Agreement of Gait Events Detection during Treadmill Backward Walking by Kinematic Data and Inertial Motion Units

Gottlieb, Uri; Balasukumaran, Tharani; Hoffman, Jay R.; Springer, Shmuel

doi:10.3390/s20216331

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Agreement of Gait Events Detection during Treadmill Backward Walking by Kinematic Data and Inertial Motion Units

Uri Gottlieb

Tharani Balasukumaran

Jay R. Hoffman

and

Shmuel Springer

Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel 40700, Israel

Author to whom correspondence should be addressed.

Sensors 2020, 20(21), 6331; https://doi.org/10.3390/s20216331

Received: 21 October 2020 / Revised: 3 November 2020 / Accepted: 4 November 2020 / Published: 6 November 2020

(This article belongs to the Section Biomedical Sensors)

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Abstract

Backward walking (BW) is being increasingly used in neurologic and orthopedic rehabilitation as well as in sports to promote balance control as it provides a unique challenge to the sensorimotor control system. The identification of initial foot contact (IC) and terminal foot contact (TC) events is crucial for gait analysis. Data of optical motion capture (OMC) kinematics and inertial motion units (IMUs) are commonly used to detect gait events during forward walking (FW). However, the agreement between such methods during BW has not been investigated. In this study, the OMC kinematics and inertial data of 10 healthy young adults were recorded during BW and FW on a treadmill at different speeds. Gait events were measured using both kinematics and inertial data and then evaluated for agreement. Excellent reliability (Interclass Correlation > 0.9) was achieved for the identification of both IC and TC. The absolute differences between methods during BW were 18.5 ± 18.3 and 20.4 ± 15.2 ms for IC and TC, respectively, compared to 9.1 ± 9.6 and 10.0 ± 14.9 for IC and TC, respectively, during FW. The high levels of agreement between methods indicate that both may be used for some applications of BW gait analysis. View Full-Text

Keywords: backward walking; gait analysis; gait events; agreement

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MDPI and ACS Style

Gottlieb, U.; Balasukumaran, T.; Hoffman, J.R.; Springer, S. Agreement of Gait Events Detection during Treadmill Backward Walking by Kinematic Data and Inertial Motion Units. Sensors 2020, 20, 6331. https://doi.org/10.3390/s20216331

AMA Style

Gottlieb U, Balasukumaran T, Hoffman JR, Springer S. Agreement of Gait Events Detection during Treadmill Backward Walking by Kinematic Data and Inertial Motion Units. Sensors. 2020; 20(21):6331. https://doi.org/10.3390/s20216331

Chicago/Turabian Style

Gottlieb, Uri, Tharani Balasukumaran, Jay R. Hoffman, and Shmuel Springer. 2020. "Agreement of Gait Events Detection during Treadmill Backward Walking by Kinematic Data and Inertial Motion Units" Sensors 20, no. 21: 6331. https://doi.org/10.3390/s20216331

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Agreement of Gait Events Detection during Treadmill Backward Walking by Kinematic Data and Inertial Motion Units

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