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Skeletal muscle fatigue and endurance in young and old men and women

Lindstrom, B; Lexell, Jan LU ; Gerdle, B and Downham, D (1997) In Journals of Gerontology. Series A: Biological Sciences & Medical Sciences 52(1). p.59-66
Abstract
The effects of increasing age on skeletal muscle fatigue and endurance were assessed in 22 healthy young (14 men and 8 women; mean age, 28 +/- 6 years) and 16 healthy old (8 men and 8 women; mean age, 73 +/- 3 years) individuals. All subjects performed 100 repeated maximum dynamic knee extensions at 90 degrees.s-1 (1.57 rad.s-1) using an isokinetic dynamometer (Cybex II). Peak torque was recorded during every contraction, and for each individual the maximal voluntary contraction (MVC), the fatigue rate, the endurance level, and the relative reduction in muscle force were determined. MVC and endurance level were significantly lower in old men and women, but there was no discernible difference in relative muscle force reduction and fatigue... (More)
The effects of increasing age on skeletal muscle fatigue and endurance were assessed in 22 healthy young (14 men and 8 women; mean age, 28 +/- 6 years) and 16 healthy old (8 men and 8 women; mean age, 73 +/- 3 years) individuals. All subjects performed 100 repeated maximum dynamic knee extensions at 90 degrees.s-1 (1.57 rad.s-1) using an isokinetic dynamometer (Cybex II). Peak torque was recorded during every contraction, and for each individual the maximal voluntary contraction (MVC), the fatigue rate, the endurance level, and the relative reduction in muscle force were determined. MVC and endurance level were significantly lower in old men and women, but there was no discernible difference in relative muscle force reduction and fatigue rate between young and old individuals. We conclude that thigh muscles of older individuals are weaker than those of younger individuals, but relative to their strength, older individuals have similar properties as younger individuals with respect to muscle fatigue and endurance. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Journals of Gerontology. Series A: Biological Sciences & Medical Sciences
volume
52
issue
1
pages
59 - 66
publisher
Gerontologial Society of America
external identifiers
  • pmid:9008659
  • scopus:0031031498
ISSN
1758-535X
language
English
LU publication?
yes
id
fc53c4bf-a3d1-44b9-8731-c87379645fd2 (old id 1112179)
alternative location
http://biomed.gerontologyjournals.org/cgi/content/abstract/52/1/B59
date added to LUP
2008-07-21 14:41:15
date last changed
2017-04-30 14:03:37
@article{fc53c4bf-a3d1-44b9-8731-c87379645fd2,
  abstract     = {The effects of increasing age on skeletal muscle fatigue and endurance were assessed in 22 healthy young (14 men and 8 women; mean age, 28 +/- 6 years) and 16 healthy old (8 men and 8 women; mean age, 73 +/- 3 years) individuals. All subjects performed 100 repeated maximum dynamic knee extensions at 90 degrees.s-1 (1.57 rad.s-1) using an isokinetic dynamometer (Cybex II). Peak torque was recorded during every contraction, and for each individual the maximal voluntary contraction (MVC), the fatigue rate, the endurance level, and the relative reduction in muscle force were determined. MVC and endurance level were significantly lower in old men and women, but there was no discernible difference in relative muscle force reduction and fatigue rate between young and old individuals. We conclude that thigh muscles of older individuals are weaker than those of younger individuals, but relative to their strength, older individuals have similar properties as younger individuals with respect to muscle fatigue and endurance.},
  author       = {Lindstrom, B and Lexell, Jan and Gerdle, B and Downham, D},
  issn         = {1758-535X},
  language     = {eng},
  number       = {1},
  pages        = {59--66},
  publisher    = {Gerontologial Society of America},
  series       = {Journals of Gerontology. Series A: Biological Sciences & Medical Sciences},
  title        = {Skeletal muscle fatigue and endurance in young and old men and women},
  volume       = {52},
  year         = {1997},
}