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Validity of a small low-cost triaxial accelerometer with integrated logger for uncomplicated measurements of postures and movements of head, upper back and upper arms

Dahlqvist, Camilla LU ; Hansson, Gert-Åke LU and Forsman, Mikael (2016) In Applied Ergonomics 55. p.16-108
Abstract

Repetitive work and work in constrained postures are risk factors for developing musculoskeletal disorders. Low-cost, user-friendly technical methods to quantify these risks are needed. The aims were to validate inclination angles and velocities of one model of the new generation of accelerometers with integrated data loggers against a previously validated one, and to compare meaurements when using a plain reference posture with that of a standardized one. All mean (n = 12 subjects) angular RMS-differences in 4 work tasks and 4 body parts were <2.5° and all mean median angular velocity differences <5.0 °/s. The mean correlation between the inclination signal-pairs was 0.996. This model of the new generation of triaxial... (More)

Repetitive work and work in constrained postures are risk factors for developing musculoskeletal disorders. Low-cost, user-friendly technical methods to quantify these risks are needed. The aims were to validate inclination angles and velocities of one model of the new generation of accelerometers with integrated data loggers against a previously validated one, and to compare meaurements when using a plain reference posture with that of a standardized one. All mean (n = 12 subjects) angular RMS-differences in 4 work tasks and 4 body parts were <2.5° and all mean median angular velocity differences <5.0 °/s. The mean correlation between the inclination signal-pairs was 0.996. This model of the new generation of triaxial accelerometers proved to be comparable to the validated accelerometer using a data logger. This makes it well-suited, for both researchers and practitioners, to measure postures and movements during work. Further work is needed for validation of the plain reference posture for upper arms.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Ergonomics
volume
55
pages
9 pages
publisher
Elsevier
external identifiers
  • Scopus:84960906184
  • WOS:000374074600011
ISSN
1872-9126
DOI
10.1016/j.apergo.2016.01.013
language
English
LU publication?
yes
id
498dfe4b-4835-4cd1-af66-81ca6d2d3117
date added to LUP
2016-04-13 09:04:24
date last changed
2016-11-14 09:42:45
@misc{498dfe4b-4835-4cd1-af66-81ca6d2d3117,
  abstract     = {<p>Repetitive work and work in constrained postures are risk factors for developing musculoskeletal disorders. Low-cost, user-friendly technical methods to quantify these risks are needed. The aims were to validate inclination angles and velocities of one model of the new generation of accelerometers with integrated data loggers against a previously validated one, and to compare meaurements when using a plain reference posture with that of a standardized one. All mean (n = 12 subjects) angular RMS-differences in 4 work tasks and 4 body parts were &lt;2.5° and all mean median angular velocity differences &lt;5.0 °/s. The mean correlation between the inclination signal-pairs was 0.996. This model of the new generation of triaxial accelerometers proved to be comparable to the validated accelerometer using a data logger. This makes it well-suited, for both researchers and practitioners, to measure postures and movements during work. Further work is needed for validation of the plain reference posture for upper arms.</p>},
  author       = {Dahlqvist, Camilla and Hansson, Gert-Åke and Forsman, Mikael},
  issn         = {1872-9126},
  language     = {eng},
  pages        = {16--108},
  publisher    = {ARRAY(0xb71c790)},
  series       = {Applied Ergonomics},
  title        = {Validity of a small low-cost triaxial accelerometer with integrated logger for uncomplicated measurements of postures and movements of head, upper back and upper arms},
  url          = {http://dx.doi.org/10.1016/j.apergo.2016.01.013},
  volume       = {55},
  year         = {2016},
}