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Combined effect of vibration magnitude and backrest inclination on the apparent masses of seated human body

Weitan Yin et al.

Ergonomics2026https://doi.org/10.1080/00140139.2026.2640452article
AJG 3
Weight
0.50

What the paper says

Vibration magnitudes and backrest inclination affect apparent masses of the seated human body, yet their interaction remains unexplored. In this study, the in-line fore-aft, lateral, and vertical apparent masses were studied experimentally with a series of vibration magnitudes (0.25, 0.5, and 1.0 ms-2 r.m.s. in three translational directions, respectively) and backrest inclination angles (0°, 10°, and 20°). The peak modulus of the fore-aft apparent mass at the seat pan first decreased from 0° to 10° and then rose from 10° to 20°. Significant interaction between the two factors was found for fore-aft resonance parameters, which may be attributed to pelvic motion modulated by muscle activities. In contrast, lateral and vertical resonance parameters varied monotonically with backrest inclination and no significant interaction was detected. These findings reveal that the interaction between vibration magnitude and backrest inclination should be considered for accurate fore-aft ride comfort assessment.

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https://doi.org/https://doi.org/10.1080/00140139.2026.2640452

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@article{weitan2026,
  title        = {{Combined effect of vibration magnitude and backrest inclination on the apparent masses of seated human body}},
  author       = {Weitan Yin et al.},
  journal      = {Ergonomics},
  year         = {2026},
  doi          = {https://doi.org/https://doi.org/10.1080/00140139.2026.2640452},
}

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Combined effect of vibration magnitude and backrest inclination on the apparent masses of seated human body

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Evidence weight

0.50

Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40

F · citation impact0.50 × 0.4 = 0.20
M · momentum0.50 × 0.15 = 0.07
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

† Text relevance is estimated at 0.50 on the detail page — for your query’s actual relevance score, open this paper from a search result.