Portable Gait Lab: Instantaneous centre of mass velocity using three inertial measurement units

Mohamed Irfan Mohamed Refai; Bert-Jan van Beijnum; Jaap H. Buurke; Peter H. Veltink

doi:10.1109/SENSORS47125.2020.9278762

Portable Gait Lab: Instantaneous centre of mass velocity using three inertial measurement units

Mohamed Irfan Mohamed Refai, Bert-Jan van Beijnum, Jaap H. Buurke, Peter H. Veltink

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

5 Citations (Scopus)

213 Downloads (Pure)

Abstract

Estimating instantaneous 3D Centre of Mass velocity (VCOM) using wearables can improve ambulatory gait monitoring. Inertial Measurement Units (IMU) are commonly used to estimate VCOM, although, studies have either measured only the magnitude, or use machine learning methods. Here, we propose a three IMU setup, where the VCOM is obtained by a complementary filter method. This method fuses high frequency information achieved using strapdown integration of accelerations measured at the pelvis with low frequency information of VCOM obtained from foot velocities. This method is applied in variable gait which includes turns. The root mean square of the error between the IMU estimated VCOM against a reference VICON measurement was found to be 0.1 ± 0.02 m/s across all walking tasks. This method provides a drift free ambulatory estimation of CoM velocity using minimal IMUs.

Original language	English
Title of host publication	2020 IEEE Sensors
Place of Publication	Piscataway, NJ
Publisher	IEEE
Number of pages	4
ISBN (Electronic)	978-1-7281-6801-2
ISBN (Print)	978-1-7281-6802-9
DOIs	https://doi.org/10.1109/SENSORS47125.2020.9278762
Publication status	Published - 9 Dec 2020
Event	IEEE Sensors 2020 - Virtual Event, Virtual, Rotterdam, Netherlands Duration: 25 Oct 2020 → 28 Oct 2020 https://2020.ieee-sensorsconference.org/

Publication series

Name	Proceedings of IEEE Sensors
Volume	2020-October
ISSN (Print)	1930-0395
ISSN (Electronic)	2168-9229

Conference

Conference	IEEE Sensors 2020
Country/Territory	Netherlands
City	Virtual, Rotterdam
Period	25/10/20 → 28/10/20
Internet address	https://2020.ieee-sensorsconference.org/

Keywords

2021 OA procedure

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10.1109/SENSORS47125.2020.9278762

Refai2020portableFinal published version, 1 MBLicence: Taverne

Cite this

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title = "Portable Gait Lab: Instantaneous centre of mass velocity using three inertial measurement units",

abstract = "Estimating instantaneous 3D Centre of Mass velocity (VCOM) using wearables can improve ambulatory gait monitoring. Inertial Measurement Units (IMU) are commonly used to estimate VCOM, although, studies have either measured only the magnitude, or use machine learning methods. Here, we propose a three IMU setup, where the VCOM is obtained by a complementary filter method. This method fuses high frequency information achieved using strapdown integration of accelerations measured at the pelvis with low frequency information of VCOM obtained from foot velocities. This method is applied in variable gait which includes turns. The root mean square of the error between the IMU estimated VCOM against a reference VICON measurement was found to be 0.1 ± 0.02 m/s across all walking tasks. This method provides a drift free ambulatory estimation of CoM velocity using minimal IMUs.",

keywords = "2021 OA procedure",

author = "{Mohamed Refai}, {Mohamed Irfan} and {van Beijnum}, Bert-Jan and Buurke, {Jaap H.} and Veltink, {Peter H.}",

note = "Funding Information: ACKNOWLEDGMENT This work is part of the Perspectief programme NeuroCIMT with project number 14905 which is (partly) financed by the Netherlands Organisation for Scientific Research (NWO). Publisher Copyright: {\textcopyright} 2020 IEEE.; IEEE Sensors 2020 ; Conference date: 25-10-2020 Through 28-10-2020",

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doi = "10.1109/SENSORS47125.2020.9278762",

language = "English",

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Mohamed Refai, MI , van Beijnum, B-J , Buurke, JH & Veltink, PH 2020, Portable Gait Lab: Instantaneous centre of mass velocity using three inertial measurement units. in 2020 IEEE Sensors., 9278762, Proceedings of IEEE Sensors, vol. 2020-October, IEEE, Piscataway, NJ, IEEE Sensors 2020, Virtual, Rotterdam, Netherlands, 25/10/20. https://doi.org/10.1109/SENSORS47125.2020.9278762

Portable Gait Lab: Instantaneous centre of mass velocity using three inertial measurement units. / Mohamed Refai, Mohamed Irfan ; van Beijnum, Bert-Jan ; Buurke, Jaap H. et al.
2020 IEEE Sensors. Piscataway, NJ: IEEE, 2020. 9278762 (Proceedings of IEEE Sensors; Vol. 2020-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Veltink, Peter H.

N1 - Funding Information: ACKNOWLEDGMENT This work is part of the Perspectief programme NeuroCIMT with project number 14905 which is (partly) financed by the Netherlands Organisation for Scientific Research (NWO). Publisher Copyright: © 2020 IEEE.

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N2 - Estimating instantaneous 3D Centre of Mass velocity (VCOM) using wearables can improve ambulatory gait monitoring. Inertial Measurement Units (IMU) are commonly used to estimate VCOM, although, studies have either measured only the magnitude, or use machine learning methods. Here, we propose a three IMU setup, where the VCOM is obtained by a complementary filter method. This method fuses high frequency information achieved using strapdown integration of accelerations measured at the pelvis with low frequency information of VCOM obtained from foot velocities. This method is applied in variable gait which includes turns. The root mean square of the error between the IMU estimated VCOM against a reference VICON measurement was found to be 0.1 ± 0.02 m/s across all walking tasks. This method provides a drift free ambulatory estimation of CoM velocity using minimal IMUs.

AB - Estimating instantaneous 3D Centre of Mass velocity (VCOM) using wearables can improve ambulatory gait monitoring. Inertial Measurement Units (IMU) are commonly used to estimate VCOM, although, studies have either measured only the magnitude, or use machine learning methods. Here, we propose a three IMU setup, where the VCOM is obtained by a complementary filter method. This method fuses high frequency information achieved using strapdown integration of accelerations measured at the pelvis with low frequency information of VCOM obtained from foot velocities. This method is applied in variable gait which includes turns. The root mean square of the error between the IMU estimated VCOM against a reference VICON measurement was found to be 0.1 ± 0.02 m/s across all walking tasks. This method provides a drift free ambulatory estimation of CoM velocity using minimal IMUs.

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Portable Gait Lab: Instantaneous centre of mass velocity using three inertial measurement units

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