Bensel C K
Behavioral Sciences Division, US Army Natick Research, Development and Engineering Center, MA 01760-5020.
Ergonomics. 1993 Jun;36(6):687-96. doi: 10.1080/00140139308967930.
This study was conducted to determine the effects on manual dexterity of the thickness of handcovering. Twelve men were timed as they performed five dexterity tests while barehanded and while wearing each of three thicknesses of chemical protective gloves, 0.18 mm, 0.36 mm, and 0.64 mm. The subjects participated in 14 sessions held on consecutive weekdays. Analysis of the data from six sessions spanning the test period yielded significant main effects (p < 0.001) of handwear and of session on all dexterity tests. Mean times were best with bare hands and poorest with the 0.64 mm gloves. Performance with the gloves improved over sessions to the extent that the results with gloves approached or surpassed performance levels achieved with the bare hands during the early sessions. Regression analyses carried out on the data from the last three sessions revealed a linear increase in times to test completion as a function of increases in thickness of the handcovering. The occurrence of damage to the gloves, in the form of punctures and tears, was inversely related to thickness. The findings suggest that selection of the thinnest glove material compatible with protection from the chemical environment and practice working with the handwear will result in relatively efficient manual performance.
本研究旨在确定手部覆盖物厚度对手部灵活性的影响。12名男性在裸手以及佩戴三种不同厚度（0.18毫米、0.36毫米和0.64毫米）的化学防护手套时，分别进行了五项灵活性测试，并记录了完成测试的时间。受试者在连续的工作日参加了14次测试。对测试期间六个阶段的数据进行分析后发现，在所有灵活性测试中，手套佩戴情况和测试阶段都产生了显著的主效应（p < 0.001）。平均完成时间以裸手时最短，佩戴0.64毫米手套时最长。随着测试阶段的推进，佩戴手套时的表现有所改善，以至于在后期测试中，佩戴手套的测试结果接近或超过了裸手时的表现水平。对最后三个阶段的数据进行回归分析后发现，随着手部覆盖物厚度的增加，完成测试的时间呈线性增加。手套出现穿刺和撕裂等损坏情况的发生率与厚度成反比。研究结果表明，选择与化学环境防护相匹配的最薄手套材料，并对手套进行使用练习，将有助于实现相对高效的手部操作。
