While physical activity is an essential factor for muscle performance and development and also for the maintenance of bone mass in the loaded bones, apparently low intensity of physical activity of blind @entity1 may compromise the muscle performance and @entity79 ( @entity79 ). Therefore, the aim was to study whether there are differences in @entity79 of the weight-bearing or non-weight-bearing bones between @entity227 @entity1 and those with normal sight. Nineteen @entity227 premenopausal @entity1 and their matched pairs were recruited to the study. The mean age of the @entity227 @entity1 was 39.9 years (SD 8.1) and that of the @entity1 with normal vision 39.7 years (6.5). @entity79 of the distal radius, femoral neck and trochanter was measured with dual energy X-ray absorptiometry (DXA), and isometric muscle strength of the extremities and trunk with a dynamometer. Between-group differences were compared with paired Student's t-test. The @entity79 at the femur was 8% higher in favour of the group with normal sight, whereas radial @entity79 was similar in the two groups. The t-score was -1.0 (95% confidence interval -1.5 to -0.5) for the femoral neck @entity79 and -0.7 (-1.1 to -0.2) for the trochanter @entity79 in the group with @entity227 . The respective t-scores for the group with normal sight were -0.3 (-0.9 to 0.3) for the femoral neck and 0 (-0.7 to 0.7) for the trochanter. @entity227 seems to be a risk for lower @entity79 of the weight-bearing proximal femur, but not for lower @entity79 of the non-weight-bearing distal radius.

Bone mineral density of XXXX @entity1 .

@entity1 :: ('9606', 'Species') :: ['women', 'persons'] @entity79 :: ('MESH:D001847', 'Disease') :: ['bone mineral density', 'BMD'] @entity227 :: ('MESH:D014786', 'Disease') :: ['Visual handicap', 'impaired vision', 'visually handicapped']
@entity227 :: (MESH:D014786,Disease) :: ['visually handicapped']
