Cheng Te-Shiang, Lee Tzu-Hsien
Department of Management and Information Technology, Southern Taiwan University of Technology, Tainan, Taiwan, ROC.
Ind Health. 2006 Jan;44(1):200-6. doi: 10.2486/indhealth.44.200.
This study examined the maximum acceptable weight of carriage (MAWC) for young Taiwanese males experienced in manual load carriage tasks. The elements of the examined load carriage tasks included lifting a box from the floor to the waist height, turning around while holding the box, carrying the box at the waist height for a distance, lowering the box to the floor, turning around, and walking unloaded back to the original position. Subjects performed the load carriage tasks over different levels of carriage distance, frequency, box width (sagittal dimension), and handle according to a response surface design. The results showed that subjects' MAWC decreased with carriage distance, frequency and box width, while heart rate and rate of perceived exertion (RPE) increased with carriage distance, frequency and box width. The MAWC for box with handles was on average 1.5 kg more than that for box without handles, while the effects of handle on heart rate and RPE were very trivial.
本研究调查了有手动搬运任务经验的台湾年轻男性的最大可接受搬运重量（MAWC）。所考察的搬运任务要素包括将箱子从地面举至腰部高度、举着箱子转身、在腰部高度搬运箱子一段距离、将箱子放至地面、转身以及空手走回原位。受试者根据响应面设计在不同的搬运距离、频率、箱子宽度（矢状径）和把手条件下执行搬运任务。结果表明，受试者的MAWC随搬运距离、频率和箱子宽度的增加而降低，而心率和自觉用力程度（RPE）随搬运距离、频率和箱子宽度的增加而升高。有把手箱子的MAWC平均比无把手箱子高1.5千克，而把手对心率和RPE的影响非常小。
