The apparent mass of the seated human body: vertical vibration.

  title={The apparent mass of the seated human body: vertical vibration.},
  author={T E Fairley and Michael J. Griffin},
  journal={Journal of biomechanics},
  volume={22 2},
Apparent mass frequency response functions of the seated human body have been measured with random vibration in the vertical direction at frequencies up to 20 Hz. A group of eight subjects was used to investigate some factors (footrest, backrest, posture, muscle tension, vibration magnitude) that may affect the apparent mass of a person; a group of 60 subjects (24 men, 24 women and 12 children) was used to investigate variability between people. Relative movement between the feet and the seat… CONTINUE READING

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