Agreement between Azure Kinect and Marker-Based Motion Analysis during Functional Movements: A Feasibility Study
(1) Background: The present study investigated the agreement between the Azure Kinect and marker-based motion analysis during functional movements. (2) Methods: Twelve healthy adults participated in this study and performed a total of six different tasks including front view squat, side view squat,...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/24/9819 |
| _version_ | 1797455311787786240 |
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| author | Sungbae Jo Sunmi Song Junesun Kim Changho Song |
| author_facet | Sungbae Jo Sunmi Song Junesun Kim Changho Song |
| author_sort | Sungbae Jo |
| collection | DOAJ |
| description | (1) Background: The present study investigated the agreement between the Azure Kinect and marker-based motion analysis during functional movements. (2) Methods: Twelve healthy adults participated in this study and performed a total of six different tasks including front view squat, side view squat, forward reach, lateral reach, front view lunge, and side view lunge. Movement data were collected using an Azure Kinect and 12 infrared cameras while the participants performed the movements. The comparability between marker-based motion analysis and Azure Kinect was visualized using Bland–Altman plots and scatter plots. (3) Results: During the front view of squat motions, hip and knee joint angles showed moderate and high level of concurrent validity, respectively. The side view of squat motions showed moderate to good in the visible hip joint angles, whereas hidden hip joint angle showed poor concurrent validity. The knee joint angles showed variation between excellent and moderate concurrent validity depending on the visibility. The forward reach motions showed moderate concurrent validity for both shoulder angles, whereas the lateral reach motions showed excellent concurrent validity. During the front view of lunge motions, both the hip and knee joint angles showed moderate concurrent validity. The side view of lunge motions showed variations in concurrent validity, while the right hip joint angle showed good concurrent validity; the left hip joint showed poor concurrent validity. (4) Conclusions: The overall agreement between the Azure Kinect and marker-based motion analysis system was moderate to good when the body segments were visible to the Azure Kinect, yet the accuracy of tracking hidden body parts is still a concern. |
| first_indexed | 2024-03-09T15:52:37Z |
| format | Article |
| id | doaj.art-7547a5c5652d4a94858d5d38febdd967 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T15:52:37Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7547a5c5652d4a94858d5d38febdd9672023-11-24T17:55:50ZengMDPI AGSensors1424-82202022-12-012224981910.3390/s22249819Agreement between Azure Kinect and Marker-Based Motion Analysis during Functional Movements: A Feasibility StudySungbae Jo0Sunmi Song1Junesun Kim2Changho Song3Department of Physical Therapy, College of Health Science, Sahmyook University, Seoul 01795, Republic of KoreaRehabilitation Science Program, Department of Health Science, Graduate School, Korea University, Seoul 02841, Republic of KoreaRehabilitation Science Program, Department of Health Science, Graduate School, Korea University, Seoul 02841, Republic of KoreaDepartment of Physical Therapy, College of Health Science, Sahmyook University, Seoul 01795, Republic of Korea(1) Background: The present study investigated the agreement between the Azure Kinect and marker-based motion analysis during functional movements. (2) Methods: Twelve healthy adults participated in this study and performed a total of six different tasks including front view squat, side view squat, forward reach, lateral reach, front view lunge, and side view lunge. Movement data were collected using an Azure Kinect and 12 infrared cameras while the participants performed the movements. The comparability between marker-based motion analysis and Azure Kinect was visualized using Bland–Altman plots and scatter plots. (3) Results: During the front view of squat motions, hip and knee joint angles showed moderate and high level of concurrent validity, respectively. The side view of squat motions showed moderate to good in the visible hip joint angles, whereas hidden hip joint angle showed poor concurrent validity. The knee joint angles showed variation between excellent and moderate concurrent validity depending on the visibility. The forward reach motions showed moderate concurrent validity for both shoulder angles, whereas the lateral reach motions showed excellent concurrent validity. During the front view of lunge motions, both the hip and knee joint angles showed moderate concurrent validity. The side view of lunge motions showed variations in concurrent validity, while the right hip joint angle showed good concurrent validity; the left hip joint showed poor concurrent validity. (4) Conclusions: The overall agreement between the Azure Kinect and marker-based motion analysis system was moderate to good when the body segments were visible to the Azure Kinect, yet the accuracy of tracking hidden body parts is still a concern.https://www.mdpi.com/1424-8220/22/24/9819motion captureactivities of daily livingdepth sensor3D motion analysis |
| spellingShingle | Sungbae Jo Sunmi Song Junesun Kim Changho Song Agreement between Azure Kinect and Marker-Based Motion Analysis during Functional Movements: A Feasibility Study Sensors motion capture activities of daily living depth sensor 3D motion analysis |
| title | Agreement between Azure Kinect and Marker-Based Motion Analysis during Functional Movements: A Feasibility Study |
| title_full | Agreement between Azure Kinect and Marker-Based Motion Analysis during Functional Movements: A Feasibility Study |
| title_fullStr | Agreement between Azure Kinect and Marker-Based Motion Analysis during Functional Movements: A Feasibility Study |
| title_full_unstemmed | Agreement between Azure Kinect and Marker-Based Motion Analysis during Functional Movements: A Feasibility Study |
| title_short | Agreement between Azure Kinect and Marker-Based Motion Analysis during Functional Movements: A Feasibility Study |
| title_sort | agreement between azure kinect and marker based motion analysis during functional movements a feasibility study |
| topic | motion capture activities of daily living depth sensor 3D motion analysis |
| url | https://www.mdpi.com/1424-8220/22/24/9819 |
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