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A Machine Learning Approach for Near-Fall Detection Based on Inertial and Force Data While Using a Conventional Rollator

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Part of the Biosystems & Biorobotics book series (BIOSYSROB,volume 28)

Abstract

Falls are a major concern for society. They may result in death or in several injuries that require motor assistance, representing an economic burden. To overcome these problems, a diversity of fall prevention strategies implemented on assistive devices such as smart walkers, have been widely explored. This study presents a novel strategy by using exclusively information from wearable sensors to detect near-falls while the subject uses a conventional rollator. A comparative analysis was performed to identify the most suitable classifier and the most relevant subset of features for detecting near-fall events. Ten able-bodied subjects performed 240 trials and simulated 180 near-falls with the rollator. The Ensemble Learning with the first 51 ranked features by the mRMR presented the best performance results (Accuracy = 95.18%; Detection time before recovery= 1.48 ± 0.68 s). The results show that this strategy is suitable for use with conventional rollators, which are more used than smart walkers.

This work has been supported by the FCT—Fundação para a Ciência e Tecnologia—with the scholarship reference PD/BD/141515/2018, by the FEDER funds through the Programa Operacional Regional do Norte and national funds from FCT with the SmartOs project under Grant NORTE-01-0145-FEDER-030386, and under the national support to R&D units grant, through the reference project UIDB/04436/2020 and UIDP/04436/2020.

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Correspondence to Nuno Ferrete Ribeiro .

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Ribeiro, N.F., Pereira, A., Figueiredo, J., Afonso, J.A., Santos, C.P. (2022). A Machine Learning Approach for Near-Fall Detection Based on Inertial and Force Data While Using a Conventional Rollator. In: Torricelli, D., Akay, M., Pons, J.L. (eds) Converging Clinical and Engineering Research on Neurorehabilitation IV. ICNR 2020. Biosystems & Biorobotics, vol 28. Springer, Cham. https://doi.org/10.1007/978-3-030-70316-5_55

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  • DOI: https://doi.org/10.1007/978-3-030-70316-5_55

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-70315-8

  • Online ISBN: 978-3-030-70316-5

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