Reliability of sitting posture between physical therapist video-based evaluation and SMART IMU system using rapid...

Area of Science:

• Occupational Health
• Biomechanics
• Ergonomics

Background:

• Prolonged sitting in office environments is linked to work-related musculoskeletal disorders (WMSDs).
• Traditional ergonomic assessments, like the Rapid Upper Limb Assessment (RULA), can be subjective.
• Objective and reliable methods are needed to assess sitting postures and associated risks.

Purpose of the Study:

• To compare the reliability and accuracy of Inertial Measurement Unit (IMU) technology with traditional physical therapist evaluations for assessing sitting postures.
• To determine the effectiveness of integrating IMU technology with the RULA method for ergonomic risk assessment.
• To evaluate ergonomic risks associated with prolonged sitting in office settings.

Main Methods:

• Twenty participants were monitored while sitting and working in an office environment.
• Neck and body angle data were collected using Inertial Measurement Unit (IMU) technology.
• Data were analyzed using the RULA protocol to assess ergonomic risks and compared with physical therapist evaluations.

Main Results:

• A strong correlation was found between physical therapist video-based evaluations and data from the SMART IMU system.
• The study demonstrated the feasibility of using IMU technology for objective sitting posture assessment.
• The integrated approach effectively captured and compared neck and trunk posture scores for ergonomic risk evaluation.

Conclusions:

• Integrating traditional ergonomic assessment tools with modern IMU technology provides a comprehensive analysis of ergonomic risks.
• IMU technology offers a reliable and accurate method for assessing sitting postures in occupational settings.
• This combined approach enhances the evaluation of WMSDs risks associated with prolonged sitting.