{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T11:17:44Z","timestamp":1783682264412,"version":"3.55.0"},"reference-count":39,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2021,6,30]],"date-time":"2021-06-30T00:00:00Z","timestamp":1625011200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000024","name":"Canadian Institutes of Health Research","doi-asserted-by":"publisher","award":["173416"],"award-info":[{"award-number":["173416"]}],"id":[{"id":"10.13039\/501100000024","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Accelerometers are being increasingly incorporated into neuroimaging devices to enable real-time filtering of movement artifacts. In this study, we evaluate the reliability of sway metrics derived from these accelerometers in a standard eyes-open balance assessment to determine their utility in multimodal study designs. Ten participants equipped with a head-mounted accelerometer performed an eyes-open standing condition on 7 consecutive days. Sway performance was quantified with 4 standard metrics: root-mean-square (RMS) acceleration, peak-to-peak (P2P) acceleration, jerk, and ellipse area. Intraclass correlation coefficients (ICC) quantified reliability. P2P in both the mediolateral (ICC = 0.65) and anteroposterior (ICC = 0.67) planes yielded the poorest reliability. Both ellipse area and RMS exhibited good reliability, ranging from 0.76 to 0.84 depending on the plane. Finally, jerk displayed the highest reliability with an ICC value of 0.95. Moderate to excellent reliability was observed in all sway metrics. These findings demonstrate that head-mounted accelerometers, commonly found in neuroimaging devices, can be used to reliably assess sway. These data validate the use of head-mounted accelerometers in the assessment of motor control alongside other measures of brain activity such as electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS).<\/jats:p>","DOI":"10.3390\/s21134492","type":"journal-article","created":{"date-parts":[[2021,7,1]],"date-time":"2021-07-01T02:44:39Z","timestamp":1625107479000},"page":"4492","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Internal Consistency of Sway Measures via Embedded Head-Mounted Accelerometers: Implications for Neuromotor Investigations"],"prefix":"10.3390","volume":"21","author":[{"given":"Andrew P.","family":"Lapointe","sequence":"first","affiliation":[{"name":"Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Integrated Concussion Research Program, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jessica N.","family":"Ritchie","sequence":"additional","affiliation":[{"name":"Schulich School of Engineering, University of Calgary, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rachel V.","family":"Vitali","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, University of Iowa, Iowa City, IA 52242, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joel S.","family":"Burma","sequence":"additional","affiliation":[{"name":"Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ateyeh","family":"Soroush","sequence":"additional","affiliation":[{"name":"Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Schulich School of Engineering, University of Calgary, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ibukunoluwa","family":"Oni","sequence":"additional","affiliation":[{"name":"Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Schulich School of Engineering, University of Calgary, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9728-2654","authenticated-orcid":false,"given":"Jeff F.","family":"Dunn","sequence":"additional","affiliation":[{"name":"Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Integrated Concussion Research Program, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada"},{"name":"Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1111\/j.1532-5415.1990.tb01588.x","article-title":"Aging and Postural Control: A Comparison of Spontaneous- and Induced-Sway Balance Tests","volume":"38","author":"Maki","year":"1990","journal-title":"J. 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