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Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

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Ergonomics evaluation of lawn mower operator's working posture using JACK software and kinect interface.

Harish Kumar Banga¹, Raj Kumar², Parveen Kalra²

¹Fashion and Lifestyle Accessory Design Department, National Institute of Fashion Technology, Mumbai, India.

Work (Reading, Mass.)

|May 9, 2022

Summary

Real-time motion tracking with Kinect v1 and JACK software effectively evaluates ergonomic risks associated with manual lawn mower operation, confirming operator exposure to whole-body work-related musculoskeletal disorders (WMSDs).

Keywords:

Work-related musculoskeletal disorders lower back analysis rapid upper limb assessment static strength prediction

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Last Updated: Sep 24, 2025

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Area of Science:

Biomechanics
Ergonomics
Human-Computer Interaction

Background:

Real-time motion tracking is crucial for assessing ergonomic risks in manual tasks.
Identifying work-related musculoskeletal disorders (WMSDs) exposure is vital for worker health.

Purpose of the Study:

To evaluate the suitability of Kinect v1 interfaced with JACK software for real-time ergonomic assessment.
To analyze the strenuous operation of manual lawn mowers.

Main Methods:

Kinect v1 captured operator movements during manual lawn mower use.
JACK software analyzed captured data to predict forces and assess ergonomic risks.
Evaluated whole-body WMSDs exposure and Rapid Upper Limb Assessment (RULA) scores.

Main Results:

Confirmed significant operator exposure to whole-body WMSDs during manual lawn mower operation.
Demonstrated the potential for identifying specific ergonomic issues.

Conclusions:

The Kinect v1 and JACK system offers a rapid and accessible method for real-time ergonomic evaluation.
This approach aids industrial staff in estimating WMSDs risk levels for various operations.