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황재진(Jaejin Hwang),정영주(Young-Ju Jeong),이동욱(Dongwook Lee),주석호(Seokho Ju),정명철(Myung-Chul Jung) 대한산업공학회 2018 대한산업공학회지 Vol.44 No.5
The objective of this study was to evaluate the effect of the recessed handle height and stature on the joint flexion angle, joint flexion moment, muscle activity of the upper extremities and low back, satisfaction, and preferred range of handle height during user’s door opening task of the French door refrigerator. The repeated-measures laboratory study was conducted with 28 participants. The results showed that joint angle, joint moment, and muscle activity were significantly decreased, and satisfaction was increased as the handle height increased. The middle stature group showed lower muscle activity of the wrist compared to short and tall stature groups. Based on the psychophysics, tall stature group had approximately 3 times greater range of preferred handle height than short stature group. Considering biomechanics and psychophysics, the recommendable range of the recessed handle height was 800mm~860mm. These results can be useful to design and improve the handles of the refrigerators.