Simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculation
In this paper, to mechanize a human ankle joint stretching treatment that is mainly performed by a PT (Physical Therapist), the geometrical relationships among the Ankle joint, Hip joint, Sole, and pushing device rotation center are analyzed using a simple numerical calculation model, and the effect...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2019-05-01
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| Series: | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jamdsm/13/2/13_2019jamdsm0034/_pdf/-char/en |
| _version_ | 1811223972755275776 |
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| author | Hideki TODA Takeshi MATSUMOTO Shin SUGIHARA |
| author_facet | Hideki TODA Takeshi MATSUMOTO Shin SUGIHARA |
| author_sort | Hideki TODA |
| collection | DOAJ |
| description | In this paper, to mechanize a human ankle joint stretching treatment that is mainly performed by a PT (Physical Therapist), the geometrical relationships among the Ankle joint, Hip joint, Sole, and pushing device rotation center are analyzed using a simple numerical calculation model, and the effectiveness of the model was examined in an actual developed system. The stretching of the ankle joint is an important medical treatment that PTs perform to help their patients to recover their ability to walk and to prevent contracture. Because the ankle joint treatment requires a large amount of force (equal to the subject’s weight) and precise angle control at the same time, manual treatment by PTs has not been replaced by mechanical treatment systems. In a previous study, we developed a new mechanism of ankle joint stretching that involves fixing the length of the subject sitting chair and the device; the novel mechanism can realize comfortable stretching without pain. However, the optimum geometrical relationships among the Ankle joint, Hip joint, Sole, and pushing device rotation center have not been analyzed. In this paper, to develop the effective mechanism of the stretching treatment, the geometrical relationships were analyzed mathematically by using numerical calculation, and the effectiveness of the numerical calculation was confirmed by manufacturing a treatment device comprising two force sensors and two DC motors based on the calculation results. Numerical calculation results show that the PT’s key point of the ankle joint treatment was a position located between the Ankle joint and the pushing device rotation center. The analytical result will effectively promote the development of the mechanical systems used as ankle joint stretching treatment devices. |
| first_indexed | 2024-04-12T08:41:21Z |
| format | Article |
| id | doaj.art-105bdb2d35874bcebd14f437a881ed81 |
| institution | Directory Open Access Journal |
| issn | 1881-3054 |
| language | English |
| last_indexed | 2024-04-12T08:41:21Z |
| publishDate | 2019-05-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| spelling | doaj.art-105bdb2d35874bcebd14f437a881ed812022-12-22T03:39:50ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542019-05-01132JAMDSM0034JAMDSM003410.1299/jamdsm.2019jamdsm0034jamdsmSimple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculationHideki TODA0Takeshi MATSUMOTO1Shin SUGIHARA2Dept. of Electric and Electronic Engineering, Faculty of Engineering, University of ToyamaDept. of Electric and Electronic Engineering, Faculty of Engineering, University of ToyamaDept. of Electric and Electronic Engineering, Faculty of Engineering, University of ToyamaIn this paper, to mechanize a human ankle joint stretching treatment that is mainly performed by a PT (Physical Therapist), the geometrical relationships among the Ankle joint, Hip joint, Sole, and pushing device rotation center are analyzed using a simple numerical calculation model, and the effectiveness of the model was examined in an actual developed system. The stretching of the ankle joint is an important medical treatment that PTs perform to help their patients to recover their ability to walk and to prevent contracture. Because the ankle joint treatment requires a large amount of force (equal to the subject’s weight) and precise angle control at the same time, manual treatment by PTs has not been replaced by mechanical treatment systems. In a previous study, we developed a new mechanism of ankle joint stretching that involves fixing the length of the subject sitting chair and the device; the novel mechanism can realize comfortable stretching without pain. However, the optimum geometrical relationships among the Ankle joint, Hip joint, Sole, and pushing device rotation center have not been analyzed. In this paper, to develop the effective mechanism of the stretching treatment, the geometrical relationships were analyzed mathematically by using numerical calculation, and the effectiveness of the numerical calculation was confirmed by manufacturing a treatment device comprising two force sensors and two DC motors based on the calculation results. Numerical calculation results show that the PT’s key point of the ankle joint treatment was a position located between the Ankle joint and the pushing device rotation center. The analytical result will effectively promote the development of the mechanical systems used as ankle joint stretching treatment devices.https://www.jstage.jst.go.jp/article/jamdsm/13/2/13_2019jamdsm0034/_pdf/-char/enankle joint contracture removalankle joint pushing mechanismnumerical calculationphysical therapist(pt)rehabilitation system |
| spellingShingle | Hideki TODA Takeshi MATSUMOTO Shin SUGIHARA Simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculation Journal of Advanced Mechanical Design, Systems, and Manufacturing ankle joint contracture removal ankle joint pushing mechanism numerical calculation physical therapist(pt) rehabilitation system |
| title | Simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculation |
| title_full | Simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculation |
| title_fullStr | Simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculation |
| title_full_unstemmed | Simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculation |
| title_short | Simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculation |
| title_sort | simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a pt using a numerical calculation |
| topic | ankle joint contracture removal ankle joint pushing mechanism numerical calculation physical therapist(pt) rehabilitation system |
| url | https://www.jstage.jst.go.jp/article/jamdsm/13/2/13_2019jamdsm0034/_pdf/-char/en |
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