Document Detail


Gender difference in subjective muscle-fatigue sensation during sustained muscle force exertion.
MedLine Citation:
PMID:  18648189     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Muscle endurance is one of the important composite factors to health-related physical fitness. However, previous measurement techniques for evaluation of isometric muscle endurance have been problematic, including rapid increase of blood pressure and heart rate. The progressive workload method which gradually increases the load can reduce subject's physical and mental burden and is safe even for the elderly. This study aims to examine the relationship between exerted force and subjective muscle-fatigue sensation (SMS) of the antebrachial region as well as differences with respect to gender during sustained static gripping. Subjects consisted of 12 males (age 20.8 +/- 1.6 years) and 15 females (age 20.5 +/- 1.3 years) with no history of neuromuscular disorders. They performed sustained static gripping, in which the demand values are gradually increased: 10 sec for 20% maximal voluntary contraction (MVC), 20 sec each for 30, 40, 50, 60, and 70% MVC, and 10 sec for 80% MVC. Demand values (each %MVC) were determined based on each subject's MVC. The forces exerted during at the demand values of 70-80% MVC were significantly lower in males than in females. A gender difference in SMS between male and female subjects occurred at demand values of 40-60% MVC. In short, even when maintaining the same exertion force during demand values of 40-60% MVC, males may experience greater physical fatigue than females.
Authors:
Shinichi Demura; Masakatsu Nakada; Yoshinori Nagasawa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Tohoku journal of experimental medicine     Volume:  215     ISSN:  1349-3329     ISO Abbreviation:  Tohoku J. Exp. Med.     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-07-23     Completed Date:  2008-09-09     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417355     Medline TA:  Tohoku J Exp Med     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  287-94     Citation Subset:  IM    
Affiliation:
Graduate school of Natural Science & Technology, Kanazawa University, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Pressure
Exercise
Female
Hand Strength
Humans
Isometric Contraction
Male
Muscle Contraction
Muscle Fatigue*
Muscles / pathology*
Physical Endurance
Physical Exertion
Sex Factors
Time Factors

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


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