Abstract：
BACKGROUND: Work-related low back pain (LBP) increases the workforce disability and healthcare costs. This study evaluated the LBD risk level associated with handling the ACGIH TLVs in lifting tasks corresponding to various horizontal and vertical zones.
OBJECTIVE: The aim of this study was to compare the low-risk ACGIH TLV to risk outcomes from various validated lifting assessment methods, including the OSU LBD Risk Model, NIOSH Lifting Equation, and LiFFT.
METHODS: Twenty-four subjects were recruited for this study to perform various lifting conditions. The various ergonomic assessment methods were then used to obtain the risk assessment outcomes.
RESULTS: The selected assessment methods showed that the ACGIH-defined TLVs are associated with less than high-risk for LBD for all the assessed tasks. The findings showed a moderate agreement (Kendall\'s W = 0.477) among the various assessment methods risk outcomes. The highest correlation (ρ= 0.886) was observed between the NIOSH Lifting Equation and LiFFT methods risk assessment outcomes.
CONCLUSIONS: The findings showed that ACGIH-defined TLVs possesses less than high-risk for LBD. The outcomes of the selected ergonomic assessment methods moderately agree to each other.
OBJECTIVE: The aim of this study was to compare the low-risk ACGIH TLV to risk outcomes from various validated lifting assessment methods, including the OSU LBD Risk Model, NIOSH Lifting Equation, and LiFFT.
METHODS: Twenty-four subjects were recruited for this study to perform various lifting conditions. The various ergonomic assessment methods were then used to obtain the risk assessment outcomes.
RESULTS: The selected assessment methods showed that the ACGIH-defined TLVs are associated with less than high-risk for LBD for all the assessed tasks. The findings showed a moderate agreement (Kendall\'s W = 0.477) among the various assessment methods risk outcomes. The highest correlation (ρ= 0.886) was observed between the NIOSH Lifting Equation and LiFFT methods risk assessment outcomes.
CONCLUSIONS: The findings showed that ACGIH-defined TLVs possesses less than high-risk for LBD. The outcomes of the selected ergonomic assessment methods moderately agree to each other.
摘要：
背景：与工作相关的下腰痛（LBP）增加了劳动力残疾和医疗保健成本。这项研究评估了与在对应于各种水平和垂直区域的提升任务中处理ACGIHTLV相关的LBD风险水平。
目的：本研究的目的是将低风险ACGIHTLV与各种经过验证的提升评估方法的风险结果进行比较，包括OSULBD风险模型，NIOSH提升方程，和LiFFT。
方法：本研究招募了24名受试者进行各种举升条件。然后使用各种人体工程学评估方法来获得风险评估结果。
结果：选定的评估方法表明，ACGIH定义的TLV与所有评估任务的LBD风险均低于高风险。研究结果表明，在各种评估方法风险结果之间存在适度的一致性（Kendall的W=0.477）。在NIOSH提升方程和LiFFT方法风险评估结果之间观察到最高的相关性(ρ=0.886)。
结论：研究结果表明，ACGIH定义的TLV具有较低的LBD风险。所选择的人体工程学评估方法的结果彼此适度一致。
目的：本研究的目的是将低风险ACGIHTLV与各种经过验证的提升评估方法的风险结果进行比较，包括OSULBD风险模型，NIOSH提升方程，和LiFFT。
方法：本研究招募了24名受试者进行各种举升条件。然后使用各种人体工程学评估方法来获得风险评估结果。
结果：选定的评估方法表明，ACGIH定义的TLV与所有评估任务的LBD风险均低于高风险。研究结果表明，在各种评估方法风险结果之间存在适度的一致性（Kendall的W=0.477）。在NIOSH提升方程和LiFFT方法风险评估结果之间观察到最高的相关性(ρ=0.886)。
结论：研究结果表明，ACGIH定义的TLV具有较低的LBD风险。所选择的人体工程学评估方法的结果彼此适度一致。
