SlamTracker Accuracy under Static and Controlled Movement Conditions

Cain C. T. Clark, Claire M. Barnes, Mark Holton, Huw D. Summers, Gareth Stratton

Research output: Contribution to journalJournal Article

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Abstract

Accelerometry is the de facto standard in objective physical activity monitoring. However traditional accelerometer units undergo proprietary pre-processing, resulting in the ‘black-box’ phenomenon, where researchers are unaware of the processes and filters used on their data. Raw accelerometers where all frequencies related to human movement are included in the signal, would facilitate novel analyses, such as frequency domain analysis and pattern recognition. The aim of this study was to quantify the mean, standard deviation and variance of the SlamTracker raw accelerometer at a range of speeds. Four tri-axial accelerometers underwent a one minute static condition test nine movement condition tests. Accelerometers were assessed for mean, standard deviation, sample variance and coefficient of variation throughout in all axes for all experimental conditions. The sample variance was <0.001g across all speeds and axes during the movement condition tests. In conclusion, the SlamTracker is shown to be an accurate and reliable device for measuring the raw accelerations of movement.

Original languageEnglish
Pages (from-to)374-383
Number of pages10
JournalSport Science Review
Volume25
Issue number5-6
DOIs
Publication statusPublished - 2016

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Accelerometers
Frequency domain analysis
Pattern recognition
Monitoring
Processing

Keywords

  • accelerometer
  • accuracy
  • human movement
  • mechanical
  • raw signal

Cite this

Clark, C. C. T., Barnes, C. M., Holton, M., Summers, H. D., & Stratton, G. (2016). SlamTracker Accuracy under Static and Controlled Movement Conditions. Sport Science Review, 25(5-6), 374-383. https://doi.org/10.1515/ssr-2016-0020
Clark, Cain C. T. ; Barnes, Claire M. ; Holton, Mark ; Summers, Huw D. ; Stratton, Gareth. / SlamTracker Accuracy under Static and Controlled Movement Conditions. In: Sport Science Review. 2016 ; Vol. 25, No. 5-6. pp. 374-383.
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Clark, CCT, Barnes, CM, Holton, M, Summers, HD & Stratton, G 2016, 'SlamTracker Accuracy under Static and Controlled Movement Conditions', Sport Science Review, vol. 25, no. 5-6, pp. 374-383. https://doi.org/10.1515/ssr-2016-0020

SlamTracker Accuracy under Static and Controlled Movement Conditions. / Clark, Cain C. T.; Barnes, Claire M.; Holton, Mark; Summers, Huw D.; Stratton, Gareth.

In: Sport Science Review, Vol. 25, No. 5-6, 2016, p. 374-383.

Research output: Contribution to journalJournal Article

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T1 - SlamTracker Accuracy under Static and Controlled Movement Conditions

AU - Clark, Cain C. T.

AU - Barnes, Claire M.

AU - Holton, Mark

AU - Summers, Huw D.

AU - Stratton, Gareth

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AB - Accelerometry is the de facto standard in objective physical activity monitoring. However traditional accelerometer units undergo proprietary pre-processing, resulting in the ‘black-box’ phenomenon, where researchers are unaware of the processes and filters used on their data. Raw accelerometers where all frequencies related to human movement are included in the signal, would facilitate novel analyses, such as frequency domain analysis and pattern recognition. The aim of this study was to quantify the mean, standard deviation and variance of the SlamTracker raw accelerometer at a range of speeds. Four tri-axial accelerometers underwent a one minute static condition test nine movement condition tests. Accelerometers were assessed for mean, standard deviation, sample variance and coefficient of variation throughout in all axes for all experimental conditions. The sample variance was <0.001g across all speeds and axes during the movement condition tests. In conclusion, the SlamTracker is shown to be an accurate and reliable device for measuring the raw accelerations of movement.

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