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Volume 22
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10.3390/s22031196
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Article

Smart Eyeglasses: A Valid and Reliable Device to Assess Spatiotemporal Parameters during Gait

by
Justine Hellec
1,2,*,
Frédéric Chorin
1,3,
Andrea Castagnetti
4,
Olivier Guérin
5 and
Serge S. Colson
1
1
Université Côte d’Azur, LAMHESS, EUR HEALTHY, 06205 Nice, France
2
Ellcie Healthy, 06600 Antibes, France
3
Université Côte d’Azur, CHU, Cimiez, Plateforme Fragilité, 06000 Nice, France
4
Université Côte d’Azur, LEAT UMR 7248, 06410 Biot, France
5
Université Côte d’Azur, IRCAN, 06107 Nice, France
*
Author to whom correspondence should be addressed.
Sensors 2022, 22(3), 1196; https://doi.org/10.3390/s22031196
Submission received: 11 January 2022 / Revised: 31 January 2022 / Accepted: 2 February 2022 / Published: 4 February 2022
(This article belongs to the Section Wearables)
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Abstract

The study aims to determine the validity and reproducibility of step duration and step length parameters measured during walking in healthy participants using an accelerometer embedded in smart eyeglasses. Twenty young volunteers participated in two identical sessions comprising a 30 s gait assessment performed at three different treadmill speeds under two conditions (i.e., with and without a cervical collar). Spatiotemporal parameters (i.e., step duration and step length normalized by the lower limb length) were obtained with both the accelerometer embedded in smart eyeglasses and an optoelectronic system. The relative intra- and inter-session reliability of step duration and step length computed from the vertical acceleration data were excellent for all experimental conditions. An excellent absolute reliability was observed for the eyeglasses for all conditions and concurrent validity between systems was observed. An accelerometer incorporated in smart eyeglasses is accurate to measure step duration and step length during gait.
Keywords: wearable sensor; accelerometer; reproducibility; reliability; validity; spatiotemporal parameters wearable sensor; accelerometer; reproducibility; reliability; validity; spatiotemporal parameters

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MDPI and ACS Style

Hellec, J.; Chorin, F.; Castagnetti, A.; Guérin, O.; Colson, S.S. Smart Eyeglasses: A Valid and Reliable Device to Assess Spatiotemporal Parameters during Gait. Sensors 2022, 22, 1196. https://doi.org/10.3390/s22031196

AMA Style

Hellec J, Chorin F, Castagnetti A, Guérin O, Colson SS. Smart Eyeglasses: A Valid and Reliable Device to Assess Spatiotemporal Parameters during Gait. Sensors. 2022; 22(3):1196. https://doi.org/10.3390/s22031196

Chicago/Turabian Style

Hellec, Justine, Frédéric Chorin, Andrea Castagnetti, Olivier Guérin, and Serge S. Colson. 2022. "Smart Eyeglasses: A Valid and Reliable Device to Assess Spatiotemporal Parameters during Gait" Sensors 22, no. 3: 1196. https://doi.org/10.3390/s22031196

APA Style

Hellec, J., Chorin, F., Castagnetti, A., Guérin, O., & Colson, S. S. (2022). Smart Eyeglasses: A Valid and Reliable Device to Assess Spatiotemporal Parameters during Gait. Sensors, 22(3), 1196. https://doi.org/10.3390/s22031196

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