{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T03:09:08Z","timestamp":1782270548185,"version":"3.54.5"},"reference-count":69,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2016,12,15]],"date-time":"2016-12-15T00:00:00Z","timestamp":1481760000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004587","name":"Instituto de Salud Carlos III","doi-asserted-by":"publisher","award":["PI12\/03028"],"award-info":[{"award-number":["PI12\/03028"]}],"id":[{"id":"10.13039\/501100004587","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Altered movement control is typically the first noticeable symptom manifested by Parkinson\u2019s disease (PD) patients. Once under treatment, the effect of the medication is very patent and patients often recover correct movement control over several hours. Nonetheless, as the disease advances, patients present motor complications. Obtaining precise information on the long-term evolution of these motor complications and their short-term fluctuations is crucial to provide optimal therapy to PD patients and to properly measure the outcome of clinical trials. This paper presents an algorithm based on the accelerometer signals provided by a waist sensor that has been validated in the automatic assessment of patient\u2019s motor fluctuations (ON and OFF motor states) during their activities of daily living. A total of 15 patients have participated in the experiments in ambulatory conditions during 1 to 3 days. The state recognised by the algorithm and the motor state annotated by patients in standard diaries are contrasted. Results show that the average specificity and sensitivity are higher than 90%, while their values are higher than 80% of all patients, thereby showing that PD motor status is able to be monitored through a single sensor during daily life of patients in a precise and objective way.<\/jats:p>","DOI":"10.3390\/s16122132","type":"journal-article","created":{"date-parts":[[2016,12,15]],"date-time":"2016-12-15T10:53:16Z","timestamp":1481799196000},"page":"2132","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":46,"title":["Assessing Motor Fluctuations in Parkinson\u2019s Disease Patients Based on a Single Inertial Sensor"],"prefix":"10.3390","volume":"16","author":[{"given":"Carlos","family":"P\u00e9rez-L\u00f3pez","sequence":"first","affiliation":[{"name":"Technical Research Centre for Dependency Care and Autonomous Living, CETPD, Universitat Polit\u00e8cnica de Catalunya, Barcelona Tech., Rambla de l\u2019Exposici\u00f3 59-69, Vilanova i la Geltr\u00fa 08800, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3185-0799","authenticated-orcid":false,"given":"Albert","family":"Sam\u00e0","sequence":"additional","affiliation":[{"name":"Technical Research Centre for Dependency Care and Autonomous Living, CETPD, Universitat Polit\u00e8cnica de Catalunya, Barcelona Tech., Rambla de l\u2019Exposici\u00f3 59-69, Vilanova i la Geltr\u00fa 08800, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Rodr\u00edguez-Mart\u00edn","sequence":"additional","affiliation":[{"name":"Technical Research Centre for Dependency Care and Autonomous Living, CETPD, Universitat Polit\u00e8cnica de Catalunya, Barcelona Tech., Rambla de l\u2019Exposici\u00f3 59-69, Vilanova i la Geltr\u00fa 08800, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreu","family":"Catal\u00e0","sequence":"additional","affiliation":[{"name":"Technical Research Centre for Dependency Care and Autonomous Living, CETPD, Universitat Polit\u00e8cnica de Catalunya, Barcelona Tech., Rambla de l\u2019Exposici\u00f3 59-69, Vilanova i la Geltr\u00fa 08800, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joan","family":"Cabestany","sequence":"additional","affiliation":[{"name":"Technical Research Centre for Dependency Care and Autonomous Living, CETPD, Universitat Polit\u00e8cnica de Catalunya, Barcelona Tech., Rambla de l\u2019Exposici\u00f3 59-69, Vilanova i la Geltr\u00fa 08800, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan","family":"Moreno-Arostegui","sequence":"additional","affiliation":[{"name":"Technical Research Centre for Dependency Care and Autonomous Living, CETPD, Universitat Polit\u00e8cnica de Catalunya, Barcelona Tech., Rambla de l\u2019Exposici\u00f3 59-69, Vilanova i la Geltr\u00fa 08800, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eva","family":"De Mingo","sequence":"additional","affiliation":[{"name":"Clinical Research Unit, Consorci Sanitari del Garraf (Fundaci\u00f3n Sant Antoni Abat ), Carrer de Sant Josep, 21-23, Vilanova i la Geltr\u00fa 08800, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alejandro","family":"Rodr\u00edguez-Molinero","sequence":"additional","affiliation":[{"name":"Clinical Research Unit, Consorci Sanitari del Garraf (Fundaci\u00f3n Sant Antoni Abat ), Carrer de Sant Josep, 21-23, Vilanova i la Geltr\u00fa 08800, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2016,12,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"368","DOI":"10.1136\/jnnp.2007.131045","article-title":"Parkinson\u2019s disease: Clinical features and diagnosis","volume":"79","author":"Jankovic","year":"2008","journal-title":"J. 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