Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1976-8-2
pubmed:abstractText
A generalized hyperreflexia was observed in Skylab 2 crewmembers during the immediate postflight clinical evaluations. Unfortunately, no provisions had been made to quantitate the observed phenomenon. The cause of the hyperreflexia was not readily apparent at the time of the observation. Reflex changes have been noted in several of the Russian cosmonauts after extended spaceflight. Prior to the launch of Skylab 3, it was decided to measure and record a single tendon reflex and, if possible, the associated muscle potential. Duration of the Achilles reflex immediately postflight showed a significant (p greater than 0.01) shortening for all three crewmen. The reflex duration exhibited further significant shortening from preflight values on the fourth day after recovery. At the 16th day measurement, there was a signficant lengthening of the reflex for crewmenber 2 and 3 while crewmember 1 showed some lengthening which was not significant. By 29 d postrecovery, the reflex time of crewmember 1 had returned to his preflight value while the other two crewmen continued to show a significant lengthening of the reflex, although both were showing trends toward their preflight values. The muscle potential intervals were shortened immediately postflight and remained shortened during the 29 d of postflight evaluation. Currently, work is in progress to correlate these findings with other observed anatomical, physical, and biochemical changes. Final conclusions and an in-depth statistical analysis will be presented at a later date.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0095-6562
pubmed:author
pubmed:issnType
Print
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
400-2
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Measurement of a single tendon reflex in conjunction with a myogram: the second manned Skylab mission.
pubmed:publicationType
Journal Article