Are Accelerometers and GPS Devices Valid, Reliable and Feasible Tools for Measurement of Community Ambulation after Stroke?

Niru MAHENDRAN, Suzanne Kuys, Emma Downie, Phoebe Ng, Sandra Brauer

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Purpose: To determine validity, reliability and feasibility of accelerometers (ActivPAL™, Sensewear Pro2 Armband) and portable global positioning systems (GPS) (Garmin Forerunner 405CX) for community ambulation measurement after stroke. Methods: Fifteen community-dwelling stroke survivors attended two sessions; completing a 6-minute walk, treadmill walking, and 200-m outdoor circuit. Feasibility was determined by wearing devices over four days. Measures collected included step count, time spent walking, distance, energy expenditure and location. Intra-class correlation coefficients (ICC), Bland–Altman plots and absolute percentage of error (APE) were used to determine validity and reliability. Results: ActivPAL™ had excellent validity and reliability for most measures (ICC: 0.821–0.999, APE: 0%–11.1%), except for good-excellent findings at speeds < 0.42 m/s (ICC: 0.659–0.894, APE: 1.6%–11.1%). Sensewear had missing values for 23% of recordings and high error for all measures. GPS demonstrated excellent validity and reliability for time spent walking and step count (ICC: 0.805–0.999, APE: 0.9%–10%), and 100% accuracy for location. However, it was not valid or reliable for distance (ICC = −0.139, APE = 23.8%). All devices appeared feasible for community ambulation measurement with assistance for setup and data analysis. Conclusions: ActivPAL™ and Garmin GPS appear valid, reliable and feasible tools for community ambulation measurement after stroke, except for distance. Sensewear demonstrated poor validity and reliability when worn on the paretic arm
Original languageEnglish
Pages (from-to)151-161
Number of pages11
JournalBrain Impairment
Volume17
Issue number2
DOIs
Publication statusPublished - 2016
Externally publishedYes

Fingerprint

Geographic Information Systems
Walking
Reproducibility of Results
Stroke
Equipment and Supplies
Independent Living
Energy Metabolism
Survivors

Cite this

MAHENDRAN, Niru ; Kuys, Suzanne ; Downie, Emma ; Ng, Phoebe ; Brauer, Sandra. / Are Accelerometers and GPS Devices Valid, Reliable and Feasible Tools for Measurement of Community Ambulation after Stroke?. In: Brain Impairment. 2016 ; Vol. 17, No. 2. pp. 151-161.
@article{e33e7552135140d5926160e96000a559,
title = "Are Accelerometers and GPS Devices Valid, Reliable and Feasible Tools for Measurement of Community Ambulation after Stroke?",
abstract = "Purpose: To determine validity, reliability and feasibility of accelerometers (ActivPAL™, Sensewear Pro2 Armband) and portable global positioning systems (GPS) (Garmin Forerunner 405CX) for community ambulation measurement after stroke. Methods: Fifteen community-dwelling stroke survivors attended two sessions; completing a 6-minute walk, treadmill walking, and 200-m outdoor circuit. Feasibility was determined by wearing devices over four days. Measures collected included step count, time spent walking, distance, energy expenditure and location. Intra-class correlation coefficients (ICC), Bland–Altman plots and absolute percentage of error (APE) were used to determine validity and reliability. Results: ActivPAL™ had excellent validity and reliability for most measures (ICC: 0.821–0.999, APE: 0{\%}–11.1{\%}), except for good-excellent findings at speeds < 0.42 m/s (ICC: 0.659–0.894, APE: 1.6{\%}–11.1{\%}). Sensewear had missing values for 23{\%} of recordings and high error for all measures. GPS demonstrated excellent validity and reliability for time spent walking and step count (ICC: 0.805–0.999, APE: 0.9{\%}–10{\%}), and 100{\%} accuracy for location. However, it was not valid or reliable for distance (ICC = −0.139, APE = 23.8{\%}). All devices appeared feasible for community ambulation measurement with assistance for setup and data analysis. Conclusions: ActivPAL™ and Garmin GPS appear valid, reliable and feasible tools for community ambulation measurement after stroke, except for distance. Sensewear demonstrated poor validity and reliability when worn on the paretic arm",
keywords = "GPS, Keywords: Stroke, accelerometer, community ambulation, reliability and validity, walking, Stroke",
author = "Niru MAHENDRAN and Suzanne Kuys and Emma Downie and Phoebe Ng and Sandra Brauer",
year = "2016",
doi = "10.1017/BrImp.2016.13",
language = "English",
volume = "17",
pages = "151--161",
journal = "Brain Impairment",
issn = "1443-9646",
publisher = "Cambridge University Press",
number = "2",

}

Are Accelerometers and GPS Devices Valid, Reliable and Feasible Tools for Measurement of Community Ambulation after Stroke? / MAHENDRAN, Niru; Kuys, Suzanne; Downie, Emma; Ng, Phoebe; Brauer, Sandra.

