手握和质量中心位置在操纵外科台片段时对肌肉活动的影响
Jacob J Banks1, Heather Kooiker2, Neal E Wiggermann1
1Baxter International Inc, Deerfield, IL, USA.
IISE transactions on occupational ergonomics and human factors
|October 9, 2024
概括
优化与物体质量中心相对的手握位置,可以减少肌肉疲劳. 设计干预可以降低体力,提高可用性,防止手动处理时肌肉骨损伤.
科学领域:
- 人体工程学和生物力学
- 职业健康和安全问题 职业健康和安全问题
背景情况:
- 与质量中心 (CoM) 相对的手握位置显著影响干部和上肢肌肉活动.
- 以前的研究表明,在前后轴上与CoM对齐抓地力,可以最大限度地减少肌肉的运动.
研究的目的:
- 调查手握和CoM对齐如何影响手动处理任务期间的肌肉活动.
- 探索设计特征对用户劳动力和肌肉骨损伤风险的影响.
主要方法:
- 基于与物体相对不同的手握位置的肌肉活动模式的分析 CoM.
- 评估设计元素,如影响抓地力和CoM交互的手柄和机制.
主要成果:
- 在前/后方向最小化手握和CoM之间的距离减少肌肉活动.
- 靠近与远距离抓握所需的努力是肌肉特异性的.
- 设计特征显然会影响用户的生物力学和感知力度.
结论:
- 手柄的战略性放置,与CoM保持一致,对于减少身体疲劳至关重要.
- 设计修改可以提高可用性,并减轻手动物料处理中肌肉骨损伤的风险.
- 了解抓地-CoM动态是设计更安全,更有效的工作场所的关键.
相关概念视频
01:23Assessment of the Abdomen III: Palpation
Palpation is a crucial tactile examination method for assessing abdominal organs and detecting conditions like tenderness, distention, masses, or fluid. It involves both light and deep palpation techniques, each serving specific diagnostic purposes. Light palpation helps identify tenderness and other surface-level indicators, while deep palpation locates and assess abdominal masses and organ boundaries. A skilled professional can gather valuable insights through palpation, including evaluating...
01:27Assessment of the Cardiovascular System III: Palpation
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above the...
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above the...