ORIGINAL RESEARCH article
Front. Bioeng. Biotechnol.
Sec. Biomechanics
Volume 13 - 2025 | doi: 10.3389/fbioe.2025.1592166
Research on static seating comfort of Chinese human body under different seat angle design parameters
Provisionally accepted
- 1Hunan University, Changsha, China
- 2Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- 3Country Garden School in Ningxiang City, Changsha, China
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This study aimed to deepen the understanding of seating comfort for Chinese population by developing a human finite element model. This model was integrated with a specific vehicle seat FE model to construct a comprehensive human-seat FE model and the mechanical responses of human body were analyzed under varying seat angles. Body pressure distribution, intervertebral disc stress and strain, and vertebral body stress were examined to study the relationship between internal reactions of human body and surface contact conditions. The results indicate that when the seat is flipped, the trends of disc stress, average pressure, and contact area are consistent, and the maximum strain closely aligns with the maximum pressure. When the backrest is adjusted, lumbar spine stress and surface pressure exhibit similar trends, while disc stress, strain, and the 1-SPD value show consistent patterns. The study concludes that increasing the backrest angle does not necessarily enhance comfort. Moreover, the stress variations in the thoracic and lumbar spines correlate with spinal angle alterations, suggesting that spinal angle can serve as a reliable indicator of stress conditions. Finally, the study highlights the correlation between spinal force and body pressure distribution, underscoring the utility of body pressure distribution metrics as a valuable proxy for understanding spinal responses.
Keywords: Seating comfort, chinese human finite model, Body pressure distribution, intervertebral disc stress, Vertebral body stress
Received: 12 Mar 2025; Accepted: 26 May 2025.
Copyright: © 2025 Yan, Yu, Li, Shangguan and Luo. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Lingchun Yu, Hunan University, Changsha, China
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