{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:58:16Z","timestamp":1760241496874,"version":"build-2065373602"},"reference-count":50,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T00:00:00Z","timestamp":1523836800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Bijzonder Onderzoeksfonds KU Leuven","award":["IDO-13-0358"],"award-info":[{"award-number":["IDO-13-0358"]}]},{"name":"European Union\u2019s Seventh Framework Programme (HIP trial)","award":["260777"],"award-info":[{"award-number":["260777"]}]},{"name":"imec funds 2017"},{"DOI":"10.13039\/501100000781","name":"European Research Council","doi-asserted-by":"publisher","award":["339804"],"award-info":[{"award-number":["339804"]}],"id":[{"id":"10.13039\/501100000781","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010661","name":"Horizon 2020 Framework Programme","doi-asserted-by":"publisher","award":["766456"],"award-info":[{"award-number":["766456"]}],"id":[{"id":"10.13039\/100010661","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Informatics"],"abstract":"<jats:p>In current clinical practice, functional limitations due to chronic musculoskeletal diseases are still being assessed subjectively, e.g., using questionnaires and function scores. Performance-based methods, on the other hand, offer objective insights. Hence, they recently attracted more interest as an additional source of information. This work offers a step towards the shift to performance-based methods by recognizing standardized activities from continuous readings using a single accelerometer mounted on a patient\u2019s arm. The proposed procedure consists of two steps. Firstly, activities are segmented, including rejection of non-informative segments. Secondly, the segments are associated to predefined activities using a multiway pattern matching approach based on higher order discriminant analysis (HODA). The two steps are combined into a multi-layered framework. Experiments on data recorded from 39 patients with spondyloarthritis show results with a classification accuracy of 94.34% when perfect segmentation is assumed. Automatic segmentation has 89.32% overlap with this ideal scenario. However, combining both drops performance to 62.34% due to several badly-recognized subjects. Still, these results are shown to significantly outperform a more traditional pattern matching approach. Overall, the work indicates promising viability of the technique to automate recognition and, through future work, assessment, of functional capacity.<\/jats:p>","DOI":"10.3390\/informatics5020020","type":"journal-article","created":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T12:40:26Z","timestamp":1523882426000},"page":"20","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Recognition of Physical Activities from a Single Arm-Worn Accelerometer: A Multiway Approach"],"prefix":"10.3390","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2149-1462","authenticated-orcid":false,"given":"Lieven","family":"Billiet","sequence":"first","affiliation":[{"name":"STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Kasteelpark Arenberg 10 box 2446, B-3001 Leuven, Belgium"},{"name":"IMEC Leuven, B-3001 Leuven, Belgium"}]},{"given":"Thijs","family":"Swinnen","sequence":"additional","affiliation":[{"name":"Division of Rheumatology, University Hospitals Leuven, Herestraat 49 box 7003, B-3000 Leuven, Belgium"},{"name":"Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 805, B-3000 Leuven, Belgium"},{"name":"Musculoskeletal Rehabilitation Research Unit, Department of Rehabilitation Sciences, KU Leuven, Tervuursevest 101 box 1501, B-3001 Leuven, Belgium"}]},{"given":"Kurt","family":"De Vlam","sequence":"additional","affiliation":[{"name":"Division of Rheumatology, University Hospitals Leuven, Herestraat 49 box 7003, B-3000 Leuven, Belgium"},{"name":"Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 805, B-3000 Leuven, Belgium"}]},{"given":"Rene","family":"Westhovens","sequence":"additional","affiliation":[{"name":"Division of Rheumatology, University Hospitals Leuven, Herestraat 49 box 7003, B-3000 Leuven, Belgium"},{"name":"Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 805, B-3000 Leuven, Belgium"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5939-0996","authenticated-orcid":false,"given":"Sabine","family":"Van Huffel","sequence":"additional","affiliation":[{"name":"STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Kasteelpark Arenberg 10 box 2446, B-3001 Leuven, Belgium"},{"name":"IMEC Leuven, B-3001 Leuven, Belgium"}]}],"member":"1968","published-online":{"date-parts":[[2018,4,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"887","DOI":"10.1007\/s00296-014-2965-7","article-title":"Exercise therapy for spondyloarthritis: A systematic review","volume":"34","author":"Wilson","year":"2014","journal-title":"Rheumatol. 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