Usability evaluation of a vibrotactile feedback system in stroke subjects

Jeremia P. Held, Bart Klaassen, Bert-Jan van Beijnum, Andreas R. Luft, Peter H. Veltink

Research output: Contribution to journalArticleAcademicpeer-review

27 Downloads (Pure)

Abstract

Background: To increase the functional capabilities of stroke subjects during activities of daily living, patients receive rehabilitative training to recover adequate motor control. With the goal to motivate self-training by use of the arm in daily life tasks, a sensor system (Arm Usage Coach, AUC) was developed that provides VibroTactile (VT) feedback if the patient does not move the affected arm above a certain threshold level. The objective of this study is to investigate the usability of this system in stroke subjects.

Method: The study was designed as a usability and user acceptance study of feedback modalities. Stroke subjects with mild to moderate arm impairments were enrolled. The subjects wore two AUC devices one on each wrist. VT feedback was given by the device on the affected arm. A semi-structured interview was performed before and after a measurement session with the AUC. In addition, the System Usability Scale (SUS) questionnaire was given.

Results: Ten ischemic chronic stroke patients (39 ± 38 months after stroke) were recruited. Four out of 10 subjects have worn the VT feedback on their dominant, affected arm. In the pre-measurement interview, eight participants indicated a preference for acoustic or visual over VT feedback. In the post evaluation interview, nine of 10 participants preferred VT over visual and acoustic feedback. On average, the AUC gave VT feedback six times during the measurement session. All participants, with the exception of one, used their dominant arm more then the non-dominant. For the SUS, eight participants responded above 80%, one between 70 and 80%, and one participant responded below 50%.

Discussion: More patients accepted and valued VT feedback after the test period, hence VT is a feasible feedback modality. The AUC can be used as a telerehabilitation device to train and maintain upper extremity use in daily life tasks.
Original languageEnglish
Pages (from-to)98
Number of pages7
JournalFrontiers in bioengineering and biotechnology
Volume4
DOIs
Publication statusPublished - 24 Jan 2017

Fingerprint

Arm
Stroke
Feedback
Interviews
Acoustics
Equipment and Supplies
Sensory Feedback
Activities of Daily Living
Wrist
Upper Extremity
Wear of materials
Mentoring
Sensors

Keywords

  • EC Grant Agreement nr.: FP7/287351
  • IR-103588
  • EWI-27740

Cite this

@article{9638594dd4a643e8827264cd26e91c62,
title = "Usability evaluation of a vibrotactile feedback system in stroke subjects",
abstract = "Background: To increase the functional capabilities of stroke subjects during activities of daily living, patients receive rehabilitative training to recover adequate motor control. With the goal to motivate self-training by use of the arm in daily life tasks, a sensor system (Arm Usage Coach, AUC) was developed that provides VibroTactile (VT) feedback if the patient does not move the affected arm above a certain threshold level. The objective of this study is to investigate the usability of this system in stroke subjects.Method: The study was designed as a usability and user acceptance study of feedback modalities. Stroke subjects with mild to moderate arm impairments were enrolled. The subjects wore two AUC devices one on each wrist. VT feedback was given by the device on the affected arm. A semi-structured interview was performed before and after a measurement session with the AUC. In addition, the System Usability Scale (SUS) questionnaire was given.Results: Ten ischemic chronic stroke patients (39 ± 38 months after stroke) were recruited. Four out of 10 subjects have worn the VT feedback on their dominant, affected arm. In the pre-measurement interview, eight participants indicated a preference for acoustic or visual over VT feedback. In the post evaluation interview, nine of 10 participants preferred VT over visual and acoustic feedback. On average, the AUC gave VT feedback six times during the measurement session. All participants, with the exception of one, used their dominant arm more then the non-dominant. For the SUS, eight participants responded above 80{\%}, one between 70 and 80{\%}, and one participant responded below 50{\%}.Discussion: More patients accepted and valued VT feedback after the test period, hence VT is a feasible feedback modality. The AUC can be used as a telerehabilitation device to train and maintain upper extremity use in daily life tasks.",
keywords = "EC Grant Agreement nr.: FP7/287351, IR-103588, EWI-27740",
author = "Held, {Jeremia P.} and Bart Klaassen and {van Beijnum}, Bert-Jan and Luft, {Andreas R.} and Veltink, {Peter H.}",
year = "2017",
month = "1",
day = "24",
doi = "10.3389/fbioe.2016.00098",
language = "English",
volume = "4",
pages = "98",
journal = "Frontiers in bioengineering and biotechnology",
issn = "2296-4185",
publisher = "Frontiers Media S.A.",

}

Usability evaluation of a vibrotactile feedback system in stroke subjects. / Held, Jeremia P.; Klaassen, Bart ; van Beijnum, Bert-Jan; Luft, Andreas R.; Veltink, Peter H.

