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Usability Evaluations of a Newly Developed Wearable Inertial Sensing System for Assessing Elderly Fall Risk

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Advances in Physical Ergonomics & Human Factors (AHFE 2018)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 789))

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Abstract

Falls are the leading cause of safety and health concern in older people. A wearable fall risk assessment system (FRAS) based on inertial sensing for proactive fall prevention is recently developed. The objective of this study is to do usability analysis of FRAS. The system usability scale (SUS), mobile application rating scale (MARS) questionnaires were used along with the open-ended questions. Total 20 young subjects participated in this study. The system usability score from SUS was 63.5 ± 18.1 (out of 100). This score lies in the good region, which is above ok. The average application quality rating from MARS was 3.5 ± 0.5 out of 5. The usability problems are categorized based on the design heuristics, among them flexibility and efficiency of system use were found to be frequently violated. The preliminary results from this study will be used for usability improvement and further tests on the elderly.

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Acknowledgments

The author would like to say thanks to all the volunteers who participated in this study, especially to Jihyeok Jang for his assistance in conducting the experiment. Special thanks to Shuping Xiong for a research supervisor and for arranging the research fund for this study through national research foundation (NRF) of Korea (NRF-2014R1A1A2056193). In addition, the author would also like to acknowledge the travel support by the European funded project names “Keep Control-721577” to attend the Applied Human Factors and Ergonomics Conference in Florida, USA.

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Authors and Affiliations

  1. Human Factors and Ergonomics Laboratory, Department of Industrial and Systems Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea

    Rana Zia Ur Rehman, Jihyeok Jang & Shuping Xiong

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  1. Rana Zia Ur Rehman
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  2. Jihyeok Jang
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  3. Shuping Xiong
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Correspondence to Rana Zia Ur Rehman .

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Editors and Affiliations

  1. Department IELM, Hong Kong University of Science and Technology, Kowloon, Hong Kong

    Ravindra S. Goonetilleke

  2. University of Central Florida, Orlando, Florida, USA

    Waldemar Karwowski

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Rehman, R.Z.U., Jang, J., Xiong, S. (2019). Usability Evaluations of a Newly Developed Wearable Inertial Sensing System for Assessing Elderly Fall Risk. In: Goonetilleke, R., Karwowski, W. (eds) Advances in Physical Ergonomics & Human Factors. AHFE 2018. Advances in Intelligent Systems and Computing, vol 789. Springer, Cham. https://doi.org/10.1007/978-3-319-94484-5_44

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  • DOI: https://doi.org/10.1007/978-3-319-94484-5_44

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