POSTURAL STABILITY EFFECTS IN LOW SEAM MINING TASKS

浅煤层采矿任务中姿势稳定性的影响

• 批准号: 6344534
• 负责人: AMIT BHATTACHARYA
• 金额: $ 33.43万
• 依托单位: UNIVERSITY OF CINCINNATI
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-30 至 2002-09-29
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6344534
• 关键词: accidental falls; balance; clinical research; disease /disorder proneness /risk; gait; human subject; minings; occupational health /safety; posture

The manual material handling tasks in underground low seam mines present a myriad of ergonomic risk factors which places inordinate demands on miners' neuromuscular system. Material handling and scaling tasks in restricted posture will cause potential loss of stability/balance to increase therefore, lifting task analysis should include information about postural stability/balance. Currently such information does not exist for material handling in a static stooped posture and dynamic (gait) stooped posture while exposed to individual and/or combined ergonomic risk factors commonly found in an underground mine. The proposed study provides the design to collect such information in a series of experiments (41 hours of testing on each worker) with miner workers. For example, all experimental conditions (encompassing risk factors such as, restricted work postures, task type, surface slipperiness, surface unevenness, and environmental lighting and glare) to be evaluated in the proposed study will be rank-ordered for postural instability and/or loss of balance using established objective criteria described in Section D. Also, number of slips/falls experienced during the performance of simulated industrial tasks (described in Section D) will allow us to determine the relationship between measures of postural instability and/or loss of balance and actual incidence of slips/falls in the simulated environment. The results will provide enhancement (by adding new risk factor effects) to our existing statistical model of prediction of postural instability assoicated with work place risk factors encompassing environmental, job-task factors. These findings will provide the framework within which future mining worker- population-based prospective studies can be designed to address the following issues. A) Provide guidelines for mining workplace design to allow appropriate sufficient floor spacing so that workers can increase their base of support, minimizing the potential of postural instability. B) The results can be used as scientific data input about postural instability under various combinations of mine related risk factors as input into the MSHA's training programs where softwares are being developed to include human factors issues.

地下低接缝矿中的手动材料处理任务呈现出无数的符合人体工程学的风险因素，这对矿工的神经肌肉系统提出了过多的需求。 限制姿势中的材料处理和缩放任务将导致稳定/平衡的潜在丧失，因此，提升任务分析应包括有关姿势稳定/平衡的信息。 目前，在静态弯曲的姿势和动态（步态）弯曲的姿势中，在暴露于地下矿山中常见的个体和/或组合的人体工程学危险因素的同时，尚不存在这些信息。拟议的研究为矿工工人提供了一系列实验（对每个工人的测试41小时的测试），为收集此类信息提供了设计。 例如，在拟议的研究中，将评估所有实验条件（包括，限制性的工作姿势，限制性的工作姿势，诸如限制的风险因素，诸如限制的危险因素，诸如限制的风险因素，诸如限制的危险因素，诸如限制的危险因素，诸如限制的危险因素，诸如限制性的工作姿势，诸如限制的危险因素，表面不平衡，表面不平衡以及环境照明和眩光），将在姿势不稳定和/或在SLIPS/SIMBAL DIDECT中的既定时间范围内的阶段（允许在Slips falls of Simal semply of Simal semply of Simal seprionds）中进行等级的姿势不稳定性和/或丧失平衡的损失。姿势不稳定和/或在模拟环境中滑移/跌落的实际发生率的损失和/或损失。结果将为我们现有的姿势不稳定性预测的统计模型提供增强（通过增加新的风险因素影响），该模型与工作地点风险因素相关的姿势不稳定因素，包括环境，工作任务因素。 这些发现将提供以下框架，在该框架中，可以将未来的基于人口的前瞻性研究设计以解决以下问题。 a）提供采矿工作场所设计的指南，以允许适当的地板间距，以便工人可以增加支持基础，从而最大程度地减少姿势不稳定的潜力。 b）结果可以用作有关姿势不稳定的科学数据输入，在我相关的风险因素的各种组合下，作为MSHA培训计划的输入，其中正在开发软件以包括人为因素问题。