This International Standard defines the mechanical characterics of the human body in the form of whole body mechanical input impedance. Available information is restricted to the frequency range from 0,5 to 30 Hz for a limited number of body positions.
It is expected that this impedance information will be used in the computer and analytical design of isolation systems such as platforms, seats and vehicle suspensions. Its use is limited to the development of mathematical models which represent the human body as a mechanical system. It should not be used to evaluate physiologic response or tolerance.
Mechanical systems should be designed to reduce detrimental vibration effects on the human body according to ISO 2631 and other associated documents.
It should be remembered that driving point impedance measurements are not necessarily the best approach if modelling of the complete (human) system is the intention. They can conceal remote resonances. The elements of any model derived may not represent the component parts of the human body.