骨振動について

第2報

抄録

At our previous study, we designed a device to add a mechanical impulse to clarify some dynamic mechanical properties of bones and demonstrated that a bone vibration in natural frequency with high and low-frequency components and with logarithmic decrement was developed.
This report demonstrates that logarithmic decrement and natural frequency is constant every site of a femur, but its stress in a bone exerted by one mechanical impulse is varied every site.
And differences of the logarithmic decrement between ages and between males and females is not clearly.
We make sure them, using Desk-Top Analog Computor.
Furthermore, we illustrate the distribution of stresses in one femur in the medial side in detail and in three femurs in both sides.