In: Brain Impairment, Vol. 17, No. 2, 2016, p. 151-161.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Are Accelerometers and GPS Devices Valid, Reliable and Feasible Tools for Measurement of Community Ambulation after Stroke?

AU - MAHENDRAN, Niru

AU - Kuys, Suzanne

AU - Downie, Emma

AU - Ng, Phoebe

AU - Brauer, Sandra

PY - 2016

Y1 - 2016

N2 - Purpose: To determine validity, reliability and feasibility of accelerometers (ActivPAL™, Sensewear Pro2 Armband) and portable global positioning systems (GPS) (Garmin Forerunner 405CX) for community ambulation measurement after stroke. Methods: Fifteen community-dwelling stroke survivors attended two sessions; completing a 6-minute walk, treadmill walking, and 200-m outdoor circuit. Feasibility was determined by wearing devices over four days. Measures collected included step count, time spent walking, distance, energy expenditure and location. Intra-class correlation coefficients (ICC), Bland–Altman plots and absolute percentage of error (APE) were used to determine validity and reliability. Results: ActivPAL™ had excellent validity and reliability for most measures (ICC: 0.821–0.999, APE: 0%–11.1%), except for good-excellent findings at speeds < 0.42 m/s (ICC: 0.659–0.894, APE: 1.6%–11.1%). Sensewear had missing values for 23% of recordings and high error for all measures. GPS demonstrated excellent validity and reliability for time spent walking and step count (ICC: 0.805–0.999, APE: 0.9%–10%), and 100% accuracy for location. However, it was not valid or reliable for distance (ICC = −0.139, APE = 23.8%). All devices appeared feasible for community ambulation measurement with assistance for setup and data analysis. Conclusions: ActivPAL™ and Garmin GPS appear valid, reliable and feasible tools for community ambulation measurement after stroke, except for distance. Sensewear demonstrated poor validity and reliability when worn on the paretic arm

AB - Purpose: To determine validity, reliability and feasibility of accelerometers (ActivPAL™, Sensewear Pro2 Armband) and portable global positioning systems (GPS) (Garmin Forerunner 405CX) for community ambulation measurement after stroke. Methods: Fifteen community-dwelling stroke survivors attended two sessions; completing a 6-minute walk, treadmill walking, and 200-m outdoor circuit. Feasibility was determined by wearing devices over four days. Measures collected included step count, time spent walking, distance, energy expenditure and location. Intra-class correlation coefficients (ICC), Bland–Altman plots and absolute percentage of error (APE) were used to determine validity and reliability. Results: ActivPAL™ had excellent validity and reliability for most measures (ICC: 0.821–0.999, APE: 0%–11.1%), except for good-excellent findings at speeds < 0.42 m/s (ICC: 0.659–0.894, APE: 1.6%–11.1%). Sensewear had missing values for 23% of recordings and high error for all measures. GPS demonstrated excellent validity and reliability for time spent walking and step count (ICC: 0.805–0.999, APE: 0.9%–10%), and 100% accuracy for location. However, it was not valid or reliable for distance (ICC = −0.139, APE = 23.8%). All devices appeared feasible for community ambulation measurement with assistance for setup and data analysis. Conclusions: ActivPAL™ and Garmin GPS appear valid, reliable and feasible tools for community ambulation measurement after stroke, except for distance. Sensewear demonstrated poor validity and reliability when worn on the paretic arm

KW - GPS

KW - Keywords: Stroke

KW - accelerometer

KW - community ambulation

KW - reliability and validity

KW - walking

KW - Stroke

UR - http://www.scopus.com/inward/record.url?scp=84973390045&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/accelerometers-gps-devices-valid-reliable-feasible-tools-measurement-community-ambulation-after-stro

U2 - 10.1017/BrImp.2016.13

DO - 10.1017/BrImp.2016.13

M3 - Article

VL - 17

SP - 151

EP - 161

JO - Brain Impairment

JF - Brain Impairment

SN - 1443-9646

IS - 2

ER -