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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
3
|
| pubmed:dateCreated |
1988-9-6
|
| pubmed:abstractText |
Pressures were recorded in ten knees from five subjects with informed consent. Resting intra-articular pressures were found to be sub-atmospheric with a mean value of -5 +/- 1.5 mmHg (S.E. of mean). There was little variation in intra-articular pressure with changing joint angle in the normal joint. Infusion of as small a volume as 5 ml of sterile saline into the joint cavity caused the intra-articular pressure to increase to supra-atmospheric levels. Changing joint angle now produced clear modulations in intra-articular pressure. Pressure increased as the limb was moved out to extension and back to flexion with a minimum occurring in the mid-range. These modulations were more pronounced with active positioning of the joint than with passive positioning. Successive increases in intra-articular volume produced increases in intra-articular pressure as well as the degree of modulation of intra-articular pressure with joint angle. Cyclical flexion-extension movements caused a progressive decrease in the maximum pressure observed in extension. Non-noxious distension of the knee joint caused substantial reductions in the magnitude of isometric and isokinetic maximal voluntary contractions of quadriceps due to a reflex inhibition from joint mechanoreceptor afferents.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
May
|
| pubmed:issn |
0144-8757
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
73
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
305-14
|
| pubmed:dateRevised |
2004-11-17
|
| pubmed:meshHeading | |
| pubmed:year |
1988
|
| pubmed:articleTitle |
Pressures in normal and acutely distended human knee joints and effects on quadriceps maximal voluntary contractions.
|
| pubmed:affiliation |
Institute of Physiology, University, Glasgow.
|
| pubmed:publicationType |
Journal Article
|