At vibrational frequencies below four or five Hz most subjects preferred that the footrest move in phase with and at the same amplitude as the seat. At higher frequencies most subjects preferred a stationary footrest.
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References
1.
CoermannR.R.1962. The Mechanical Impedance of the Human Body in Sitting and Standing Position at Low Frequencies. Human Factors, 4(5): 227.
2.
GoldmanD.E.VonGierkeH.E.1960. The Effects of Shock and Vibration on Man. Naval Medical Research Institute, Lecture and Review Series No. 60-3.
3.
HaackM.1956. Human Tolerance to Vibrations in Farm Machines. Agric. Eng.36(4):253.
4.
HarrisC.M.CredeC.F.1961. Shock and Vibration Handbook. New York:McGraw Hill Book Company.
5.
MagidCoermannE.B. R.R.ZiegenrueckerG.H.1960. Human Tolerance to Whole Body Sinusoidal Vibration, Aerospace Medicine. 31(11):915.
6.
MatthewsJ.1964. Ride Comfort for Tractor Operators. II. Analysis of Ride Vibrations on Pneumatic-type Tractors. J. Agric. Eng. Res.9(2):147.
7.
MatthewsJ.1964. Ride Comfort of Tractor Operators. I. Review of Existing Information. J. Agric. Eng. Res.9(1):3.
8.
PradkoLeeF. R. A.GreeneJ.D.1965. Human Vibration-Response Theory. ASME Paper 65-WA/HUF-19, New York.
9.
PradkoLeeF. R.KaluzaV.1966. Theory of Human Vibration Response. ASME Paper No. 66-WA/BHF-15. New York.
10.
SiemensT.L.1967. Tractor Operator Ride Comfort. Paper No. 2/134/A/14 presented at the Agricultural Engineering Symposium of the Institution of Agricultural Engineers, Silsoe, Bedford, England.
StikeleatherL.F.HallG.O.RadkeA.O.1972. A Study of Vehicle Vibration Spectra as Related to Seating Dynamics. SAE Paper No. 72.0001, New York.
13.
StikeleatherL.F.SuggsC.W.1970. An Active Seat Suspension System for Off-Road Vehicles. Trans. ASAE.13(1):99.
14.
SuggsC.W.AbramsC.F.Jr.1971. Mechanical Impedance Techniques for Evaluating the Dynamic Characteristics of Biological Materials. J. Agri. Eng. Res.16:307–315.
15.
SuggsC.W.C.W.AbramsC.F.Jr.StikeleatherL.F.1969. Application of a Damped Spring-Mass Human Vibration Simulator in Vibration Testing of Vehicle Seats. Ergonomics, 12(1):79.
16.
SuggsStikeleatherC.W. L.F.AbramsC.F.Jr.1970. Field Tests of an Active-Seat Suspension for Off-Road Vehicles. Transactions of the ASAE, 13(5):608–611.
17.
WeisE.B.Jr.ClarkeN.P.BrinkleyJ.W.MartinP.J.1964. Mechanical Impedance as a Tool in Research on Human Response to Acceleration. Aerospace Medicine. 35(11):945.
