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An Investigation of Driver Discomfort and Related Seat Design Factors in Extended-Duration Driving
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Abstract
A study of automotive seating comfort and related design factors was conducted, utilizing subjective techniques of seat comfort assessment and objective measures of the seat/subject interaction. Eight male subjects evaluated four different test seats during a short-term seating session and throughout a three-hour driving simulation. For the latter, subjects operated a static laboratory driving simulator, performing body-area discomfort evaluations at thirty-minute intervals. Cross-modality matching (CMM), a subjective assessment technique in which a stimulus is rated by matching to the level of another stimulus, was used during the long-term driving simulation to evaluate discomfort. Subject posture, muscle activity in the lower back and abdomen, and pressure levels at key support locations on the seat were monitored. In addition, a sonic digitizing system was used to record seat indentation contours and to characterize the subjects' spinal contours.
The rights, welfare, and informed consent of the volunteer subjects who participated in this study were observed under guidelines established by the U.S. Department of Health, Education, and Welfare Policy (now Health and Human Services) on Protection of Human Subjects and accomplished under medical research design protocol standards approved by the Committee to Review Grants for Clinical Research and Investigation Involving Human Beings, Medical School, The University of Michigan.
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Citation
Reed, M., Saito, M., Kakishima, Y., Lee, N. et al., "An Investigation of Driver Discomfort and Related Seat Design Factors in Extended-Duration Driving," SAE Technical Paper 910117, 1991, https://doi.org/10.4271/910117.Also In
References
- Hubbard, R.P. Reynolds, H.M. 1984 Anatomical geometry and seating SAE paper no. 840506
- Phillipart, N.L Kuechenmeister, T.J. Ferrara, R.A. Arnold, A.J. 1985 The effects of the steering wheel to pedal relationship on driver -selected seat position SAE paper no. 850311
- Habsburg, S. Middendorf, L. 1977 What really connects in seating comfort? Studies of correlates of static seat comfort SAE paper no. 770247
- Kamijo, K. Tsujimura, H. Obara, H. Katsumata, M. 1982 Evaluation of seating comfort SAE paper no. 820761
- Marks, L.E. 1989 Personal communication with N.S. Lee University of Michigan Transportation Research Institute
- Schneider, L.W. Ricci, L. 1989 Roadside survey of driver discomfort and related factors Report no. UMTRI-89-23 University of Michigan Transportation Research Institute Ann Arbor
- Petrofsky, J.S. Glaser, R.M. Phillips, C.A. 1982 Evaluation of the amplitude and frequency components of the surface EMG as an index of muscle fatigue Ergonomics 25 3 213 223
- Treaster, D. Marras, W.S. 1989 Seat Pressure: Measurement and analysis SAE paper no. 890849
- Robbins, D.H. 1986 Study of seatback contours for optimum seat design Report no. UMTRI-86-39 University of Michigan Transportation Research Institute Ann Arbor
- Troup, J.D.G. 1978 Driver's back pain and its presentation: A review of the postural, vibratory and muscular factors, together with the problem of transmitted road shock Applied Ergonomics 9 4 207 214
- Andersson, G.B.J. Murphy, R.W. Ortengren, R. Nachemson, A.L. 1979 The influence of backrest inclination and lumbar support on lumbar lordosis Spine 4 1 52 58
- Jorgenson, N.F. Fallentin, N. Krogh-Lund, C. Jensen, B. 1988 Electromyography and fatigue during prolonged, low-level static contractions European Journal of Applied Physiology 57 1 316 321
- Corlett, E.N. Eklund, J.A.E. 1984 How does a backrest work? Applied Ergonomics 15 2 111 114
- Keegan, J.J. 1964 The medical problem of lumbar spine flattening in automobile seats SAE paper no. 838A
- Andersson, G.B.J. Ortengren, R. Nachemson, A. Elfstrom, G. 1974 Lumbar disc pressure and myoelectric back muscle activity IV. Studies on a car driver's seat Scandinavian Journal of Rehabilitation Medicine 6 3 128 133