{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T05:56:23Z","timestamp":1776837383066,"version":"3.51.2"},"reference-count":29,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2022,2,24]],"date-time":"2022-02-24T00:00:00Z","timestamp":1645660800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>We describe the development and preliminary evaluation of an innovative low-cost wearable device for gait analysis. We have developed a sensorized sock equipped with 32 piezoresistive textile-based sensors integrated in the heel and metatarsal areas for the detection of signals associated with the contact pressures generated during walking phases. To build the sock, we applied a sensing patch on a commercially available sock. The sensing patch is a stretchable circuit based on the resistive matrix method, in which conductive stripes, based on conductive inks, are coupled with piezoresistive fabrics to form sensing elements. In our sensorized sock, we introduced many relevant improvements to overcome the limitations of the classical resistive matrix method. We preliminary evaluated the sensorized sock on five healthy subjects by performing a total of 80 walking tasks at different speeds for a known distance. Comparison of step count and step-to-step frequency versus reference measurements showed a high correlation between the estimated measure and the real one.<\/jats:p>","DOI":"10.3390\/s22051761","type":"journal-article","created":{"date-parts":[[2022,2,24]],"date-time":"2022-02-24T21:11:07Z","timestamp":1645737067000},"page":"1761","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Exploiting Resistive Matrix Technology to Build a Stretchable Sensorised Sock for Gait Analysis in Daily Life"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6753-2333","authenticated-orcid":false,"given":"Nicola","family":"Carbonaro","sequence":"first","affiliation":[{"name":"Department of Information Engineering, University of Pisa, 56124 Pisa, Italy"},{"name":"Research Center E. Piaggio, University of Pisa, 56124 Pisa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2859-144X","authenticated-orcid":false,"given":"Lucia","family":"Arcarisi","sequence":"additional","affiliation":[{"name":"Department of Information Engineering, University of Pisa, 56124 Pisa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carlotta","family":"Marinai","sequence":"additional","affiliation":[{"name":"Department of Information Engineering, University of Pisa, 56124 Pisa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4798-5196","authenticated-orcid":false,"given":"Marco","family":"Laurino","sequence":"additional","affiliation":[{"name":"National Research Council, Institute of Clinical Physiology, 56124 Pisa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francesco","family":"Di Rienzo","sequence":"additional","affiliation":[{"name":"Department of Information Engineering, University of Pisa, 56124 Pisa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carlo","family":"Vallati","sequence":"additional","affiliation":[{"name":"Department of Information Engineering, University of Pisa, 56124 Pisa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9848-4071","authenticated-orcid":false,"given":"Alessandro","family":"Tognetti","sequence":"additional","affiliation":[{"name":"Department of Information Engineering, University of Pisa, 56124 Pisa, Italy"},{"name":"Research Center E. Piaggio, University of Pisa, 56124 Pisa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Hegde, N., Bries, M., and Sazonov, E. (2016). A comparative review of footwear-based wearable systems. Electronics, 5.","DOI":"10.3390\/electronics5030048"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"594","DOI":"10.1109\/TITB.2011.2112773","article-title":"Automatic detection of temporal gait parameters in poststroke individuals","volume":"15","author":"Fulk","year":"2011","journal-title":"IEEE Trans. Inf. Technol. Biomed."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"408","DOI":"10.1016\/j.gaitpost.2008.10.061","article-title":"Variability in spatiotemporal step characteristics and its relationship to walking performance post-stroke","volume":"29","author":"Balasubramanian","year":"2009","journal-title":"Gait Posture"},{"key":"ref_4","unstructured":"Perry, J., and Burnfield, J.M. (1993). Gait analysis: Normal and pathological function. Dev. Med. Child Neurol., 35."},{"key":"ref_5","unstructured":"(2017). Global Action Plan on the Public Health Response to Dementia 2017\u20132025, World Health Organization. Technical Report."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"939","DOI":"10.1016\/S1474-4422(18)30295-3","article-title":"Global, regional, and national burden of Parkinson\u2019s disease, 1990\u20132016: A systematic analysis for the Global Burden of Disease Study 2016","volume":"17","author":"Dorsey","year":"2018","journal-title":"Lancet Neurol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"326","DOI":"10.1016\/j.neubiorev.2016.02.012","article-title":"Gait and cognition: Mapping the global and discrete relationships in ageing and neurodegenerative disease","volume":"64","author":"Morris","year":"2016","journal-title":"Neurosci. Biobehav. Rev."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"193966","DOI":"10.1109\/ACCESS.2020.3032202","article-title":"Gait analysis for early neurodegenerative diseases classification through the kinematic theory of rapid human movements","volume":"8","author":"Dentamaro","year":"2020","journal-title":"IEEE Access"},{"key":"ref_9","first-page":"76","article-title":"Studies of sensory and motor cortex physiology: With observations on akinesia in Parkinson\u2019s disease","volume":"43","author":"Hallett","year":"1991","journal-title":"Electroencephalogr. Clin. Neurophysiol. Suppl."