Mobile Sensor Application for Kinematic Detection of the Knees
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Objective To correctly measure the knee joint angle, this study utilized a Qualisys motion capture system and also used it as the reference to assess the validity of the study’s Inertial Measurement Unit (IMU) system that consisted of four IMU sensors and the Knee Angle Recorder software. The validity was evaluated by the root mean square (RMS) of different angles and the intraclass correlation coefficient (ICC) values between the Qualisys system and the IMU system.Methods Four functional knee movement tests for ten healthy participants were investigated, which were the knee flexion test, the hip and knee flexion test, the forward step test and the leg abduction test, and the walking test.Results The outcomes of the knee flexion test, the hip and knee flexion test, the forward step test, and the walking test showed that the RMS of different angles were less than 6°. The ICC values were in the range of 0.84 to 0.99. However, the leg abduction test showed a poor correlation in the measurement of the knee abduction-adduction movement.Conclusion The IMU system used in this study is a new good method to measure the knee flexion-extension movement.
Abstract
Objective To correctly measure the knee joint angle, this study utilized a Qualisys motion capture system and also used it as the reference to assess the validity of the study’s Inertial Measurement Unit (IMU) system that consisted of four IMU sensors and the Knee Angle Recorder software. The validity was evaluated by the root mean square (RMS) of different angles and the intraclass correlation coefficient (ICC) values between the Qualisys system and the IMU system.Methods Four functional knee movement tests for ten healthy participants were investigated, which were the knee flexion test, the hip and knee flexion test, the forward step test and the leg abduction test, and the walking test.Results The outcomes of the knee flexion test, the hip and knee flexion test, the forward step test, and the walking test showed that the RMS of different angles were less than 6°. The ICC values were in the range of 0.84 to 0.99. However, the leg abduction test showed a poor correlation in the measurement of the knee abduction-adduction movement.Conclusion The IMU system used in this study is a new good method to measure the knee flexion-extension movement.
참고문헌 (19)
- Favre J, "Functional calibration procedure for 3D knee joint angle description using inertial sensors", J Biomech, 42, pp.2330~2335 (2009)
- Luinge HJ, "Measuring orientation of human body segments using miniature gyroscopes and accelerometers", Med Biol Eng Comput, 43, pp.273~282 (2005)
- Favre J, "Ambulatory measurement of 3D knee joint angle", J Biomech, 41, pp.1029~1035 (2008)
- Mayagoitia RE, "Accelerometer and rate gyroscope measurement of kinematics: an inexpensive alternative to optical motion analysis systems", J Biomech, 35, pp.537~542 (2002)
- Dejnabadi H, "A new approach to accurate measurement of uniaxial joint angles based on a combination of accelerometers and gyroscopes", IEEE Trans Biomed Eng, 52, pp.1478~1484 (2005)
- Cooper G, "Inertial sensor-based knee flexion", extension angle estimation, 2009, pp.42, 2678~2685
- Takeda R, "Gait posture estimation using wearable acceleration and gyro sensors", J Biomech, 42, pp.2486~2494 (2009)
- Takeda R, "Gait analysis using gravitational acceleration measured by wearable sensors", J Biomech, 42, pp.223~233 (2009)
- Chardonnens J, "A system to measure the kinematics during the entire ski jump sequence using inertial sensors", J Biomech, 46, pp.56~62 (2013)
- Chardonnens J, "Automatic measurement of key ski jumping phases and temporal events with a wearable system", J Sports Sci, 30, pp.53~61 (2012)
- Rouhani H, "Ambulatory measurement of ankle kinetics for clinical applications", J Biomech, 44, pp.2712~2718 (2011)
- "Direction cosine matrix IMU: theory" (2009)[URL]
- Jaysrichai T, "Application of inertial measurement units for angular motion detection", Proceedings of the 7th International Convention on Rehabilitation Engineering and Assistive Technology (2013)
- Luinge HJ, "Inclination measurement of human movement using a 3-D accelerometer with autocalibration", IEEE Trans Neural Syst Rehabil Eng, 12, pp.112~121 (2004)
- Morris JR., "Accelerometry: a technique for the measurement of human body movements", J Biomech, 6, pp.729~736 (1973)
- Tong K, "Granat MH. A practical gait analysis system using gyroscopes", Med Eng Phys, 21, pp.87~94 (1999)
- Favre J, "A new ambulatory system for comparative evaluation of the three-dimensional knee kinematics, applied to anterior cruciate ligament injuries", Knee Surg Sports Traumatol Arthrosc, 14, pp.592~604 (2006)
- Aminian K, "Capturing human motion using body-fixed sensors: outdoor measurement and clinical applications", Comput Animat Virtual Worlds, 15, pp.79~94 (2004)
- Willemsen AT, "Real-time gait assessment utilizing a new way of accelerometry", J Biomech, 23, pp.859~863 (1990)