Journal article
Validity of a low-cost laser with freely available software for improving measurement of walking and running speed
Journal of Science and Medicine in Sport, Vol.22(2), pp.212-216
2019
Abstract
OBJECTIVES: Accurately measuring speed and acceleration during walking, running and sprinting has important implications for rehabilitation, planning training and talent identification in sporting and clinical populations. Light detection and ranging laser technology provides a continuous stream of distance data. It has the potential to allow rapid and precise measurement and may be advantageous compared with discrete methods of assessment, such as stopwatches and timing gates, which may be inaccurate over short distances. Therefore, the aim of this study was to assess the validity of a novel, low-cost and easy to implement laser-based system during walking and running trials. DESIGN: Cross-sectional study. METHODS: Thirty-two healthy adults performed walking and running trials from flying and static starts while monitored concurrently with reference standard three-dimensional motion analysis and laser systems. Velocity was calculated over short (0.5m) and longer (3m) intervals using both systems. Validity was assessed using absolute agreement intraclass correlation coefficients (ICC2,1), mean absolute errors, Pearson's correlations and regressions and Bland-Altman plots. RESULTS: All intraclass correlation coefficients and correlations were excellent (ICC>0.88, R>0.89). For the longer interval, all mean absolute errors were <0.03m/s (0.24-1.31%). Slightly higher mean absolute error values were reported for the shorter interval (3.16-5.10%), with the highest error of 0.184m/s evident for the flying start running trial. CONCLUSIONS: These results indicate that a low-cost and accessible laser system can be used to accurately assess walking and running speed. To aid implementation and further research, freely available hardware design descriptions and downloadable software can be accessed at www.rehabtools.org/LIDAR.
Details
- Title
- Validity of a low-cost laser with freely available software for improving measurement of walking and running speed
- Authors
- Ross Clark (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringYong-Hao Pua (Author) - Singapore General HospitalKelly Bower (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringDonna Louise Bechard (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringEmma Hough (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringPaula Charlton (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringBenjamin Mentiplay (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
- Publication details
- Journal of Science and Medicine in Sport, Vol.22(2), pp.212-216
- Publisher
- Elsevier Australia
- Date published
- 2019
- DOI
- 10.1016/j.jsams.2018.07.005
- ISSN
- 1878-1861
- Organisation Unit
- University of the Sunshine Coast, Queensland; Marketing and External Engagement - Legacy; School of Health and Sport Sciences - Legacy; School of Health and Behavioural Sciences - Legacy; School of Health - Public Health
- Language
- English
- Record Identifier
- 99450892302621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Sport Sciences