Linked Life Data

7558521

Source:http://linkedlifedata.com/resource/pubmed/id/7558521

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1995-11-22
pubmed:abstractText
The biochemical adaptations of different muscle fiber types to endurance training of various intensities and durations have previously been investigated. The objective of this study was to determine the effects of two different endurance training programs on muscle fiber morphology. Twenty-four male Sprague-Dawley rats were randomly assigned to three groups: high intensity/low duration endurance trained (HILD), low intensity/high duration endurance trained (LIHD), or untrained (controls). Following the twelve week training period, muscle fibers of the gastrocnemius muscle of the rats were histochemically classified as type I, type IIa, or type IIb following myosin ATPase staining with pre-incubation at pH 4.6. Muscle fiber type distribution and cross-sectional areas were then determined. Neither HILD nor LIHD rats demonstrated significant differences in fiber type distribution compared to controls. When all fiber types were pooled together and analyzed, there were no differences between the three groups with respect to fiber size. However, when the three fiber types were analyzed individually, HILD animals demonstrated a significant reduction in the size of type IIa fibers while LIHD rats experienced a significant diminution in the size of type I and type IIb fibers. Thus, the morphological adaptations of the muscle fibers in the HILD and LIHD groups were fiber type specific.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0172-4622
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
273-7
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
The effects of different treadmill running programs on the muscle morphology of adult rats.
pubmed:affiliation
Department of Physiology and Neurobiology, University of Connecticut, Storrs, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.