Report

Motion pattern and posture: Correctly assessed by calibrated accelerometers

Author(s) / Creator(s)

Foerster, Friedrich
Fahrenberg, Jochen

Abstract / Description

Basic motion patterns and posture can be distinguished by multi-channel accelerometry, as recently shown. A refinement of this methodology appeared to be desirable to further increase its validity, especially to distinguish walking and climbing stairs, and body rotation during sleep. Recordings were made of 31 subjects, according to a standard protocol comprising thirteen motions and postures. This recording was repeated three times with appropriate permutation. Five uni-axial sensors and three sites of placement (sternum with three axes, right and left thigh) were selected. A hierarchical classification strategy used a standard protocol (that is, individual reference patterns) to distinguish subtypes of moving behaviors and posture. The analysis method of the accelerometer signals yielded a reliable detection of 13 different postural and activity conditions (only 3.2 % misclassifications). A minimum set of sensors can be found for a given application, for example, a two-sensor configuration would clearly suffice to differentiate between four basic classes (sitting, standing, lying, moving) in ambulatory monitoring.

Keyword(s)

Bewegung Haltung Motorik Empirie Ambulantes Monitoring Beschleunigungsmeser Körperhaltung Motorische Prozesse Empirische Methoden ambulatory monitoring accelerometer movement physical activity posture Motor Processes Empirical Methods

Persistent Identifier

Date of first publication

2000

Citation

  • Author(s) / Creator(s)
    Foerster, Friedrich
  • Author(s) / Creator(s)
    Fahrenberg, Jochen
  • PsychArchives acquisition timestamp
    2022-11-17T11:06:29Z
  • Made available on
    2009-12-21
  • Made available on
    2015-12-01T10:30:47Z
  • Made available on
    2022-11-17T11:06:29Z
  • Date of first publication
    2000
  • Abstract / Description
    Basic motion patterns and posture can be distinguished by multi-channel accelerometry, as recently shown. A refinement of this methodology appeared to be desirable to further increase its validity, especially to distinguish walking and climbing stairs, and body rotation during sleep. Recordings were made of 31 subjects, according to a standard protocol comprising thirteen motions and postures. This recording was repeated three times with appropriate permutation. Five uni-axial sensors and three sites of placement (sternum with three axes, right and left thigh) were selected. A hierarchical classification strategy used a standard protocol (that is, individual reference patterns) to distinguish subtypes of moving behaviors and posture. The analysis method of the accelerometer signals yielded a reliable detection of 13 different postural and activity conditions (only 3.2 % misclassifications). A minimum set of sensors can be found for a given application, for example, a two-sensor configuration would clearly suffice to differentiate between four basic classes (sitting, standing, lying, moving) in ambulatory monitoring.
    en
  • Persistent Identifier
    https://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:291-psydok-25598
  • Persistent Identifier
    https://hdl.handle.net/20.500.11780/627
  • Persistent Identifier
    https://doi.org/10.23668/psycharchives.9108
  • Language of content
    eng
  • Keyword(s)
    Bewegung
    de
  • Keyword(s)
    Haltung
    de
  • Keyword(s)
    Motorik
    de
  • Keyword(s)
    Empirie
    de
  • Keyword(s)
    Ambulantes Monitoring
    de
  • Keyword(s)
    Beschleunigungsmeser
    de
  • Keyword(s)
    Körperhaltung
    de
  • Keyword(s)
    Motorische Prozesse
    de
  • Keyword(s)
    Empirische Methoden
    de
  • Keyword(s)
    ambulatory monitoring
    en
  • Keyword(s)
    accelerometer
    en
  • Keyword(s)
    movement
    en
  • Keyword(s)
    physical activity
    en
  • Keyword(s)
    posture
    en
  • Keyword(s)
    Motor Processes
    en
  • Keyword(s)
    Empirical Methods
    en
  • Dewey Decimal Classification number(s)
    150
  • Title
    Motion pattern and posture: Correctly assessed by calibrated accelerometers
    en
  • DRO type
    report
  • Visible tag(s)
    PsyDok