Document Detail

Effect of resistive exercise on muscle damage in water and on land.
MedLine Citation:
PMID:  19387367     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to compare the effects of resistance exercise in water and on land on blood levels of creatine kinase (CK), a known indirect marker of muscle damage. Nine men (age: 23 +/- 1.58 years; weight: 79.37 +/- 11.15 kg; height: 176.33 +/- 4.09 cm), who had not practiced resistance training for at least 6 months before this experiment, performed 3 sets of maximum elbow flexion and extension exercises in water and on land, separated by 2-minute periods of rest. A 10-repetition maximum test was used to load control on land with free weights, and in water the exercise was performed at maximum velocity with aquatic resistance equipment. The duration of the exercise in water was the same as that performed on land, to reproduce the same metabolic route. Plasma CK activity was determined using a commercially available kit (Labtest Enzymatic-UV) before exercise, after exercise, and at 24 and 48 hours after exercise. Significant increases in CK were found at 48 hours postexercise on land (preexercise land: 160.75 +/- 96.05 UxL; 48 hours: 326.87 +/- 240.84 UxL), and significant differences were found between land and water (preexercise water: 147.75 +/- 46.48 UxL; 48 hours: 121.75 +/- 30.86 UxL) for this measure. However, no significant differences were found in water. In conclusion, the water environment influenced the absence of significant muscle damage. This type of exercise protocol may be appropriate for situations in which limited muscle tissue damage is desired.
Patrícia D Pantoja; Cristine L Alberton; Carmen Pilla; Alecsandra P Vendrusculo; Luiz F M Kruel
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  23     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-05-06     Completed Date:  2009-08-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1051-4     Citation Subset:  IM    
Laboratory of Exercise Research, Faculty of Physical Education, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
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MeSH Terms
Analysis of Variance
Arm / physiology*
Athletic Injuries / etiology,  prevention & control*
Creatine Kinase / blood*
Muscle, Skeletal / enzymology,  injuries*
Resistance Training / methods*
Young Adult
Reg. No./Substance:
7732-18-5/Water; EC Kinase

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

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