在静态姿势中保持姿势负荷对并发执行功能任务执行效能的影响
Yihun Jeong1, Haeseok Jeong2, Doo Won Han3
1Department of Industrial Engineering, Keimyung University, 1095 Dalgubeol-daero, Dalseo-gu, Daegu, 42601, South Korea.
Applied ergonomics
|March 13, 2025
概括
增加的姿势负荷会对执行功能产生负面影响,例如记忆,转移和抑制. 管理身体需求是提高认知任务表现的关键.
科学领域:
- 人体工程学和人类因素
- 认知心理学 认知心理学
- 职业健康 职业健康 职业健康
背景情况:
- 执行职能对于日常任务和职业表现至关重要.
- 在许多职业中常见的姿势负荷可能会干扰认知过程.
- 了解体力劳动和认知负载之间的相互作用对于工作场所的安全和生产力至关重要.
研究的目的:
- 调查不同程度的姿势负荷对执行职能任务性能的影响.
- 量化静态姿势持有与增加的姿势需求对认知能力的影响.
- 探索身体压力和认知控制机制之间的关系.
主要方法:
- 用三个执行功能任务 (字母记忆,数字-字母,Stroop) 来评估更新,转移和抑制.
- 根据OWAS分类,参与者在三个静态姿势负荷条件下 (PL1,PL2,PL3) 执行认知任务.
- 绩效指标包括准确性 (总分) 和针对特定任务条件的反应时间.
主要成果:
- 较高的姿势负荷 (PL2和PL3) 与PL1.1相比,在所有执行功能任务中显著降低了性能.
- 字母记忆任务得分下降了4.56% (PL2) 和13.68% (PL3).
- 数字-字母任务切换反应时间增加了1.47% (PL2) 和15.63% (PL3);Stroop不相称的反应时间增加了4.15% (PL2) 和13.44% (PL3).
结论:
- 在静态姿势持有期间增加的姿势负荷会对执行功能产生不利影响,包括更新,转移和抑制.
- 这些发现强调了身体姿势需求和认知表现之间的重要联系.
- 管理姿势负荷的策略可能有助于提高职业环境中的认知任务性能.
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