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Structural model for osteoporosis preventing behavior in postmenopausal women
Patricia J Estok1, Carol A Sedlak, Margaret O Doheny
1College of Nursing, Kent State University, Ohio 44242, USA.
Nursing Research
|May 15, 2007
Summary
Personalized bone density scan results increased calcium intake in postmenopausal women. However, dual-energy X-ray absorptiometry (DXA) scans did not influence weight-bearing exercise behaviors.
Area of Science:
- Gerontology
- Preventive Medicine
- Bone Health
Background:
- Osteoporosis prevention behaviors (OPBs) are crucial for delaying bone deterioration.
- Dual-energy X-ray absorptiometry (DXA) scans identify osteoporosis and can motivate OPBs by providing personal risk information.
Purpose of the Study:
- To examine the relationship between receiving personal bone mineral density (BMD) knowledge via DXA scan, general osteoporosis knowledge, health beliefs, and OPBs (calcium intake, weight-bearing exercise).
- Focus on healthy postmenopausal women aged 50-65 years.
Main Methods:
- Longitudinal randomized clinical trial with 203 women over 18 months (2001-2003).
- Personal DXA information receipt was manipulated via random assignment to experimental or control groups.
- Questionnaires collected data at baseline, 6 months, and 12 months; bone density was assessed.
Main Results:
- DXA results directly and positively impacted calcium intake at 6 months, with indirect effects at 12 months.
- Women informed of osteopenia or osteoporosis showed a greater increase in daily calcium intake compared to those with normal bone density.
- DXA results did not significantly relate to changes in exercise; however, health beliefs and general knowledge predicted initial levels of both behaviors.
Conclusions:
- Personalized DXA scan results significantly increased calcium intake in postmenopausal women.
- DXA scan results did not influence weight-bearing exercise behaviors.
- Further research is needed to explore factors influencing exercise adherence.
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