Identification of lateral transfer distance that minimizes twisting and bending motions in workstation design

Lee, Poh Yan (2017) Identification of lateral transfer distance that minimizes twisting and bending motions in workstation design. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The goal of this preliminary study is to identify the potential lateral transfer distance that minimizes both twisting and bending motions of the spine in workstation design. The exposure and understanding through ergonomic intervention by creating fit between workstation and worker could increase productivity and develop safe working environment. This report further discusses the effect of lateral transfer distance on the degree of twisting and bending. Four lateral transfer distances explored in this study which is 50cm, 75cm, 100cm and 125cm. Total of 10 voluntarily male subjects were recruited to participate in this experiment of this project. The subjects wore the Xsens MVN full-body, a wearable motion capture (Mocap) system allowing data collection process. They have to manually carry a 10.9kg box with a handle over the specified distances. The shorter lateral transfer distance of 50cm and 75cm resulted higher value of twisting degree while the longer lateral transfer distance of 100cm and 125cm resulted higher value of bending degree. Therefore, the preliminary results of this project identify that the potential optimum lateral transfer distance that balances the twisting and bending motions of the spine is at the distance of 100cm. Future study and analysis need to be made in order to apply this guideline for the Malaysia population.

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