Inclusion Criteria:  Post-menopausal female patients Aged 45-65 years L2-L4 and/or femoral neck BMD T-scores of -2.5 to-3.  Exclusion Criteria:  Osteoporotic fractures Metabolic bone disease Hyperparathyroidism Presence of hyperthyroidism History of steroids or current use of steroids History of bisphosphonate consumption over the previous year Women with lumbar disk herniation, spondylolisthesis or narrow spinal canal Conditions that constitute a contraindication for vibration therapy; Kidney stones Gallstones Pregnancy Epilepsy Cancer Pacemaker Treatment of orthostatic hypotension Recent implants (joint, cochlear, or corneal) Recent surgery Recent intrauterine device Acute thrombosis or hernia Acute rheumatoid arthritis Serious cardiovascular event Diabetes Migraine