Lean mass and physical activity as predictors of bone mineral density in 16-20-year old women.

2.50
Hdl Handle:
http://hdl.handle.net/2336/47358
Title:
Lean mass and physical activity as predictors of bone mineral density in 16-20-year old women.
Authors:
Valdimarsson, O; Kristinsson, J O; Stefansson, S O; Valdimarsson, S; Sigurdsson, G
Citation:
J. Intern. Med. 1999, 245(5):489-96
Issue Date:
1-May-1999
Abstract:
OBJECTIVE: The aim of the study was to quantify the inter-relationship between bone mineral density and physical activity, muscle strength, and body mass composition in a group of healthy 16-20-year-old women. DESIGN: A cross-sectional study. SETTING: Reykjavik area. SUBJECTS: Two-hundred and fifty-four Icelandic Caucasian women aged 16, 18 and 20 years, randomly selected from the registry of Reykjavik. MAIN OUTCOME MEASURES: Bone mineral content (BMC) and density (BMD) in lumbar spine, hip, distal forearm and total skeleton and lean mass and fat mass were measured with dual energy X-ray absorptiometry (DEXA) and compared with grip strength measured with a dynamometer and physical activity as assessed by a questionnaire. RESULTS: The lean mass had the strongest correlation with BMC and BMD, stronger than weight, height and fat mass, both in univariate analysis (r = 0.41-0.77; P<0.001) and in linear regression analysis. The total skeletal BMD was logarithmically higher by hours of exercise per week (P<0.001)). About 30% of variability in total skeletal BMD in this age group can be predicted by lean mass and physical exercise. CONCLUSIONS: Modifiable factors, such as exercise and adequate muscle seem to be significant predictors of the attainment of peak bone mass in women.
Description:
To access publisher full text version of this article. Please click on the hyperlink in Additional Links field
Additional Links:
http://dx.doi.org/10.1046/j.1365-2796.1999.00486.x

Full metadata record

DC FieldValue Language
dc.contributor.authorValdimarsson, O-
dc.contributor.authorKristinsson, J O-
dc.contributor.authorStefansson, S O-
dc.contributor.authorValdimarsson, S-
dc.contributor.authorSigurdsson, G-
dc.date.accessioned2009-01-13T13:25:09Z-
dc.date.available2009-01-13T13:25:09Z-
dc.date.issued1999-05-01-
dc.date.submitted2009-01-13-
dc.identifier.citationJ. Intern. Med. 1999, 245(5):489-96en
dc.identifier.issn0954-6820-
dc.identifier.pmid10363750-
dc.identifier.urihttp://hdl.handle.net/2336/47358-
dc.descriptionTo access publisher full text version of this article. Please click on the hyperlink in Additional Links fielden
dc.description.abstractOBJECTIVE: The aim of the study was to quantify the inter-relationship between bone mineral density and physical activity, muscle strength, and body mass composition in a group of healthy 16-20-year-old women. DESIGN: A cross-sectional study. SETTING: Reykjavik area. SUBJECTS: Two-hundred and fifty-four Icelandic Caucasian women aged 16, 18 and 20 years, randomly selected from the registry of Reykjavik. MAIN OUTCOME MEASURES: Bone mineral content (BMC) and density (BMD) in lumbar spine, hip, distal forearm and total skeleton and lean mass and fat mass were measured with dual energy X-ray absorptiometry (DEXA) and compared with grip strength measured with a dynamometer and physical activity as assessed by a questionnaire. RESULTS: The lean mass had the strongest correlation with BMC and BMD, stronger than weight, height and fat mass, both in univariate analysis (r = 0.41-0.77; P<0.001) and in linear regression analysis. The total skeletal BMD was logarithmically higher by hours of exercise per week (P<0.001)). About 30% of variability in total skeletal BMD in this age group can be predicted by lean mass and physical exercise. CONCLUSIONS: Modifiable factors, such as exercise and adequate muscle seem to be significant predictors of the attainment of peak bone mass in women.en
dc.language.isoenen
dc.publisherBlackwell Scientific Publicationsen
dc.relation.urlhttp://dx.doi.org/10.1046/j.1365-2796.1999.00486.xen
dc.subject.meshAbsorptiometry, Photonen
dc.subject.meshAdolescenten
dc.subject.meshAdulten
dc.subject.meshAge Factorsen
dc.subject.meshBody Compositionen
dc.subject.meshBody Mass Indexen
dc.subject.meshBone Densityen
dc.subject.meshCross-Sectional Studiesen
dc.subject.meshExerciseen
dc.subject.meshFemaleen
dc.subject.meshHand Strengthen
dc.subject.meshHumansen
dc.subject.meshPredictive Value of Testsen
dc.titleLean mass and physical activity as predictors of bone mineral density in 16-20-year old women.en
dc.typeArticleen
dc.contributor.departmentDepartment of Internal Medicine, Reykjavik Hospital, University of Iceland, Reykjavik, Iceland.en
dc.identifier.journalJournal of internal medicineen

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