5) had the measurements taken on 6 occasions without downhill running and served as a control group. A repeated measures analysis of variance revealed no significant changes in any measures across time for the control group. Following downhill running, significant (p < 0.05) decreases in strength (0.5-24 hours), and significant increases in muscle soreness (0.5-72 hours) and plasma CK activity (0.5-120 hours) were observed. A significant decrease in peak and average power (approximately 5%) was evident only 0.5 hours postrun, and the decrease was smaller in magnitude than that of strength (approximately 15%). These results suggest that power is less affected than strength after eccentric exercise, and the effect of reduced power on sport performance seems negligible.
Authors:
Carmel Nottle; Kazunori Nosaka
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  21     ISSN:  1064-8011     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-02-22     Completed Date:  2007-04-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  145-50     Citation Subset:  IM; S    
Affiliation:
School of Exercise, Biomedical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia. c.nottle@ecu.edu.au
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Anaerobic Threshold
Analysis of Variance
Biomechanics
Creatine Kinase / blood
Humans
Male
Muscle, Skeletal / injuries,  physiopathology*
Running / physiology*
Chemical
Reg. No./Substance:
EC 2.7.3.2/Creatine Kinase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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