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Distribution of fibre types and fibre sizes in the tibialis cranialis muscle of beagle dogs

Newsholme, S J; Lexell, Jan LU and Downham, D Y (1988) In Journal of Anatomy 160. p.1-8
Abstract
The percentages of Type I muscle fibres were measured systematically in ATPase-stained, transverse cryostat sections of whole tibialis cranialis muscles from 8 young, adult beagles. The distance of the section from the origin of the muscle does not significantly affect the mean percentage. There are no identifiable differences in mean percentages between right and left muscles. Differences in mean percentages between individuals are significant when sexes are combined (P less than 0.01) and within sexes (males: P less than 0.01; females: P less than 0.05). Within sections, the percentage tends to be lowest at the superficial (craniolateral) border and to vary less from site to site deeper within the muscle. Fibre cross sectional areas were... (More)
The percentages of Type I muscle fibres were measured systematically in ATPase-stained, transverse cryostat sections of whole tibialis cranialis muscles from 8 young, adult beagles. The distance of the section from the origin of the muscle does not significantly affect the mean percentage. There are no identifiable differences in mean percentages between right and left muscles. Differences in mean percentages between individuals are significant when sexes are combined (P less than 0.01) and within sexes (males: P less than 0.01; females: P less than 0.05). Within sections, the percentage tends to be lowest at the superficial (craniolateral) border and to vary less from site to site deeper within the muscle. Fibre cross sectional areas were measured systematically in the same sections of the right muscle from 3 males and 3 females. Mean areas for each section were greater for Type II than for Type I fibres. Mean areas for each fibre-type varied moderately and non-systematically between the sample sites within sections. A needle biopsy taken from deep within this muscle should provide a more consistent and reliable estimate of fibre-type proportion in the whole muscle than a superficial specimen. Proportions are not affected by the distance of the sample site from the muscle origin, and left or right muscles are suitable for sequential samples. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Anatomy
volume
160
pages
1 - 8
publisher
John Wiley & Sons
external identifiers
  • pmid:3253248
  • scopus:0023771447
ISSN
0021-8782
language
English
LU publication?
no
id
a15e1a85-c576-49c3-9551-f440e8e18bbc (old id 1104273)
alternative location
http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1262042&blobtype=pdf
date added to LUP
2008-08-07 13:47:44
date last changed
2017-04-23 03:26:21
@article{a15e1a85-c576-49c3-9551-f440e8e18bbc,
  abstract     = {The percentages of Type I muscle fibres were measured systematically in ATPase-stained, transverse cryostat sections of whole tibialis cranialis muscles from 8 young, adult beagles. The distance of the section from the origin of the muscle does not significantly affect the mean percentage. There are no identifiable differences in mean percentages between right and left muscles. Differences in mean percentages between individuals are significant when sexes are combined (P less than 0.01) and within sexes (males: P less than 0.01; females: P less than 0.05). Within sections, the percentage tends to be lowest at the superficial (craniolateral) border and to vary less from site to site deeper within the muscle. Fibre cross sectional areas were measured systematically in the same sections of the right muscle from 3 males and 3 females. Mean areas for each section were greater for Type II than for Type I fibres. Mean areas for each fibre-type varied moderately and non-systematically between the sample sites within sections. A needle biopsy taken from deep within this muscle should provide a more consistent and reliable estimate of fibre-type proportion in the whole muscle than a superficial specimen. Proportions are not affected by the distance of the sample site from the muscle origin, and left or right muscles are suitable for sequential samples.},
  author       = {Newsholme, S J and Lexell, Jan and Downham, D Y},
  issn         = {0021-8782},
  language     = {eng},
  pages        = {1--8},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Anatomy},
  title        = {Distribution of fibre types and fibre sizes in the tibialis cranialis muscle of beagle dogs},
  volume       = {160},
  year         = {1988},
}