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dc.contributor.advisorHinton, Pamela S.eng
dc.contributor.authorSinak, Timothyeng
dc.date.issued2012eng
dc.date.submitted2012 Falleng
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on March 8, 2013).eng
dc.descriptionThe entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.eng
dc.descriptionThesis advisor: Pamela Hinton, PhDeng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionM.S. University of Missouri--Columbia 2012.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Exercise physiology.eng
dc.description"December 2012"eng
dc.description.abstractINTRODUCTION: Plyometric [PLY] and resistance training [RT] have been successfully used to improve BMD in both men and women. Often, the hormonal response to exercise training is an important mediator of exercise-induced adaptations. PURPOSE: To assess the relationship between changes in IGF-1 and changes in BMD during a 12-mo exercise intervention involving either PLY or RT. METHODS: Twenty males with osteopenia were randomly assigned to either of two, 12 month exercise interventions: RT [n=10] or PLY [n=10]. Dual energy X-ray absorptiometry [DXA] was used to measure bone area and BMD of the LS, WB, Hip, and FN at 0 and 12-mo time points. IGF-1 concentrations were assessed at 0 and 12-mo time points with immunoassays. RESULTS: Subjects in both groups experienced increases in WB BMD [time, p=0.025] and LS BMD [time, p=0.047]. Hip BMD was improved only in the RT group [group x time, p = 0.068]. IGF-1 concentrations were increased in both groups [group x time, p=0.000]. No significant relationships were found between percent change in IGF-1 concentration and percent change in BMD at any site. CONCLUSION: RT and PLY may be effective interventions to maintain or improve BMD in osteopenic men. However, changes in circulating IGF-1 concentration are not related to changes in BMD during a 12-mo exercise intervention in men with osteopenia.eng
dc.format.extentvii, 120 pageseng
dc.identifier.urihttp://hdl.handle.net/10355/33164
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcollectionUniversity of Missouri-Columbia. Graduate School. Theses and Dissertationseng
dc.subjectweight-bearing exerciseeng
dc.subjectosteopeniaeng
dc.subjectosteogenic exerciseeng
dc.subjecthormonal responseeng
dc.titleThe relationship between insulin-like growth factor-1 and bone mineral density in osteopenic men following a 12-month osteogenic exercise interventioneng
dc.typeThesiseng
thesis.degree.disciplineExercise physiology (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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