OBJECTIVES:: In post-menopausal @entity1 with @entity170 , insufficient @entity560 levels decrease @entity460 fixation in the bones and @entity460 transport in the sarcoplasmic reticulum, which impairs muscle strength, possibly leading to detrimental consequences for the preservation of functional capacity and postural balance, fall prevention, and @entity174 risk. The aim of this study was to evaluate the association between @entity560 levels and knee muscle strength, postural balance and functional mobility among postmenopausal @entity1 with @entity170 . METHODS:: This cross-sectional study included 63 @entity3604 older @entity1 (aged 60.6  3.1 years). The subjects completed the Timed Up and Go Test to measure functional mobility, and postural balance was assessed on the AccuSway Plus portable force platform. Maximal strength was tested using an isokinetic dynamometer for knee flexion and extension. The subjects were assessed as a group and were divided into quartiles according to their @entity560 levels. Clinicaltrials.gov: NCT02771834. RESULTS:: @entity560 status was independently associated with the normalized peak torque of the knee extensors (b=0.59; p=0.04) and Timed Up and Go Test (b=-0.07; p<0.001). No between-group differences were observed in the demographic and clinical variables or postural balance; however, significant differences were observed in the Timed Up and Go Test, and the group with the highest @entity560 levels exhibited better performance than the group with the lowest @entity560 levels (p<0.001). CONCLUSION:: The serum @entity560 levels were independently associated with normalized knee extension strength and functional mobility in postmenopausal @entity1 with @entity170 .

Serum 25-hydroxyvitamin D levels are associated with functional capacity but not with postural balance in @entity3604 postmenopausal XXXX .

@entity1 :: ('9606', 'Species') :: ['women'] @entity3604 :: ('MESH:D058866', 'Disease') :: ['osteoporotic'] @entity174 :: ('MESH:D050723', 'Disease') :: ['fracture'] @entity170 :: ('MESH:D010024', 'Disease') :: ['osteoporosis'] @entity460 :: ('MESH:D002118', 'Chemical') :: ['calcium'] @entity560 :: ('MESH:D014807', 'Chemical') :: ['vitamin D', 'Vitamin D']
@entity1 :: (9606,Species) :: ['women']
