[A device for measuring body posture during work].

Area of Science:

• Occupational Health
• Ergonomics
• Biomechanics

Background:

• Long-term trunk anteversion is a primary cause of lower back pain.
• Assessing spinal load in professional settings is crucial for injury prevention.

Purpose of the Study:

• To design, perform, and test a tool for measuring trunk inclination duration and angles.
• To evaluate the tool's utility in identifying ergonomic risks associated with static spinal load.

Main Methods:

• Development of a tool featuring a gravitating inclination sensor and a quartz time meter.
• The tool is attached to the lumbar spine using webbings.
• Testing involved setting the inclination sensor at 10, 20, and 30 degrees.

Main Results:

• The tool accurately measures trunk inclination duration at various angles.
• Observations at 10, 20, and 30 degrees are sufficient to identify high-risk workstations.
• The results correlate trunk posture with static load on the lower spine.

Conclusions:

• The developed tool effectively quantifies trunk inclination, aiding in the assessment of spinal load.
• The tool's simplicity and convenience support its extensive use in ergonomic practice.
• Identifying and mitigating risks from long-lasting trunk anteversion can prevent lower back pain.