Document Detail

Differences in size, strength, and power of upper and lower body muscle groups in young and older men.
MedLine Citation:
PMID:  15814855     Owner:  NLM     Status:  MEDLINE    
We compared muscle thickness, torque, normalized torque (torque/muscle thickness), and power at 1.05 rad/s and 3.14 rad/s in flexor and extensor muscles of the elbow and knee, and in ankle plantar flexors in young (n=22, 18-31 years) and older (n=28, 59-76 years) men. Young men had greater muscle thickness for all muscle groups (p<.01), except elbow extensors, which were similar to older men. Young men had greater torque and power at both velocities for all muscle groups (p<.01), and greater normalized torque at both velocities for the elbow extensors and knee flexors and at the fast velocity for knee extensors. Relative to young mean values, muscle thickness, and torque, normalized torque, and power in the older group were most affected for lower-body measurements, especially at the fast velocity. Torque, normalized torque, and power (especially at fast velocities), and muscle thickness in the lower body are affected more by aging than are upper body measures in men.
Darren G Candow; Philip D Chilibeck
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The journals of gerontology. Series A, Biological sciences and medical sciences     Volume:  60     ISSN:  1079-5006     ISO Abbreviation:  J. Gerontol. A Biol. Sci. Med. Sci.     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-04-07     Completed Date:  2005-06-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9502837     Medline TA:  J Gerontol A Biol Sci Med Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  148-56     Citation Subset:  AIM; IM    
87 Campus Drive, College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada S7N 5B2.
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MeSH Terms
Aging / physiology*
Middle Aged
Motor Activity / physiology
Muscle, Skeletal / anatomy & histology*,  physiology*

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