摘要
为了探究重物把手对人类重量感知的影响,选取了10位湖南某大学的学生参与实验,男女各5名。通过单人提举重物,左手持恒重5 kg,右手持随机变化重量1~10 kg,运用Borg’s量表给出右臂较左臂的主观重量知觉CR-10值。结果表明,塑料或硅胶把手对人类的重量感知无显著影响,性别和训练对人类的重量感知有显著的一阶效应。训练前,人们的主观重量知觉不可靠,男性女性对相同重量的主观重量知觉存在显著差异,男性的主观重量知觉比实际重量偏轻约11.27%;训练后,人们的主观重量知觉变得较为可靠,男性的重量感知准确率提高约9.43%,女性的重量感知准确率达到97%.因此,为了减少人工提举活动中因估重偏轻而导致的肌肉骨骼伤害,加强重量感知训练是可行的,尤其对于男性。
The objective of this study was to examine human＇s weight perception from container handles. The goal was to test the hypothesis that human＇s perception of weight is different if the container handle is not the same. Ten subjects （5 male and 5 female） participated in this experiment. The subjects were required to lift two weights in both the left and right arms simultaneously and compared the weight in the right hand （variable weight from 1 kg to 5 kg） to the one in the left hand （constant weight of 5 kg） and rated it on the Borg＇ s CR-10 scale. The results showed that there was no significant difference for human＇ s weight perception from two types of handles. The main effect of gender, gender ＆ training on weight perception was significant. Human＇ s weight perception was unreliable before training whereas was reliable after training. Before training, the weight perceived for male was less than the actual weight about 11.27%. However, after training, the accuracy of weight perception for male was improved about 9.43% and the accuracy for female was about 97%. Therefore, to reduce the possibility of musculoskeletal injuries from underestimating the actual weight in manual material handling operations, the weight perception training is feasible, especially for male.
出处
《技术与创新管理》
2016年第5期515-518,532,共5页
Technology and Innovation Management
