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本研究采用生物力学分折方法,分析了14名健康男性受试者搬运两种不同设计(有或无帆布提手)、三种重量(4.5Kg,18.2Kg,31.8Kg)的邮袋时机体的受力情况。结果表明,邮袋增设握手以后,减轻了搬运过程中腰部弯曲程度,在搬运18.2Kg 和31.8Kg 两种重量的邮袋时,腰部所受水平切力明显减少(P<0.01),并可缩短搬运时间(14.1%,35.9%)。提示有提手的设计有利于保护工人健康和提高工作效率。
In this study, we used biomechanical analysis to analyze the effects of two healthy male subjects carrying two pouches of different design (with or without canvas handle), three pouches (4.5Kg, 18.2Kg, 31.8Kg) Force situation. The results showed that the waist pouch reduced the bending of the waist during the handling, and the horizontal shear force on the waist was significantly reduced (P <0.01) and the handling time was shortened when the pouch was 18.2Kg and 31.8Kg respectively (14.1%, 35.9%). Prompt hand design is conducive to protecting the health of workers and improve work efficiency.