Real-Time Gait Event Detection with Adaptive Frequency Oscillators from a Single Head-Mounted IMU
Accurate real-time gait event detection is the basis for the development of new gait rehabilitation techniques, especially when utilizing robotics or virtual reality (VR). The recent emergence of affordable wearable technologies, especially inertial measurement units (IMUs), has brought forth variou...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/12/5500 |
| _version_ | 1797592715577262080 |
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| author | Matej Tomc Zlatko Matjačić |
| author_facet | Matej Tomc Zlatko Matjačić |
| author_sort | Matej Tomc |
| collection | DOAJ |
| description | Accurate real-time gait event detection is the basis for the development of new gait rehabilitation techniques, especially when utilizing robotics or virtual reality (VR). The recent emergence of affordable wearable technologies, especially inertial measurement units (IMUs), has brought forth various new methods and algorithms for gait analysis. In this paper, we highlight some advantages of using adaptive frequency oscillators (AFOs) over traditional gait event detection algorithms, implemented a real-time AFO-based algorithm that estimates the gait phase from a single head-mounted IMU, and validated our method on a group of healthy subjects. Gait event detection was accurate at two different walking speeds. The method was reliable for symmetric, but not asymmetric gait patterns. Our method could prove especially useful in VR applications since a head-mounted IMU is already an integral part of commercial VR products. |
| first_indexed | 2024-03-11T01:57:05Z |
| format | Article |
| id | doaj.art-75fa1645e75a4f4486059f4087bf4c18 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T01:57:05Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-75fa1645e75a4f4486059f4087bf4c182023-11-18T12:31:55ZengMDPI AGSensors1424-82202023-06-012312550010.3390/s23125500Real-Time Gait Event Detection with Adaptive Frequency Oscillators from a Single Head-Mounted IMUMatej Tomc0Zlatko Matjačić1University Rehabilitation Institute Republic of Slovenia Soča, Linhartova 51, 1000 Ljubljana, SloveniaUniversity Rehabilitation Institute Republic of Slovenia Soča, Linhartova 51, 1000 Ljubljana, SloveniaAccurate real-time gait event detection is the basis for the development of new gait rehabilitation techniques, especially when utilizing robotics or virtual reality (VR). The recent emergence of affordable wearable technologies, especially inertial measurement units (IMUs), has brought forth various new methods and algorithms for gait analysis. In this paper, we highlight some advantages of using adaptive frequency oscillators (AFOs) over traditional gait event detection algorithms, implemented a real-time AFO-based algorithm that estimates the gait phase from a single head-mounted IMU, and validated our method on a group of healthy subjects. Gait event detection was accurate at two different walking speeds. The method was reliable for symmetric, but not asymmetric gait patterns. Our method could prove especially useful in VR applications since a head-mounted IMU is already an integral part of commercial VR products.https://www.mdpi.com/1424-8220/23/12/5500gait event detectionadaptive oscillatorsvirtual realityinertial measurement units |
| spellingShingle | Matej Tomc Zlatko Matjačić Real-Time Gait Event Detection with Adaptive Frequency Oscillators from a Single Head-Mounted IMU Sensors gait event detection adaptive oscillators virtual reality inertial measurement units |
| title | Real-Time Gait Event Detection with Adaptive Frequency Oscillators from a Single Head-Mounted IMU |
| title_full | Real-Time Gait Event Detection with Adaptive Frequency Oscillators from a Single Head-Mounted IMU |
| title_fullStr | Real-Time Gait Event Detection with Adaptive Frequency Oscillators from a Single Head-Mounted IMU |
| title_full_unstemmed | Real-Time Gait Event Detection with Adaptive Frequency Oscillators from a Single Head-Mounted IMU |
| title_short | Real-Time Gait Event Detection with Adaptive Frequency Oscillators from a Single Head-Mounted IMU |
| title_sort | real time gait event detection with adaptive frequency oscillators from a single head mounted imu |
| topic | gait event detection adaptive oscillators virtual reality inertial measurement units |
| url | https://www.mdpi.com/1424-8220/23/12/5500 |
| work_keys_str_mv | AT matejtomc realtimegaiteventdetectionwithadaptivefrequencyoscillatorsfromasingleheadmountedimu AT zlatkomatjacic realtimegaiteventdetectionwithadaptivefrequencyoscillatorsfromasingleheadmountedimu |