In: Frontiers in bioengineering and biotechnology, Vol. 4, 24.01.2017, p. 98.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Usability evaluation of a vibrotactile feedback system in stroke subjects

AU - Held, Jeremia P.

AU - Klaassen, Bart

AU - van Beijnum, Bert-Jan

AU - Luft, Andreas R.

AU - Veltink, Peter H.

PY - 2017/1/24

Y1 - 2017/1/24

N2 - Background: To increase the functional capabilities of stroke subjects during activities of daily living, patients receive rehabilitative training to recover adequate motor control. With the goal to motivate self-training by use of the arm in daily life tasks, a sensor system (Arm Usage Coach, AUC) was developed that provides VibroTactile (VT) feedback if the patient does not move the affected arm above a certain threshold level. The objective of this study is to investigate the usability of this system in stroke subjects.Method: The study was designed as a usability and user acceptance study of feedback modalities. Stroke subjects with mild to moderate arm impairments were enrolled. The subjects wore two AUC devices one on each wrist. VT feedback was given by the device on the affected arm. A semi-structured interview was performed before and after a measurement session with the AUC. In addition, the System Usability Scale (SUS) questionnaire was given.Results: Ten ischemic chronic stroke patients (39 ± 38 months after stroke) were recruited. Four out of 10 subjects have worn the VT feedback on their dominant, affected arm. In the pre-measurement interview, eight participants indicated a preference for acoustic or visual over VT feedback. In the post evaluation interview, nine of 10 participants preferred VT over visual and acoustic feedback. On average, the AUC gave VT feedback six times during the measurement session. All participants, with the exception of one, used their dominant arm more then the non-dominant. For the SUS, eight participants responded above 80%, one between 70 and 80%, and one participant responded below 50%.Discussion: More patients accepted and valued VT feedback after the test period, hence VT is a feasible feedback modality. The AUC can be used as a telerehabilitation device to train and maintain upper extremity use in daily life tasks.

AB - Background: To increase the functional capabilities of stroke subjects during activities of daily living, patients receive rehabilitative training to recover adequate motor control. With the goal to motivate self-training by use of the arm in daily life tasks, a sensor system (Arm Usage Coach, AUC) was developed that provides VibroTactile (VT) feedback if the patient does not move the affected arm above a certain threshold level. The objective of this study is to investigate the usability of this system in stroke subjects.Method: The study was designed as a usability and user acceptance study of feedback modalities. Stroke subjects with mild to moderate arm impairments were enrolled. The subjects wore two AUC devices one on each wrist. VT feedback was given by the device on the affected arm. A semi-structured interview was performed before and after a measurement session with the AUC. In addition, the System Usability Scale (SUS) questionnaire was given.Results: Ten ischemic chronic stroke patients (39 ± 38 months after stroke) were recruited. Four out of 10 subjects have worn the VT feedback on their dominant, affected arm. In the pre-measurement interview, eight participants indicated a preference for acoustic or visual over VT feedback. In the post evaluation interview, nine of 10 participants preferred VT over visual and acoustic feedback. On average, the AUC gave VT feedback six times during the measurement session. All participants, with the exception of one, used their dominant arm more then the non-dominant. For the SUS, eight participants responded above 80%, one between 70 and 80%, and one participant responded below 50%.Discussion: More patients accepted and valued VT feedback after the test period, hence VT is a feasible feedback modality. The AUC can be used as a telerehabilitation device to train and maintain upper extremity use in daily life tasks.

KW - EC Grant Agreement nr.: FP7/287351

KW - IR-103588

KW - EWI-27740

U2 - 10.3389/fbioe.2016.00098

DO - 10.3389/fbioe.2016.00098

M3 - Article

VL - 4

SP - 98

JO - Frontiers in bioengineering and biotechnology

JF - Frontiers in bioengineering and biotechnology

SN - 2296-4185

ER -