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Osteoporosis International

Erschienen in:

01.02.2009 | Original Article

Changes in soft tissue composition are the primary predictors of 4-year bone mineral density changes in postmenopausal women

verfasst von: L. A. Milliken, E. Cussler, R. A. Zeller, J.-E. Choi, L. Metcalfe, S. B. Going, T. G. Lohman

Erschienen in: Osteoporosis International | Ausgabe 2/2009

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Abstract

Summary

Changes in body weight influence bone mineral density, but the role of body composition is not clear in postmenopausal women. Body weight and soft tissue composition predicted bone changes independent of calcium supplementation and exercise frequency, indicating that soft tissue composition should be measured in clinical trials.

Introduction

The purpose of this study was to examine the relationship between changes in body weight and composition and changes in 4-year bone mineral density (BMD) after accounting for age, 4-year exercise frequency (EX), and 4-year calcium supplement intake (CA) in postmenopausal women with and without hormone therapy (HT).

Methods

Postmenopausal women (aged 40–65 years) either using HT (for 1–3.9 years) or not using HT (for ≥1 year) were recruited to the study. EX and CA was monitored throughout the study and 167 women completed 4 years. BMD and soft tissue composition measurements were made using dual-energy X-ray absorptiometry. Regression was used to predict 4-year BMD changes from EX, CA, age, baseline and 4-year changes in body weight and composition. HT users (n = 115, 55.3 ± 4.3 years) and non-users (n = 52, 57.5 ± 4.7 years) were analyzed separately.

Results

The models predicting regional BMD changes that included soft tissue composition changes explained the most variation compared with those with body weight or EX and CA alone. Larger amounts of variation in BMD changes were explained in the no HT group.

Conclusion

Body composition changes are important positive predictors of BMD changes independent of EX and CA supplementation, but their contribution varies according to bone site and with HT use.

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Titel: Changes in soft tissue composition are the primary predictors of 4-year bone mineral density changes in postmenopausal women
verfasst von: L. A. Milliken
E. Cussler
R. A. Zeller
J.-E. Choi
L. Metcalfe
S. B. Going
T. G. Lohman
Publikationsdatum: 01.02.2009
Verlag: Springer-Verlag
Erschienen in: Osteoporosis International / Ausgabe 2/2009
Print ISSN: 0937-941X
Elektronische ISSN: 1433-2965
DOI: https://doi.org/10.1007/s00198-008-0664-5

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Changes in soft tissue composition are the primary predictors of 4-year bone mineral density changes in postmenopausal women

Abstract

Summary

Introduction

Methods

Results

Conclusion

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Methods

Results

Conclusion

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