本文件描述了与手推车和推车的手动搬运相关的评估方法和物理要求，具体适用于材料搬运系统。所有可能的设计和应用都无法在制定这些指南时预料到。如果存在遵守本文件的问题，例如使用“现成”设计，请始终咨询负责的人体工程学部门。力量指南主要是参考米塔尔、尼科尔森和阿尤布（纽约:泰勒和弗朗西斯，1997）的《人工材料处理指南》（第二版）中包含的推/拉心理物理Snook数据制定的。《部队指南》涵盖了75%的女性能力和99%的男性能力。制定的指南中包括的因素包括:推/拉距离、垂直手高度、水平手高度、频率、车轮/脚轮定位和额定载荷。 这些因素被用来制定保守的力量指南。该指南假设在整个轮班期间频繁搬运手推车/推车（搬运频率大于每分钟一次）。对于超过力指南且不符合用于确定文件中指南的假设的手推车，请联系相应的工效学主题专家进行深入的工效学分析。深潜分析将考虑假设的差异（即频率、推/拉距离、手高度等）。

This document describes the assessment methods and physical requirements associated with the manual handling of carts and dollies, specific to material handling systems.All possible designs and applications could not be anticipated in creating these guidelines. Where there are questions of adherence to this document, such as use of an "off-the shelf" design, always consult the responsible Ergonomics Department.Force guidelines were primarily developed referencing the push/pull psychophysical Snook data contained in A Guide to Manual aterials Handling (second edition) by Mital, Nicholson and Ayoub (NY: Taylor & Francis, 1997). The force guidelines accommodate 75% of female capabilities and 99% of male capabilities.Factors that were included in the established guideline include: push / pull distances, vertical hand height, horizontal hand height, frequency and wheel / castor alignment and load rating. These factors were used to develop a conservative force guideline. The guidelines assume frequent handling of carts / dollies (handling frequency greater than once per minute) throughout a work shift. For carts that exceed the force guidelines and do not align with the assumptions utilized to determine the guidelines within the document, please contact the appropriate Ergonomic Subject atter Expert for a deep dive ergonomic analysis. The deep dive analysis will account for the differences in the assumptions (i.e. frequency, push/pull distance, hand height, etc.).