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Discover valuable insights into ergonomics research and explore how human-centered design improves workplace safety, comfort, and productivity. Whether you’re a researcher, practitioner, or industry professional, evidence-based ergonomics helps create more efficient and sustainable working environments.
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Author Akinari Hirao, Naito Shinpei & Nobutoshi Yamazaki |
| Abstract In the seating comfort research, it is known that the pressure distribution should not exceed a certain threshold from the viewpoint of tissue compression and should be widely distributed. However, its ideal distribution is not defined in past research. In this study, we focused on the pressure sensitivity of thighs and buttocks and performed an analysis assuming automotive seating. We determined the exponent of Steven's power law for seat pressure by measuring local perceived pressure load that felt the same pressure feeling at the reference load point, and the sensitivity distribution of 29 participants were measured and classified into 3 groups. The comfortable pressure distribution of 5 participants was measured using the experimental seat and converted into a perceived pressure distribution using the sensitivity distribution. The results show measured pressure distribution is not the same as perceived. Analysis of the perceived pressure distribution suggests that the comfortable perceived pressure distribution is a uniform distribution that falls within a certain range for the minimum pressure. |