Validity and reliability assessment of joint angle measurement using inertial sensors placement on the examiner
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- JONO Yasutomo
- Department of Rehabilitation, Faculty of Health Science, Naragakuen University
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- NODA Yuki
- Department of Rehabilitation, Faculty of Health Science, Naragakuen University
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- MAEDA Yoshiki
- Department of Rehabilitation, Faculty of Health Science, Naragakuen University
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- YAMAMOTO Hidemi
- SunCity Kizu, Half Century More Co., Ltd.
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- IKEDA Koji
- Department of Rehabilitation, Faculty of Health Science, Naragakuen University
Bibliographic Information
- Other Title
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- 計測者に設置した慣性センサによる関節角度計測の妥当性と信頼性の検討
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Description
<p>Purpose: This study aimed to validate and assess the reliability of IMUrater, a method for measuring joint angles by placing Inertial Measurement Unit (IMU) sensors on the measurer's body.</p><p>Methods: Sixteen healthy adults were included, and the validity and reliability of IMUrater were compared with an optical motion capture (OMC) system using cameras for motion analysis.</p><p>Results: The coefficient of multiple correlation (CMC) and root mean square error (RMSE) between the IMUrater and the OMC-based method were 0.93 and 31.20 degrees, respectively. Within sessions, IMUrater showed a CMC of 0.95, a RMSE of 19.40 degrees, and an intraclass correlation coefficient (ICC) of 0.92, while between sessions, the values were 0.85, 35.74 degrees, and 0.19, respectively.</p><p>Conclusion: IMUrater demonstrated high validity in relative joint angles. Within-session reliability was high, with strong agreement in time series waveform data indicated by CMC. However, between-session reliability showed lower agreement, with substantial discrepancies observed in absolute angle measurements.</p>
Journal
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- Japanese Journal of Community-based Comprehensive Physical Therapy
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Japanese Journal of Community-based Comprehensive Physical Therapy 3 (0), 77-85, 2024-03-31
Japanese Society of Community-based Comprehensive Physical Therapy
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Keywords
Details 詳細情報について
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- CRID
- 1390299673814702080
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- ISSN
- 27580318
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- Text Lang
- ja
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- Data Source
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- JaLC
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- Abstract License Flag
- Allowed