The mechanical impedance of the human body in sitting and standing position at low frequencies.

摘要: The theory of the mechanical impedance systems with one or more degrees freedom is applied to human body. A method measuring and determining parameters vibrating developed. Impedance curves for longitudinal vibrations a sitting standing subject are established frequency range 1 20 c/s. influence varied posture restraining investigated. Dynamic movements body parts measured, directly indirectly, compared curves. responsible elements in apparent resonances identified. Correlations between function subjective tolerance curve vibration found reasons limits elucidated. variability tolerances due varying posture, systems, cushions, duration exposure discussed, conclusions development protective devices drawn. c...