一种评估手部、腕部、前臂和肘部肌肉骨骼疾病风险的方法，主要与重复性用力有关。
- 方法： 人体工程学
工作压力指数（JSI）
工作压力指数（JSI）
- 持续改进, 人体工程学, 健康科学, 人为因素, 精益制造, 流程改进, 质量管理, 风险管理, 安全
目标
如何使用
- 根据用力强度、每个周期的用力持续时间、每分钟的努力程度、手/腕姿势、工作速度和每天的任务持续时间计算得分。如果得分高于临界值，则表示工作具有危险性。
优点
- 数据收集后，应用相对简单快捷；重点关注上肢远端疾病的关键风险因素；提供单一风险评分。
缺点
- 考虑的风险因素有限；可能不适合所有类型的上肢任务；某些因素依赖于主观估计。
类别
- 人体工程学
最适合：
- 评估因工作任务导致上肢远端肌肉骨骼疾病的风险。
The Job Strain Index (JSI) is particularly beneficial in various sectors that involve manual labor, such as manufacturing, construction, healthcare, and warehousing, where workers are susceptible to musculoskeletal disorders. This methodology is most effectively applied during the ergonomics assessment phase of workplace design or during the evaluation of existing job tasks to identify risks associated with specific work activities. It is typically initiated by occupational health and safety professionals, ergonomists, or human factors specialists, often in collaboration with workers, supervisors, and management to ensure a comprehensive understanding of job demands and work environments. The process includes observational studies and data collection on workers’ tasks, thereby engaging different stakeholders in the evaluation process, including engineers looking to improve workstation designs and occupational therapists assessing the impact of job requirements on individual health. The JSI score serves as a quantifiable measure that can drive interventions, such as redesigning tasks to minimize risk factors, implementing job rotation strategies, or offering training to modify manual handling techniques. Its user-friendly nature allows for quick on-site evaluations, making it a practical tool during safety audits or in the development of workplace initiatives that aim to enhance worker well-being while maintaining productivity standards. By providing a clear numerical risk assessment, JSI aids in prioritizing actions needed for improvement, offering a straightforward approach to risk management in operational settings.
该方法的关键步骤
- 使用标准量表确定每项任务的运动强度。
- 评估每个已确定任务的每个周期中的用力持续时间。
- 统计每分钟在相关任务上投入的努力次数。
- 使用既定标准评估每次任务中的手腕姿势。
- 作为分析的一部分，测量每项任务的工作速度。
- 估算每天执行该项任务所需的时间。
- 综合所有评估参数，计算工作压力指数得分。
- 将计算出的分数与既定的阈值进行比较，以确定风险等级。
专业提示
- 将任务观察与 JSI 计算相结合，以捕捉现实世界中用力水平的变化，并为设计调整提供信息。
- Utilize the JSI data as a baseline for iterative design changes and re-evaluate periodically to track the effectiveness of ergonomic interventions.
- 与多学科团队合作，评估环境和工作流程等特定情境变量，提高 JSI 应用的准确性。
历史背景
（如果日期未知或不相关，例如“流体力学”，则提供其显著出现的近似估计）
