How many trials are needed in kinematic analysis of reach-to-grasp?: A study of the drinking task in persons with stroke and non-disabled controls

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Elmgren Frykberg, Gunilla,1957-Uppsala universitet,Medicinska fakulteten (författare)

How many trials are needed in kinematic analysis of reach-to-grasp? : A study of the drinking task in persons with stroke and non-disabled controls

Artikel/kapitelEngelska2021

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2021-06-15
BioMed Central (BMC),2021
electronicrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:umu-185322
https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-185322URI
https://doi.org/10.1186/s12984-021-00895-3DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-449198URI
https://gup.ub.gu.se/publication/306988URI

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Språk:engelska
Sammanfattning på:engelska

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Background: Kinematic analysis of the 3D reach-to-grasp drinking task is recommended in stroke rehabilitation research. The number of trials required to reach performance stability, as an important aspect of reliability, has not been investigated for this task. Thus, the aims of this study were to determine the number of trials needed for the drinking task to reach within-session performance stability and to investigate trends in performance over a set of trials in non-disabled people and in a sample of individuals with chronic stroke. In addition, the between-sessions test–retest reliability in persons with stroke was established.Methods: The drinking task was performed at least 10 times, following a standardized protocol, in 44 non-disabled and 8 post-stroke individuals. A marker-based motion capture system registered arm and trunk movements during 5 pre-defined phases of the drinking task. Intra class correlation statistics were used to determine the number of trials needed to reach performance stability as well as to establish test–retest reliability. Systematic within-session trends over multiple trials were analyzed with a paired t-test.Results: For most of the kinematic variables 2 to 3 trials were needed to reach good performance stability in both investigated groups. More trials were needed for movement times in reaching and returning phase, movement smoothness, time to peak velocity and inter-joint-coordination. A small but significant trend of improvement in movement time over multiple trials was demonstrated in the non-disabled group, but not in the stroke group. A mean of 3 trials was sufficient to reach good to excellent test–retest reliability for most of the kinematic variables in the stroke sample.Conclusions: This is the first study that determines the number of trials needed for good performance stability (non-disabled and stroke) and test–retest reliability (stroke) for temporal, endpoint and angular metrics of the drinking task. For most kinematic variables, 3–5 trials are sufficient to reach good reliability. This knowledge can be used to guide future kinematic studies.

Ämnesord och genrebeteckningar

MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap Sjukgymnastik hsv//swe
MEDICAL AND HEALTH SCIENCES Health Sciences Physiotherapy hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Neurologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Neurology hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Neurovetenskaper hsv//swe
MEDICAL AND HEALTH SCIENCES Basic Medicine Neurosciences hsv//eng
Drinking task
Functional assessment
Kinematics
Non-disabled
Performance stability
Stroke
Test–retest reliability
Upper extremity
Drinking task
Functional assessment
Kinematics
Non-disabled
Performance stability
Stroke
Test–retest reliability
Upper extremity

Biuppslag (personer, institutioner, konferenser, titlar ...)

Grip, HelenaUmeå universitet,Radiofysik,Umeå Univ, Dept Radiat Sci, Biomed Engn, Umeå, Sweden(Swepub:umu)heagrp96 (författare)
Alt Murphy, Margit,1970Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience(Swepub:gu)xaltma (författare)
Uppsala universitetMedicinska fakulteten (creator_code:org_t)

Sammanhörande titlar

Ingår i:Journal of NeuroEngineering and Rehabilitation: BioMed Central (BMC)18:11743-0003

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Av författaren/redakt...: Elmgren Frykberg ...; Grip, Helena; Alt Murphy, Marg ...

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Hälsovetenskap; och Sjukgymnastik

MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Neurologi

MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Medicinska och f ...; och Neurovetenskaper

Artiklar i publikationen: Journal of Neuro ...

Av lärosätet: Umeå universitet; Uppsala universitet; Göteborgs universitet

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