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dc.contributor.author
Schneider, Sophie
dc.contributor.author
Popp, Werner
dc.contributor.author
Brogioli, Michael
dc.contributor.author
Albisser, Urs
dc.contributor.author
Demkó, László
dc.contributor.author
Debecker, Isabelle
dc.contributor.author
Velstra, Inge-Marie
dc.contributor.author
Gassert, Roger
dc.contributor.author
Curt, Armin
dc.date.accessioned
2018-12-13T11:29:17Z
dc.date.available
2018-12-11T20:17:45Z
dc.date.available
2018-12-13T11:29:17Z
dc.date.issued
2018-12-10
dc.identifier.issn
1664-2295
dc.identifier.other
10.3389/fneur.2018.01039
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/310173
dc.identifier.doi
10.3929/ethz-b-000310173
dc.description.abstract
Physical activity (PA) has been shown to have a positive influence on functional recovery in patients after a spinal cord injury (SCI). Hence, it can act as a confounder in clinical intervention studies. Wearable sensors are used to quantify PA in various neurological conditions. However, there is a lack of knowledge about the inter-day reliability of PA measures. The objective of this study was to investigate the single-day reliability of various PA measures in patients with a SCI and to propose recommendations on how many days of PA measurements are required to obtain reliable results. For this, PA of 63 wheelchair-dependent patients with a SCI were measured using wearable sensors. Patients of all age ranges (49.3 ± 16.6 years) and levels of injury (from C1 to L2, ASIA A-D) were included for this study and assessed at three to four different time periods during inpatient rehabilitation (2 weeks, 1 month, 3 months, and if applicable 6 months after injury) and after in-patient rehabilitation in their home-environment (at least 6 months after injury). The metrics of interest were total activity counts, PA intensity levels, metrics of wheeling quantity and metrics of movement quality. Activity counts showed consistently high single-day reliabilities, while measures of PA intensity levels considerably varied depending on the rehabilitation progress. Single-day reliabilities of metrics of movement quantity decreased with rehabilitation progress, while metrics of movement quality increased. To achieve a mean reliability of 0.8, we found that three continuous recording days are required for out-patients, and 2 days for in-patients. Furthermore, the results show similar weekday and weekend wheeling activity for in- and out-patients. To our knowledge, this is the first study to investigate the reliability of an extended set of sensor-based measures of PA in both acute and chronic wheelchair-dependent SCI patients. The results provide recommendations for sensor-based assessments of PA in clinical SCI studies.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Frontiers Media SA
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
spinal cord injury
en_US
dc.subject
rehabilitation
en_US
dc.subject
physical activity
en_US
dc.subject
intervention studies
en_US
dc.subject
wearable sensors
en_US
dc.subject
reliability
en_US
dc.title
Reliability of Wearable-Sensor-Derived Measures of Physical Activity in Wheelchair-Dependent Spinal Cord Injured Patients
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Frontiers in Neurology
ethz.journal.volume
9
en_US
ethz.journal.abbreviated
Front. neurol.
ethz.pages.start
1039
en_US
ethz.size
13 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.publication.place
Lausanne
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::03827 - Gassert, Roger / Gassert, Roger
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::03827 - Gassert, Roger / Gassert, Roger
en_US
ethz.date.deposited
2018-12-11T20:18:03Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2018-12-13T11:30:22Z
ethz.rosetta.lastUpdated
2019-01-03T13:34:54Z
ethz.rosetta.versionExported
true
ethz.COinS
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