A1 Journal article (refereed)
Gait Variability Using Waist- and Ankle-Worn Inertial Measurement Units in Healthy Older Adults (2020)
Rantalainen, T., Karavirta, L., Pirkola, H., Rantanen, T., & Linnamo, V. (2020). Gait Variability Using Waist- and Ankle-Worn Inertial Measurement Units in Healthy Older Adults. Sensors, 20(10), Article 2858. https://doi.org/10.3390/s20102858
JYU authors or editors
Publication details
All authors or editors: Rantalainen, Timo; Karavirta, Laura; Pirkola, Henrikki; Rantanen, Taina; Linnamo, Vesa
Journal or series: Sensors
eISSN: 1424-8220
Publication year: 2020
Volume: 20
Issue number: 10
Article number: 2858
Publisher: MDPI
Publication country: Switzerland
Publication language: English
DOI: https://doi.org/10.3390/s20102858
Publication open access: Openly available
Publication channel open access: Open Access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/69121
Abstract
Gait variability observed in step duration is predictive of impending adverse health outcomes among apparently healthy older adults and could potentially be evaluated using wearable sensors (inertial measurement units, IMU). The purpose of the present study was to establish the reliability and concurrent validity of gait variability and complexity evaluated with a waist and an ankle-worn IMU. Seventeen women (age 74.8 (SD 44) years) and 10 men (73.7 (4.1) years) attended two laboratory measurement sessions a week apart. Their stride duration variability was concurrently evaluated based on a continuous 3 min walk using a force plate and a waist- and an ankle-worn IMU. Their gait complexity (multiscale sample entropy) was evaluated from the waist-worn IMU. The force plate indicated excellent stride duration variability reliability (intra-class correlation coefficient, ICC = 0.90), whereas fair to good reliability (ICC = 0.47 to 0.66) was observed from the IMUs. The IMUs exhibited poor to excellent concurrent validity in stride duration variability compared to the force plate (ICC = 0.22 to 0.93). A good to excellent reliability was observed for gait complexity in most coarseness scales (ICC = 0.60 to 0.82). A reasonable congruence with the force plate-measured stride duration variability was observed on many coarseness scales (correlation coefficient = 0.38 to 0.83). In conclusion, waist-worn IMU entropy estimates may provide a feasible indicator of gait variability among community-dwelling ambulatory older adults.
Keywords: biomechanics; motion analysis; walking (motion); older people
Free keywords: wearable; gait; accelerometer; dynamics; non-linear
Contributing organizations
Related projects
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- Research Council of Finland
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Ministry reporting: Yes
Reporting Year: 2020
JUFO rating: 1