Influence of muscle mass and bone mass on the mobility of elderly women: an observational study

BMC Geriatrics

Arlete MV Coimbra²  Anita L Neri¹  Manuela NJ Santos¹  Kedma T Montedori¹  Isabele Iartelli¹  Caroline C Barcelos³  Ibsen B Coimbra³  Gláucia R Falsarella¹ 

[1] Gerontology Program, State University of Campinas (UNICAMP), Barão Geraldo, Campinas-SP, Brazil;Family Health Program, State University of Campinas (UNICAMP), Rua Vital Brasil, 50, Barão Geraldo 13083-888, Campinas-SP, Brazil;Department of Medical Clinics, State University of Campinas (UNICAMP), Barão Geraldo, Brazil

关键词: Mobility;    Bone mass;    Muscle mass;    Elderly;   

Others  :  855454
DOI  :  10.1186/1471-2318-14-13

 received in 2013-04-10, accepted in 2014-01-17,  发布年份 2014

【 摘 要 】

Background

The purpose of this study was to investigate the influence of muscle mass and bone mineral density on markers of mobility in dwelling elderly women.

Methods

This cross-sectional study included 99 elderly women, who were 65 years old or above, in Campinas-SP, Brazil. To collect data, we used sociodemographic data, the body mass index (BMI), health status, comorbidities, use of medications, mobility tests (TUG and gait speed) and examinations of the body composition (densitometry with dual-emission X-ray absorptiometry “DXA”). In order to examine the relationship between muscle and bone mass with mobility (gait speed and TUG), we applied the Spearman correlation coefficient.

Also was applied the analysis of covariance (ANCOVA) adjusted for age and comorbidities. To identify the factors associated with mobility, we used the univariate and multivariate logistic regression analysis. The level of significance for statistical tests was P < 0.05.

Results

The correlation between sarcopenia and bone mineral density with mobility tests showed a significant relationship only between sarcopenia and TUG (r = 0.277, P = 0.006) in Spearman correlation coefficient. The result of the correlation analysis (ANCOVA) showed that sarcopenia was associated with gait speed (r² = 0.0636, P = 0.0018) and TUG (r² = 0.0898, P = 0.0027). The results of the multivariate analysis showed that age (P = 0.034, OR = 1.081) was associated with worse performance on gait speed. By highlighting the TUG test, the results of the multivariate analysis showed that the age (P = 0.004, OR = 1.111) and BMI in overweight (P = 0.011, OR = 7.83) and obese (P < 0.001, OR = 7.84) women were associated with lower performance of the functionality of the lower limbs.

Conclusion

The findings with regard to mobility tests which were analyzed in this study indicate the association of variables related to the aging process that contribute to the decline in physical performance, for example, age, BMI and sarcopenia.

【 授权许可】

   
2014 Falsarella et al.; licensee BioMed Central Ltd.

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