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Correlation of Muscular Status With Bone Mineral Density in Osteoporosis

Changes in bone quality and microarchitecture, as a result of osteoporosis, are also known to affect muscle function. Knowing this fact, our intention was to investigate the correlation of muscle changes and bone mineral density in postmenopausal women with osteoporosis compared with healthy women. A randomized, comparative cross-sectional study was conducted with two groups of women: thirty-three women with osteoporosis in test group and forty-five women without osteoporosis in control group. The diagnosis of osteoporosis was based on an examination of bone mineral density (BMD) called Densitometry, performed on the lumbar spine. In this case, we summarized the T value of the measurement indicating bone mass. Volunteers have passed muscle status assessment tests with two clinical tests: hand grip strenght test and heel rise test for measuring the muscle capacity of plantar flexors. Mann Whitney test, t-test and Spearman rank correlation coefficient were used to analyze the data using IBM SPSS 23. We found a statistically significant difference (p <0.0001) between the groups in dominant hand grip performance, with higher values in the control group. The lower grip strenght of both dominant and non-dominant hands in the test group was significantly associated with lower bone mineral density (p = 0.012). We further found that the control subjects had a higher capacity of plantar flexors than the subjects of the osteoporosis in test group, with the difference being statistically significant again (p <0.0001). The findings provide important starting points for lower bone density correlation with lower muscle strength and capacity, and thus provide a basis for further exploration of an alternative way of diagnosing osteoporosis and related risk factors that may increase mortality rates.

Patricija Goubar
Alma Mater Europaea - ECM
Slovenia

 


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