lmplementing inertial sensors to quantify whole-body orientation in the roll plane

Abstract : Objective: The present study describes the validity, feasibility and reliability of a new system of wearable inertial motion sensors to measure body segments orientation in the roll plane, especially useful to evaluate lateropulsion for stroke patients. lmplementation: We consistently explained the process of sensor selection and tested their validity. After selecting the body-segments and the relative placement of sensors, we established a calibration procedure and tested reliability of first measurements in a laboratory environment. As the results were excellent, we focused on the feasibility of the procedure to determine the ideal protocol for patients routine testing. We finally selected clinically useful data and established a smart data processing workflow. Application: During implementation, we observed several interesting gait and posture behaviors, especially discussed for stroke patients suffering from a bias in their verticality perception. We computed a first reliability analysis on 6 patients with promising results on average inclination and maximum reached angle of body segments for static and dynamic tasks (ICCs 0.77 - 0.95). Measuring instability of each task using standard deviation of measures showed a poor reliability except for sit-to-stand task (ICC = 0.71 (0.37;0.88)). Prospects: This protocol will be carried out in two upcoming national research protocols about lateropulsion (SCALA) and virtual reality in rehabilitation (VIRGIL). Conclusion: Our new method demonstrates a feasible, cheap, portable, easy to use, clinically useful and reliable tool in measuring body segments orientations in the roll plane especially for stroke patients.
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Master Thesis
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Stanislas Giroux. lmplementing inertial sensors to quantify whole-body orientation in the roll plane. Human health and pathology. 2018. ⟨dumas-02169374⟩

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