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Sports Medicine
Erschienen in: Sports Medicine 8/2015

01.08.2015 | Systematic Review

Effects of Oestrogen Treatment on Skeletal Response to Exercise in the Hips and Spine in Postmenopausal Women: A Meta-Analysis

verfasst von: Renqing Zhao, Zhengang Xu, Meihua Zhao

Erschienen in: Sports Medicine | Ausgabe 8/2015

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Abstract

Background

It is recognized that low oestrogen status impairs the skeletal response to mechanical loading in elderly women; therefore, oestrogen administration is expected to increase the osteogenic response to mechanical strain.

Objectives

This meta-analysis aimed to evaluate the combined effects of hormone replacement therapy (HRT) and exercise on femoral neck and lumbar spine bone mineral density (BMD) in postmenopausal women, in comparison with the effects of exercise-only intervention.

Methods

A systematic literature search was conducted in PubMed, Embase, SPORTDiscus and ProQuest up to May 1, 2014, to ascertain the influence of oestrogen administration and exercise on BMD in postmenopausal women. The study quality and potential publication bias of the included trials were evaluated. The primary end point was the change in BMD from baseline to follow-up. The effect sizes were estimated in terms of the standardized mean difference (SMD). Subgroup analysis was conducted on the basis of exercise categories.

Results

Six studies with a total of 764 postmenopausal women (aged between 51.8 ± 2.9 and 68.0 ± 3.0 years) met the inclusion criteria. The included studies had low and high levels of heterogeneity of hip outcomes (I 2 = 0.0 %) and spine outcomes (I 2 = 80.8 %), respectively. Fixed- and random-effects models were used for calculating the effect size estimates. The pooled effect sizes associated with the combined interventions of HRT and exercise were significant for femoral neck BMD (SMD 0.220, 95 % confidence interval [CI] 0.011–0.429, p = 0.039) and lumbar spine BMD (SMD 0.729, 95 % CI 0.186–1.273, p = 0.009) in comparison with the exercise-only intervention. The mixed loading exercise programmes were sensitive to HRT in preventing postmenopausal bone loss in the spine (SMD 1.073, 95 % CI 0.140–2.005, p = 0.024) in comparison with single-mode exercise.

Conclusions

Our findings indicate that oestrogen treatment significantly increases the skeletal response to exercise training in both the hips and the spine in postmenopausal women, which implies that the combination of oestrogen administration and exercise may generate greater effects.
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Metadaten
Titel
Effects of Oestrogen Treatment on Skeletal Response to Exercise in the Hips and Spine in Postmenopausal Women: A Meta-Analysis
verfasst von
Renqing Zhao
Zhengang Xu
Meihua Zhao
Publikationsdatum
01.08.2015
Verlag
Springer International Publishing
Erschienen in
Sports Medicine / Ausgabe 8/2015
Print ISSN: 0112-1642
Elektronische ISSN: 1179-2035
DOI
https://doi.org/10.1007/s40279-015-0338-3

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