Department of Occupational Therapy, Dongshin University, Naju, Chonnam, Korea.
Ergonomics. 2009 Nov;52(11):1362-71. doi: 10.1080/00140130903067805.
Most tools, utensils, office equipment, home appliances, clothes, medical instruments, sporting goods, weapons and public facilities are made for people who are right-handed. Many left-handed people have to endure a certain amount of inconvenience or difficulty in carrying out daily activities in such an environment. In this study, 2437 Korean male and female participants were randomly selected to collect a variety of data on hand dominance and hand preference when handling diverse products and facilities. Their responses in a questionnaire survey revealed that 5.8% were left-handed and 7.9% were ambidextrous. The younger participants who were from teens to 39 years reported higher percentages of left-handedness than those over 40 years, with those in their thirties reporting the highest proportion of left-handedness (7.3-7.6%) for both men and women. A slightly higher percentage of the male participants (5.9%) said that they were left-handed than did the female participants (5.6%). However, the percentage who were ambidextrous varied with age group, but overall there was a higher percentage of women (8.3%) than of men (7.6%). The analysis of hand use behaviour revealed that the right-handed and ambidextrous people had a tendency to use their right hands more for actions that required accuracy than those that required force. The left-handed people had a strong tendency to use their left hands more often when making a forceful action than for one that required accuracy. Derived from these results, the conclusion is that, depending on their hand dominance, people seem to use their hands differently when they handle objects or use facilities, which should be considered in the design of hand-controlled devices. Depending on which hand is the dominant one, people seem to use their hands differently when they handle objects or use facilities. The left-handed tend to use their left hands more with force-required motions than with accuracy-required motions, while ambidextrous and right-handed people use their right hands more with accuracy-required motions than with force-required motions. Designers of products and facilities will find the results of this study useful for developing hand-controlled devices and systems.
大多数工具、器具、办公设备、家用电器、衣物、医疗器械、运动器材、武器和公共设施都是为惯用右手的人设计的。许多左撇子在这种环境中进行日常活动时不得不忍受一定程度的不便或困难。在这项研究中，随机选择了 2437 名韩国男性和女性参与者，收集了他们在处理各种产品和设施时手的优势和手偏好的各种数据。他们在问卷调查中的回答显示，5.8%是左撇子，7.9%是双手灵巧。从青少年到 39 岁的年轻参与者比 40 岁以上的参与者报告的左撇子比例更高，其中 30 多岁的男性和女性报告的左撇子比例最高（7.3-7.6%）。男性参与者（5.9%）说他们是左撇子的比例略高于女性参与者（5.6%）。然而，双手灵巧的参与者比例随着年龄组而变化，但总体而言，女性（8.3%）的比例高于男性（7.6%）。对手部使用行为的分析表明，右撇子和双手灵巧的人在需要准确性的动作中更倾向于使用右手，而在需要力量的动作中则更倾向于使用右手。左撇子在进行有力的动作时，更倾向于使用左手，而不是需要准确性的动作。从这些结果中得出的结论是，根据他们的手优势，人们在处理物体或使用设施时似乎会根据手的不同来使用手，这在设计手动控制设备时应该考虑到。根据哪只手是优势手，人们在处理物体或使用设施时似乎会用不同的手。左撇子在需要用力的动作中更倾向于使用左手，而在需要准确性的动作中则更倾向于使用右手，而双手灵巧和右撇子在需要准确性的动作中更倾向于使用右手，而在需要用力的动作中则更倾向于使用右手。产品和设施的设计师将发现这项研究的结果对开发手动控制设备和系统很有用。
