Correlation analysis of bone vibration frequency and bone mineral density in children

Vibration frequencies of ulnae in 19 children aged between 10 and 15 years old were correlated with their bone mineral densities (BMDs) determined using dual energy x-ray absorptiometry. A correlation analysis method to identify the best frequency range for the vibration analysis was developed. The correlation of subjects´ bone vibration frequencies in the identified frequency range with their BMDs were 0.71 (for first order polynomial) and 0.81 (for second order polynomial). This is an initial study, based on a small group of subjects. We are currently continuing the work on a larger number of subjects to confirm the findings.