Journal
MENOPAUSE-THE JOURNAL OF THE NORTH AMERICAN MENOPAUSE SOCIETY
Volume 28, Issue 10, Pages 1181-1185Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/GME.0000000000001820
Keywords
Appendicular skeletal muscle mass; Low bone mass; Myopenia; Older women
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Funding
- CoordenacAo de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) [001]
- FundacAo de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG)
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The study verified that absolute ALM (<15 kg) is the most suitable parameter for predicting osteoporosis in postmenopausal women based on LMM. ALM and ALM index were associated with osteoporosis at the lumbar spine, while only ALM was associated with osteoporosis at the femoral neck.
Objective: This study aimed to verify which of the different cutoff points of low muscle mass (LMM) based on appendicular lean mass (ALM) is associated with osteoporosis in postmenopausal women (PMW). Methods: Cross-sectional study. PMW (n = 355) were classified for the presence of osteoporosis (score <-2.5 standard deviations) at the femoral neck and lumbar spine and LMM (three cutoff points: ALM < 15 kg; ALM/height(2) [ALM index] <5.67 kg/m(2) and ratio between ALM and body mass index [ALM(BMI)] <0.512). Results: After adjustments for confounding factors, binary logistic regression showed that ALM and ALM index were associated with osteoporosis at the lumbar spine (odds ratio [OR] = 5.3 [95% CI: 2.3-12.5] and OR = 2.5 [95% CI: 1.0-6.2], respectively) and only ALM was associated with osteoporosis at the femoral neck (OR = 16.1 [95% CI: 4.1-62.5]). When women were classified as having osteoporosis in at least one site, only ALM was associated with osteoporosis (OR = 7.7 [95% CI: 3.3-15.6]). There was no association between ALM(BMI) and osteoporosis. The predictive value of ALM for osteoporosis decreased after BMI or height were included as a covariate in the model. Conclusion: Absolute ALM (<15 kg) seems to be the most suitable for predicting osteoporosis based on LMM in PMW.
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