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The Key Factors in Physical Activity Type Detection Using Real-Life Data: A Systematic Review
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 4499933
Author(s) Allahbakhshi, Hoda; Hinrichs, Timo; Huang, Haosheng; Weibel, Robert
Author(s) at UniBasel Hinrichs, Timo
Year 2019
Title The Key Factors in Physical Activity Type Detection Using Real-Life Data: A Systematic Review
Journal Frontiers in physiology
Volume 10
Pages / Article-Number 75
Abstract Background:; Physical activity (PA) is paramount for human health and well-being. However, there is a lack of information regarding the types of PA and the way they can exert an influence on functional and mental health as well as quality of life. Studies have measured and classified PA type in controlled conditions, but only provided limited insight into the validity of classifiers under real-life conditions. The advantage of utilizing the type dimension and the significance of real-life study designs for PA monitoring brought us to conduct a systematic literature review on PA type detection (PATD) under real-life conditions focused on three main criteria: methods for detecting PA types, using accelerometer data collected by portable devices, and real-life settings.; Method:; The search of the databases, Web of Science, Scopus, PsycINFO, and PubMed, identified 1,170 publications. After screening of titles, abstracts and full texts using the above selection criteria, 21 publications were included in this review.; Results:; This review is organized according to the three key elements constituting the PATD process using real-life datasets, including data collection, preprocessing, and PATD methods. Recommendations regarding these key elements are proposed, particularly regarding two important PA classes, i.e., posture and motion activities. Existing studies generally reported high to near-perfect classification accuracies. However, the data collection protocols and performance reporting schemes used varied significantly between studies, hindering a transparent performance comparison across methods.; Conclusion:; Generally, considerably less studies focused on PA types, compared to other measures of PA assessment, such as PA intensity, and even less focused on real-life settings. To reliably differentiate the basic postures and motion activities in real life, two 3D accelerometers (thigh and hip) sampling at 20 Hz were found to provide the minimal sensor configuration. Decision trees are the most common classifier used in practical applications with real-life data. Despite the significant progress made over the past year in assessing PA in real-life settings, it remains difficult, if not impossible, to compare the performance of the various proposed methods. Thus, there is an urgent need for labeled, fully documented, and openly available reference datasets including a common evaluation framework.
ISSN/ISBN 1664-042X
Full Text on edoc No
Digital Object Identifier DOI 10.3389/fphys.2019.00075
PubMed ID

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