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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Published on: January 29, 2018
Factors affecting bone mineral density in high school girls
J G Turner1, N L Gilchrist, E M Ayling
1Department of Nuclear Medicine, Christchurch Hospital.
The New Zealand Medical Journal
|March 25, 1992
Summary
Peak bone mass in adolescent girls is influenced by weight, height, calcium intake, and physical activity. Maintaining adequate body mass and calcium intake, alongside regular exercise, is crucial for optimizing bone density during teenage years.
Area of Science:
- Bone health research
- Adolescent physiology
- Osteoporosis prevention
Background:
- Establishing normative bone mineral density (BMD) ranges in adolescents is critical for identifying potential health issues.
- Understanding factors influencing BMD during teenage years is key for lifelong skeletal health.
Purpose of the Study:
- To establish a local normal range for hip and spine bone density in teenage girls.
- To identify factors affecting bone mineral density (BMD) in adolescents.
Main Methods:
- Assessed BMD at the hip and spine in 138 high school girls (mean age 16.4 years) using a DPX absorptiometer.
- Collected data on anthropometric factors, calcium intake, physical activity, and lifestyle variables.
Main Results:
- Mean hip BMD in 16-year-old girls was comparable to young adult females, but lumbar spine BMD was significantly lower.
- BMD positively correlated with weight, height, physical activity, and calcium intake.
- Weight was the strongest predictor of BMD variability; calcium and physical activity impacted femur BMD more than spine BMD.
Conclusions:
- Peak bone mass is modifiable through nutrition and exercise in adolescents.
- Encouraging regular exercise, adequate body mass, and sufficient calcium intake is recommended for adolescents to optimize bone density.
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