Linked Life Data

6154678

Source:http://linkedlifedata.com/resource/pubmed/id/6154678

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1980-7-22
pubmed:abstractText
Rats were trained with two running protocols previously demonstrated to result in enhanced cardiac performance. Control groups included free-eating sedentary animals and food-restricted animals in which the body weights were the same as the runners. Calcium binding by isolated sarcoplasmic reticulum (SR) was slightly but significantly increased in SR from runners at low but not high calcium concentrations at 15 s and 1 min. Calcium uptake in the presence of 1 mM oxalate was increased in SR from runners. Actomyosin ATPase activity was increased by 10% (P less than 0.001) with one running protocol but not with the other. Myosin Ca2+ ATPase activity and actin-activated ATPase activity were also slightly increased in hearts of runners. In food-restricted cardiac actomyosin ATPase was significantly decreased. Actomyosin ATPase activity was found to be normal in hearts of sedentary animals subjected to water immersion without exercise. Therefore, physical training of rats by running, which produces a cardiac mechanical advantage similar to training by swimming, is not accompanied by cardiac biochemical changes of the same magnitude as in the hearts of swimmers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0161-7567
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
409-13
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Cardiac contractile proteins and sarcoplasmic reticulum in hearts of rats trained by running.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.