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Volume 24
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10.3390/s24237825
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Article

Concurrent Validity and Relative Reliability of the RunScribe™ System for the Assessment of Spatiotemporal Gait Parameters During Walking

by
Andrés Ráfales-Perucha
,
Elisa Bravo-Viñuales
,
Alejandro Molina-Molina
,
Antonio Cartón-Llorente
*,
Silvia Cardiel-Sánchez
and
Luis E. Roche-Seruendo
Faculty of Health Sciences, Universidad San Jorge, Villanueva de Gállego, 50830 Zaragoz, Spain
*
Author to whom correspondence should be addressed.
Sensors 2024, 24(23), 7825; https://doi.org/10.3390/s24237825
Submission received: 23 October 2024 / Revised: 4 December 2024 / Accepted: 5 December 2024 / Published: 7 December 2024
(This article belongs to the Special Issue IMU and Innovative Sensors for Healthcare)
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Abstract

The evaluation of gait biomechanics using portable inertial measurement units (IMUs) offers real-time feedback and has become a crucial tool for detecting gait disorders. However, many of these devices have not yet been fully validated. The aim of this study was to assess the concurrent validity and relative reliability of the RunScribe™ system for measuring spatiotemporal gait parameters during walking. A total of 460 participants (age: 36 ± 13 years; height: 173 ± 9 cm; body mass: 70 ± 13 kg) were asked to walk on a treadmill at 5 km·h−1. Spatiotemporal parameters of step frequency (SF), step length (SL), step time (ST), contact time (CT), swing time (SwT), stride time (StT), stride length (StL) and normalized stride length (StL%) were measured through RunScribe™ and OptoGait™ systems. Bland–Altman analysis indicated small systematic biases and random errors for all variables. Pearson correlation analysis showed strong correlations (0.70–0.94) between systems. The intraclass correlation coefficient supports these results, except for contact time (ICC = 0.64) and swing time (ICC = 0.34). The paired t-test showed small differences in SL, StL and StL% (≤0.25) and large in CT and SwT (1.2 and 2.2, respectively), with no differences for the rest of the variables. This study confirms the accuracy of the RunScribe™ system for assessing spatiotemporal parameters during walking, potentially reducing the barriers to continuous gait monitoring and early detection of gait issues.
Keywords: biomechanics; gait analysis; inertial measurement unit; technology; wearable biomechanics; gait analysis; inertial measurement unit; technology; wearable

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MDPI and ACS Style

Ráfales-Perucha, A.; Bravo-Viñuales, E.; Molina-Molina, A.; Cartón-Llorente, A.; Cardiel-Sánchez, S.; Roche-Seruendo, L.E. Concurrent Validity and Relative Reliability of the RunScribe™ System for the Assessment of Spatiotemporal Gait Parameters During Walking. Sensors 2024, 24, 7825. https://doi.org/10.3390/s24237825

AMA Style

Ráfales-Perucha A, Bravo-Viñuales E, Molina-Molina A, Cartón-Llorente A, Cardiel-Sánchez S, Roche-Seruendo LE. Concurrent Validity and Relative Reliability of the RunScribe™ System for the Assessment of Spatiotemporal Gait Parameters During Walking. Sensors. 2024; 24(23):7825. https://doi.org/10.3390/s24237825

Chicago/Turabian Style

Ráfales-Perucha, Andrés, Elisa Bravo-Viñuales, Alejandro Molina-Molina, Antonio Cartón-Llorente, Silvia Cardiel-Sánchez, and Luis E. Roche-Seruendo. 2024. "Concurrent Validity and Relative Reliability of the RunScribe™ System for the Assessment of Spatiotemporal Gait Parameters During Walking" Sensors 24, no. 23: 7825. https://doi.org/10.3390/s24237825

APA Style

Ráfales-Perucha, A., Bravo-Viñuales, E., Molina-Molina, A., Cartón-Llorente, A., Cardiel-Sánchez, S., & Roche-Seruendo, L. E. (2024). Concurrent Validity and Relative Reliability of the RunScribe™ System for the Assessment of Spatiotemporal Gait Parameters During Walking. Sensors, 24(23), 7825. https://doi.org/10.3390/s24237825

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