Spinal loading when lifting from industrial storage bins

Area of Science:

• Ergonomics and Biomechanics
• Occupational Health and Safety

Background:

• Industrial lifting tasks contribute to significant spinal loading and potential injury.
• Understanding biomechanical factors in lifting is crucial for developing safer work practices.

Purpose of the Study:

• To investigate the impact of lifting styles and industrial bin design on three-dimensional spinal loading.
• To identify optimal bin configurations and lifting strategies for minimizing spinal forces.

Main Methods:

• Utilized an EMG-assisted biomechanical model to estimate spinal compression and shear forces.
• Examined two lifting styles (one-hand vs. two-hand, one-foot vs. two-feet) and bin design factors (load region, bin height).
• Evaluated one-handed lifting with and without body support in Phase II.

Main Results:

• Bin design, particularly the load region, had the greatest effect on spinal loading.
• Lifting from the upper front region minimized spinal loading across all styles.
• Supported one-handed lifting techniques resulted in lower compressive and shear loads compared to two-handed lifting.

Conclusions:

• Optimizing industrial bin design for lifting from the upper front region is more effective in reducing spinal loading than modifying lifting styles alone.
• Incorporating features like handholds can promote supported lifting techniques, further reducing spinal loading.