Two-Step Validation of a New Wireless Inertial Sensor System: Application in the Squat Motion

The use of Inertial Measurement Units (IMUs) can provide embedded motion data to improve clinical application. The objective of this study was to validate a newly designed IMU system. The validation is provided through two main methods, a classical sensor validation achieved on a six-degrees-of-free...

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Bibliographic Details
Published inTechnologies (Basel) Vol. 10; no. 3; p. 72
Main Authors Blandeau, Mathias, Guichard, Romain, Hubaut, Rémy, Leteneur, Sébastien
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.06.2022
MDPI
Subjects
Back pain
Biomechanics
concordance
Correlation coefficients
Gravity
inertial measurement units
Inertial platforms
Inertial sensing devices
Kinematics
Mechanics
Motion capture
Musculoskeletal diseases
Optoelectronics
Physics
Reference systems
Rehabilitation
Rotation
Sensors
squat
validation
Velocity
squat
validation
inertial measurement units
concordance
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Summary:The use of Inertial Measurement Units (IMUs) can provide embedded motion data to improve clinical application. The objective of this study was to validate a newly designed IMU system. The validation is provided through two main methods, a classical sensor validation achieved on a six-degrees-of-freedom hexapod platform with controlled linear and rotation motions and a functional validation on subjects performing squats with segmental angle measurement. The kinematics of the sensors were measured by using an optoelectronic reference system (VICON) and then compared to the orientation and raw data of the IMUs. Bland–Altman plots and Lin’s concordance correlation coefficient were computed to assess the kinematic parameter errors between the IMUs and VICON system. The results showed suitable precision of the IMU system for linear, rotation and squat motions.
ISSN:2227-7080
2227-7080
DOI:10.3390/technologies10030072