Estimation of various sitting postures using a load-cell-driven monitoring system |
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Affiliation: | 1. School of Thermal Engineering, Shandong Jianzhu University, Jinan, China 250101;2. Qihe No.3 Experimental Primary School, Dezhou, China 251100;3. Science and Technology Bureau of Qihe, Dezhou, China 251100 |
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Abstract: | Maintaining correct sitting posture is highly likely by simply informing seated people of their current sitting postures. Few studies have simultaneously applied load distribution measurements and sitting posture feedback to measure bodily pressure distribution. Commercialization of sitting posture monitoring systems has been difficult due to high cost. This study tested a system that measures load on the seat pan and load transferred to the backrest using four load cells installed on the seat pan. Three body weight ratios were calculated and differences in body weight ratios were tested among six sitting postures. The results were considered highly reliable based on strong correlations among three instruments’ results despite differences in force plate and dead load between the results of the monitoring system and the load-measuring system. The findings encourage commercialization and future research that includes gender and physical characteristic differences. |
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Keywords: | Sitting posture estimation Sitting monitoring system Body weight ratio |
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