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"3675","DOI":"10.1589\/jpts.27.3675","article-title":"Gait speed and related factors in Parkinson\u2019s disease","volume":"27","author":"Paker","year":"2015","journal-title":"J. Phys. Ther. Sci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1426","DOI":"10.2522\/ptj.20050277","article-title":"Locomotor training in people with Parkinson disease","volume":"86","author":"Morris","year":"2006","journal-title":"Phys. Ther."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"222","DOI":"10.1177\/2150131915577207","article-title":"Gait characteristics in patients with chronic obstructive pulmonary disease","volume":"6","author":"Nantsupawat","year":"2015","journal-title":"J. Prim. Care Community Health"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"141","DOI":"10.4103\/1817-1737.82448","article-title":"Gait speed as a functional capacity indicator in patients with chronic obstructive pulmonary disease","volume":"6","author":"Ilgin","year":"2011","journal-title":"Ann. Thorac. Med."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1131","DOI":"10.1136\/thoraxjnl-2015-207046","article-title":"Gait speed and readmission following hospitalisation for acute exacerbations of COPD: A prospective study","volume":"70","author":"Kon","year":"2015","journal-title":"Thorax"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/s41598-021-98359-0","article-title":"Real-world gait speed estimation, frailty and handgrip strength: A cohort-based study","volume":"11","author":"Soltani","year":"2021","journal-title":"Sci. Rep."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"653","DOI":"10.1136\/bmj.292.6521.653","article-title":"Six minute walking test for assessing exercise capacity in chronic heart failure","volume":"292","author":"Lipkin","year":"1986","journal-title":"Br. Med. J. (Clin. Res. Ed.)"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"270","DOI":"10.1034\/j.1399-3003.1999.14b06.x","article-title":"Six minute walking distance in healthy elderly subjects","volume":"14","author":"Troosters","year":"1999","journal-title":"Eur. Respir. J."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1123\/mc.2020-0060","article-title":"Comparison of an inertial measurement unit system and baropodometric platform for measuring spatiotemporal parameters and walking speed in healthy adults","volume":"25","author":"Correale","year":"2020","journal-title":"Mot. Control"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"176","DOI":"10.1016\/j.procs.2015.03.116","article-title":"Passive marker based optical system for gait kinematics for lower extremity","volume":"45","author":"Prakash","year":"2015","journal-title":"Procedia Comput. Sci."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1016\/j.pmcj.2016.01.007","article-title":"Smart-surface: Large scale textile pressure sensors arrays for activity recognition","volume":"30","author":"Cheng","year":"2016","journal-title":"Pervasive Mob. Comput."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"45664","DOI":"10.1109\/ACCESS.2020.2976194","article-title":"A Smart Bed for Non-Obtrusive Sleep Analysis in Real World Context","volume":"8","author":"Laurino","year":"2020","journal-title":"IEEE Access"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Carbonaro, N., Laurino, M., Arcarisi, L., Menicucci, D., Gemignani, A., and Tognetti, A. (2021). Textile-Based Pressure Sensing Matrix for In-Bed Monitoring of Subject Sleeping Posture and Breathing Activity. Appl. Sci., 11.","DOI":"10.3390\/app11062552"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Carbonaro, N., Arcarisi, L., Di Rienzo, F., Virdis, A., Vallati, C., and Tognetti, A. (2020, January 25\u201328). A preliminary study on a new lightweight and flexible sensing sock for gait analysis. Proceedings of the 2020 IEEE Sensors, Rotterdam, The Netherlands.","DOI":"10.1109\/SENSORS47125.2020.9278682"},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Zhou, B., and Lukowicz, P. (2017). Textile pressure force mapping. Smart Textiles, Springer.","DOI":"10.1007\/978-3-319-50124-6_3"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Eizentals, P., Katashev, A., and Oks, A. (2019, January 20\u201321). A Smart Socks System for Running Gait Analysis. Proceedings of the 7th International Conference on Sport Sciences Research and Technology Support, Austria, Austria.","DOI":"10.5220\/0008070000470054"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"D\u2019Addio, G., Evangelista, S., Donisi, L., Biancardi, A., Andreozzi, E., Pagano, G., Arpaia, P., and Cesarelli, M. (2019, January 23\u201327). Development of a Prototype E-Textile Sock. Proceedings of the 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Berlin, Germany.","DOI":"10.1109\/EMBC.2019.8856739"},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Langer, J., Eibensteiner, F., Peterka, J., and Knaack, P. (2018, January 17\u201319). Pressure sensitive shoe insoles and socks for rehabilitation applications. Proceedings of the 2018 IEEE 12th International Conference on Application of Information and Communication Technologies (AICT), Almaty, Kazakhstan.","DOI":"10.1109\/ICAICT.2018.8747024"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"464","DOI":"10.1109\/TBCAS.2016.2615603","article-title":"Battery-free smart sock for abnormal relative plantar pressure monitoring","volume":"11","author":"Lin","year":"2016","journal-title":"IEEE Trans. Biomed. Circuits Syst."},{"key":"ref_29","unstructured":"Nordin, M., and Frankel, V.H. (2001). Basic Biomechanics of the Musculoskeletal System, Lippincott Williams & Wilkins."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/22\/5\/1761\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T22:26:00Z","timestamp":1760135160000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/22\/5\/1761"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,2,24]]},"references-count":29,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2022,3]]}},"alternative-id":["s22051761"],"URL":"https:\/\/doi.org\/10.3390\/s22051761","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,2,24]]}}}