Show simple item record

dc.contributor.authorHolmes, Brianna Lynn.en_US
dc.date.accessioned2010-02-16T15:45:59Z
dc.date.available2010-02-16T15:45:59Z
dc.date.issued2009-02-16T15:45:59Z
dc.identifier.urihttp://hdl.handle.net/10464/2915
dc.description.abstractThe purpose of this study was to examine the associations between bone speed of sound (SOS) and body composition, osteoporosis-related health behaviours, and socioeconomic status (SES) in adolescent females. A total of 442 adolescent females in grades 9-11 participated. Anthropometric measures of height, body mass, and percent body fat were taken, and osteo-protective behaviours such as oral contraceptive use (OC), physical activity and daily calcium intake were evaluated using self-report questionnaires. Bone SOS was measured by transaxial quantitative ultrasound (QUS) at the distal radius and mid-tibia. The results suggest that fat mass is a significant negative predictor of tibial SOS, while lean mass is positively associated with radial SOS scores and calcium intake was positively associated with tibial SOS scores (p<O.05). Additionally, users of OC had higher radial SOS. No significant correlation was found between physical activity and bone SOS. Therefore bone strength measured by QUS is reduced in adolescents with an increased fat mass, and influenced positively by OC use, calcium intake and lean mass.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectOsteoporosis in women--Epidemiology.en_US
dc.subjectBone densitometry.en_US
dc.subjectBones--Growth.en_US
dc.subjectObesity in adolescence--Health aspects.en_US
dc.subjectOral contraceptives--Side effects.en_US
dc.titleRelative importance of body composition, osteoporosis- related behaviours and socioeconomic status on bone SOS in adolescent femalesen_US
dc.typeElectronic Thesis or Dissertationen
dc.degree.nameM.Sc. Applied Health Sciencesen_US
dc.degree.levelMastersen_US
dc.contributor.departmentApplied Health Sciences Programen_US
refterms.dateFOA2021-08-07T01:44:43Z


Files in this item

Thumbnail
Name:
Brock_Holmes_Brianna_2009.pdf
Size:
3.234Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record