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      • Quantitative Evaluation Support System of Shoulder Joint Function using Three-Dimensional Force Display Robot

        Ryosuke Takeichi,Noritaka Sato,Yoshifumi Morita,Kenji Komori 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10

        In the rehabilitation field, there is a need for quantitative evaluation independent of the therapist’s subjective evaluation. In our previous work, we developed a binary-valued quantitative evaluation algorithm for the motor function of the shoulder joint based on sensor data from a test performed by therapists. In this paper, we developed a quantitative evaluation support system by implementing the binary-valued quantitative evaluation algorithm of the motor function and verified the effectiveness of the proposed system. The quantitative evaluation support system uses a three-dimensional force display robot that can imitate the test motion and the evaluation by the therapist. For this purpose, we analyzed the test motion and the evaluation by the therapist for ten subjects to determine two threshold parameters used in the binary-valued quantitative evaluation algorithm. In order to verify the evaluation accuracy in the test using the developed quantitative evaluation support system, we conducted the test using the developed system for three subjects. The sensitivity was 75% and the specificity was 75% in the test using the developed system. We plan to improve on the evaluation accuracy in our future work.

      • Screening Test Robot for Functional Decline of Shoulder Joint

        Keita Kamada,Noritaka Sato,Yoshifumi Morita,Hiroyuki Ukai,Kenji Komori,Shinya Taguchi 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10

        In this paper, we propose a screening test robot for prevention and early detection of functional decline of the shoulder joint. For this purpose, we used a three-dimensional reaction force display robot (3D robot) that executed a method for quantitatively evaluating shoulder joint functions. We focused on two shoulder joint functions: one is flexibility/stability, and the other is cooperativeness. In the screening test for functional decline of flexibility/stability, the 3D robot measured the maximum isometric force exerted on the brace of the 3D robot by a subject. In the screening test for functional decline in cooperativeness, the 3D robot measured the maximum isokinetic force exerted on the brace by the subject and the rotational angle of the upper limb during the testing motion. We propose procedures for implementing the two kinds of screening tests using the 3D robot, and we developed a control method. We verified the effectiveness of the proposed screening robot in executing these procedures, the control method, and the quantitative evaluation method.

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