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dc.contributor.authorIkonen, Jenni N.
dc.contributor.authorJoro, Raimo
dc.contributor.authorUusitalo, Arja L.T.
dc.contributor.authorKyröläinen, Heikki
dc.contributor.authorKovanen, Vuokko
dc.contributor.authorAtalay, Mustafa
dc.contributor.authorTanskanen-Tervo, Minna M.
dc.date.accessioned2020-11-06T06:53:54Z
dc.date.available2020-11-06T06:53:54Z
dc.date.issued2020
dc.identifier.citationIkonen, Jenni N.; Joro, Raimo; Uusitalo, Arja L.T.; Kyröläinen, Heikki; Kovanen, Vuokko; Atalay, Mustafa; Tanskanen-Tervo, Minna M. (2020). Effects of military training on plasma amino acid concentrations and their associations with overreaching. Experimental Biology and Medicine, 245 (12), 1029-1038. DOI: 10.1177/1535370220923130
dc.identifier.otherCONVID_35391162
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/72505
dc.description.abstractAmino acids are thought to have a key role in the processes contributing to overreaching development through their metabolic properties and neuronal functions. In the present study, the effects of 10-week military training on the concentrations of 19 amino acids were investigated. Plasma amino acid concentrations were measured at rest from 53 healthy male conscripts on weeks 1, 4, 7, and 9 of their military service. Conscripts were classified as overreached and non-overreached. Overreaching classification was based on fulfilling at least three of five criteria: greater than 5% decrease in maximal oxygen uptake, increased rating perceived exertion (RPE), and decreased lactate-RPE ratio in submaximal marching test, admitting feeling overloaded and both increased scores in fatigue and decreased scores in vigor in the Profile of Mood States Adolescents. Eight conscripts (15%) were classified as overreached; their glutamine–glutamate ratio and alanine and arginine levels were significantly lower (P < 0.05) and glutamate concentration significantly higher (P < 0.05) in comparison to their non-overreached counterparts. The levels of arginine increased (P < 0.05) and tryptophan (P < 0.001) decreased in both groups throughout the study. The tyrosine concentration increased in non-overreached but, in contrast, remained at the same level in overreached individuals (P < 0.05). The results suggest that alterations in the levels of three metabolically important amino acids, alanine, glutamate and arginine, and the possibly neuroactive tyrosine and tryptophan might explain some of the physical and psychological symptoms of overreaching. The present study also confirms the potential use of glutamine–glutamate ratio as a tool for detecting overreaching.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.publisherSage Publications
dc.relation.ispartofseriesExperimental Biology and Medicine
dc.rightsCC BY-NC-ND 4.0
dc.subject.otheroverreaching
dc.subject.otherovertraining
dc.subject.othermilitary training
dc.subject.otheramino acids
dc.subject.otherglutamine–glutamate ratio
dc.subject.othermetabolism
dc.titleEffects of military training on plasma amino acid concentrations and their associations with overreaching
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202011066542
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineValmennus- ja testausoppifi
dc.contributor.oppiaineLiikuntafysiologiafi
dc.contributor.oppiaineGerontologia ja kansanterveysfi
dc.contributor.oppiaineScience of Sport Coaching and Fitness Testingen
dc.contributor.oppiaineExercise Physiologyen
dc.contributor.oppiaineGerontology and Public Healthen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange1029-1038
dc.relation.issn1535-3702
dc.relation.numberinseries12
dc.relation.volume245
dc.type.versionacceptedVersion
dc.rights.copyright© Authors, 2020
dc.rights.accesslevelopenAccessfi
dc.subject.ysosotilaskoulutus
dc.subject.ysofysiologiset vaikutukset
dc.subject.ysoaminohapot
dc.subject.ysoaineenvaihdunta
dc.subject.ysoylikunto
dc.subject.ysoaineenvaihduntatuotteet
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p16826
jyx.subject.urihttp://www.yso.fi/onto/yso/p11511
jyx.subject.urihttp://www.yso.fi/onto/yso/p9530
jyx.subject.urihttp://www.yso.fi/onto/yso/p3066
jyx.subject.urihttp://www.yso.fi/onto/yso/p24971
jyx.subject.urihttp://www.yso.fi/onto/yso/p24583
dc.rights.urlhttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.relation.doi10.1177/1535370220923130


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