Determination of resonant frequencies and mode shapes of human tibiae in vivo

Resonant frequencies and mode shapes were assessed on 51 human tibiae of healthy persons. In the frequency range of 0 to 1000Hz, three typical resonant frequencies were identified using vibration and modal analysis. These resonant frequencies were corresponding to a rigid body mode (I) at 126 ± 16 Hz in the sagittal plane, a single bending mode (II) at 353 ± 51 Hz and a double bending mode (III) at 850 ± 62 Hz both in the medio-lateral plane.