Show simple item record

dc.contributor.authorNevill, Alan M.
dc.contributor.authorBurrows, Melonie
dc.contributor.authorHolder, Roger L.
dc.contributor.authorBird, Steve
dc.contributor.authorSimpson, David
dc.date.accessioned2007-04-05T10:41:46Z
dc.date.available2007-04-05T10:41:46Z
dc.date.issued2003
dc.date.submitted2007-03-14
dc.identifier.citationMedicine and Science in Sports and Exercise, 35(10): 1733-1739
dc.identifier.issn0195-9131
dc.identifier.pmid14523312
dc.identifier.doi10.1249/01.MSS.0000089345.28012.23
dc.identifier.urihttp://hdl.handle.net/2436/11116
dc.description.abstractPURPOSE: Evidence suggests that exercise plays an important role in stimulating site-specific bone mineral density (BMD). However, what is less well understood is how these benefits dissipate throughout the body. Hence, the purpose of the present study was to compare the levels of, and the correlation between, BMD recorded at 10 sites in female endurance runners, and to investigate possible determinants responsible for any inter-site differences observed. METHODS: Repeated measures ANOVA was used to compare the BMD between sites and factor analysis was used to describe the pattern of intersite correlations. Allometric ANCOVA was used to identify the primary determinants of bone mass and how these varied between sites. RESULTS: The ANOVA and factor analysis identified systematic differences in BMD between sites, with the greatest BMD being observed in the lower-body sites, in particular the legs. An investigation into the possible mechanisms responsible for these differences revealed "distances run" (km.wk-1) as a positive, and "years of training" as a negative determinant of bone mass (P < 0.001). However, the effect of a number of determinants varied between sites (P < 0.05). Specifically, the ANCOVA identified that running further distances resulted in higher bone mass in the arms and legs. In contrast, training for additional years appeared to result in lower bone mass in the arms and lumbar spine. Calcium intake was also found to be positively associated with bone mass in the legs but negatively associated at all other sites. CONCLUSIONS: A combination of running exercise and calcium intake would appear to stimulate the bone mass of women endurance runners at lower-body sites but at the expense of bone mass at upper-body sites.
dc.format.extent179204 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherLippincott Williams & Wilkins
dc.relation.urlhttp://dx.doi.org/10.1249/01.MSS.0000089345.28012.23
dc.subjectRunning
dc.subjectFemale athletes
dc.subjectAthletes
dc.subjectLower-body
dc.subjectBone mineral density
dc.subjectUpper-Body
dc.subjectFemale endurance runners
dc.subjectCalcium intake
dc.subjectExercise
dc.subjectDistance runners
dc.titleDoes lower-body BMD develop at the expense of upper-body BMD in female runners?
dc.typeJournal article
dc.format.digYES
refterms.dateFOA2018-08-21T09:41:41Z
html.description.abstractPURPOSE: Evidence suggests that exercise plays an important role in stimulating site-specific bone mineral density (BMD). However, what is less well understood is how these benefits dissipate throughout the body. Hence, the purpose of the present study was to compare the levels of, and the correlation between, BMD recorded at 10 sites in female endurance runners, and to investigate possible determinants responsible for any inter-site differences observed. METHODS: Repeated measures ANOVA was used to compare the BMD between sites and factor analysis was used to describe the pattern of intersite correlations. Allometric ANCOVA was used to identify the primary determinants of bone mass and how these varied between sites. RESULTS: The ANOVA and factor analysis identified systematic differences in BMD between sites, with the greatest BMD being observed in the lower-body sites, in particular the legs. An investigation into the possible mechanisms responsible for these differences revealed "distances run" (km.wk-1) as a positive, and "years of training" as a negative determinant of bone mass (P < 0.001). However, the effect of a number of determinants varied between sites (P < 0.05). Specifically, the ANCOVA identified that running further distances resulted in higher bone mass in the arms and legs. In contrast, training for additional years appeared to result in lower bone mass in the arms and lumbar spine. Calcium intake was also found to be positively associated with bone mass in the legs but negatively associated at all other sites. CONCLUSIONS: A combination of running exercise and calcium intake would appear to stimulate the bone mass of women endurance runners at lower-body sites but at the expense of bone mass at upper-body sites.


Files in this item

Thumbnail
Name:
Nevill18.pdf
Size:
175.0Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record