“…It would be a hopeless task to give an exact description of this complex system with respect to all kinds of excitation of the whole frequency range, not forgetting the fact that there is a great variation as to the individual. Biodynamic models for the human body have, however, been constructed by several authors (for example , Dieckmann 1958, Dieckmann 1959, Edwards & Lange 1964, Franke 1951, Muksian & Nash 1974, O'Hara 1966, Sandover 1971, Suggs et al 1969, Vogt et al 1968, Vogt et al 1973, Weis et al 1964 and have also been authorized in two international standards (ISO 5982 1981, ISO 7962 1987. For the hand and arm no international standard has been presented, but in the working-group ISO/TC 108/SC 4/WG 5 -"Biodynamic modelling" -such a standard is in preparation.…”