{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,25]],"date-time":"2025-10-25T12:15:29Z","timestamp":1761394529546,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2014,9,11]],"date-time":"2014-09-11T00:00:00Z","timestamp":1410393600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The trajectory of the whole body center of mass (CoM) is useful as a reliable metric of postural stability. If the evaluation of a subject-specific CoM were available outside of the laboratory environment, it would improve the assessment of the effects of physical rehabilitation. This paper develops a method that enables tracking CoM position using low-cost sensors that can be moved around by a therapist or easily installed inside a patient\u2019s home. Here, we compare the accuracy of a personalized CoM estimation using the statically equivalent serial chain (SESC) method and measurements obtained with the Kinect to the case of a SESC obtained with high-end equipment (Vicon). We also compare these estimates to literature-based ones for both sensors. The method was validated with seven able-bodied volunteers for whom the SESC was identified using 40 static postures. The literature-based estimation with Vicon measurements had a average error 24.9 \u00b1 3.7 mm; this error was reduced to 12.8 \u00b1 9.1 mm with the SESC identification. When using Kinect measurements, the literature-based estimate had an error of 118.4 \u00b1 50.0 mm, while the SESC error was 26.6 \u00b1 6.0 mm. The subject-specific SESC estimate using low-cost sensors has an equivalent performance as the literature-based one with high-end sensors. The SESC method can improve CoM estimation of elderly and neurologically impaired subjects by considering variations in their mass distribution.<\/jats:p>","DOI":"10.3390\/s140916955","type":"journal-article","created":{"date-parts":[[2014,9,11]],"date-time":"2014-09-11T12:04:41Z","timestamp":1410437081000},"page":"16955-16971","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":57,"title":["Whole Body Center of Mass Estimation with Portable Sensors: Using the Statically Equivalent Serial Chain and a Kinect"],"prefix":"10.3390","volume":"14","author":[{"given":"Alejandro","family":"Gonz\u00e1lez","sequence":"first","affiliation":[{"name":"INRIA (Institut National de Recherche en Informatique et en Automatique), DEMAR Team, Montpellier 34095, France"},{"name":"LIRMM (Laboratoire d'Informatique, de Robotique et de Micro\u00e9lectronique de Montpellier), University of Montpellier 2, Montpellier 34090, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mitsuhiro","family":"Hayashibe","sequence":"additional","affiliation":[{"name":"INRIA (Institut National de Recherche en Informatique et en Automatique), DEMAR Team, Montpellier 34095, France"},{"name":"LIRMM (Laboratoire d'Informatique, de Robotique et de Micro\u00e9lectronique de Montpellier), University of Montpellier 2, Montpellier 34090, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincent","family":"Bonnet","sequence":"additional","affiliation":[{"name":"Movement to Health (M2H) Laboratory, EuroMov, University of Montpellier 1, Montpellier 34090, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philippe","family":"Fraisse","sequence":"additional","affiliation":[{"name":"INRIA (Institut National de Recherche en Informatique et en Automatique), DEMAR Team, Montpellier 34095, France"},{"name":"LIRMM (Laboratoire d'Informatique, de Robotique et de Micro\u00e9lectronique de Montpellier), University of Montpellier 2, Montpellier 34090, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2014,9,11]]},"reference":[{"key":"ref_1","unstructured":"(2004). 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