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...

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Published inJournal of Advanced Mechanical Design, Systems, and Manufacturing Vol. 13; no. 2; p. JAMDSM0034
Main Authors TODA, Hideki, SUGIHARA, Shin, MATSUMOTO, Takeshi
Format Journal Article
LanguageEnglish
Published Tokyo The Japan Society of Mechanical Engineers 01.01.2019
Japan Science and Technology Agency
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ISSN1881-3054
1881-3054
DOI10.1299/jamdsm.2019jamdsm0034

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Abstract 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of force (equal to the subject’s weight) and precise angle control at the same time, manual treatment by PTs has not been replaced by mechanical treatment systems.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.
AbstractList 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.
Author SUGIHARA, Shin
MATSUMOTO, Takeshi
TODA, Hideki
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References Toda Hideki, Takeuchi Shinya, Takeshi Matsumoto, Experimental Study of Ankle Joint Pushing Mechanism Concerning About the Horizontal Movement of Talus, Journal of Robotics and Mechatronics, Vol. 29, No. 2 (2017), pp. 299-305.
Suzuki Syoshi, Matumoto Akihiro, Rehabilitation of knee, ankle joint with pneumatic actuator, IIP information, Intelligence and Precision Equipment Division Conference Proceedings (2005), pp. 355-358.
Tsukamoto Yuudai, Wada Kenzo, Fujii Fumitake, Tamura Tomohiro, Performance of the ankle joint stretching apparatus, Welfare Engineering Symposium (2008), pp. 141-144. (in Japanese)
Syuichi Kakurai, Rehabilitation system, The Japanese Journal of Rehabilitation Medicine, Vol. 31, No. 3 (1994-03-18), pp. 205-212.
Onodera T., Suzuki E., Ding M., Takemura H., Mizoguchi H., Force, Stiffness and Viscous Damping Control of a Stewart-Platform-Type Ankle-Foot Rehabilitation Assist Device with Pneumatic Actuator, Journal of Robotics and Mechatronics, Vol. 25, No. 6 (2013), pp. 897-905.
Hagbarth K.E. , Hagglund J.V. , Nordin M., Wallin E.U., Thixotropic Behaviour of human finger flexor muscle with accompanying changes in spindle and reflex responses to stretch, The Journal of Physiology (1985), pp. 323-342, Nov.
Mansfield P. J., Neumann D. A.,Essentials of Kinesiology for the Physical Therapist Assistant 2nd Edition (2013), St. Louis, MO: Mosby Elsevier.
Toda Hideki, Tanizaki Ryota, Advanced ankle contracture removal system, Japan patent JP2014-113095 (2014)
Watanabe Hiroshi, Matuoka Jun,Nashimoto Satoshi, Koga Ryosei, Oomori Go,Endo Kazuo, Tanaka Masahide, Nawada Atushi, Sasaki Rieko, Study of the quadriceps muscle tension level change caused by lower limb muscle strength-training equipment for the valid duration of static stretching, Koseiren Medical Journal , Vol. 22 (2013), pp. 34-38.
Hayashibara Yasuo, Hakogi Hokuto, Watanabe Kotaro, Development of rehabilitation for CPM device using a variable stiffness mechanism, Robotics and Mechatronics Conference abstracts (2003), p. 75. (in Japanese)
Tanaka Eiichirou, Ikehara Tadaaki, Yusa Hirokazu, Sato Yusuke, Sakurai Tomohiro, Saegusa Shozo, Ito Kazuhisa, Yuge Louis, Walking-Assistance Apparatus as a Next-Generation Vehicle and Movable Neuro-Rehabilitation Training Appliance, Journal of Robotics and Mechatronics, Vol. 24, No. 5 (2012), pp. 851-865.
Mero A., Komi P. V., Gregor R. J., Biomechanics of sprint running, A Review. Sports Medicine, Vol. 13, No. 6 (1992), pp. 376-392.
Nagasawa Ken, Shiraishi Sei, Muscle oxygen saturation of the expansion site and the effect on the muscle blood flow from the difference of extension time of static stretching, Physical Eduation Research, Vol. 56, No. 2 (2011), pp. 423-433. (in Japanese)
Noda Yuiko, Sasaki Satoru, Iwasa Shiho, Ooura Takashi, Tate Hiroaki, Takahashi Mituhiko, Development of a simple device for the ankle dorsiflexion limitation of movement prevention, Hokkaido Social Insurance Hospital Bulletin 6 (2006), pp. 15-18.
Toda Hideki, Tanizaki Ryota, Imaeda Takeshi, Ankle contracture removal system, Japan patent JP2012-153658 (2012)
Toda Hideki, Matsumoto Takeshi, Tanizaki Ryota, Imaeda Takeshi, Ankle joint push- ing mechanism by stabilization of ankle position using a brace structure, Journal of Advanced Mechanical Design Systems and Manufacturing, Vol. 10, No.1 (2016), pp. 1-11.
Fukui Kunihiko, Maeda Shinji, Rehabilitation of old man (2010), Igaku-syoin. (in Japanese)
Matsumoto Takeshi, Toda Hideki, A Proposed Mechanism for Ankle Joint Rehabilitation Using a Brace Structure, International Conference on Ubiquitous Healthcare (u-Healthcare 2015), Osaka, pp. 136-137.
Matuura Daisuke, Koga Tatuya, Takeda Gyosei, Development mechanism of ankle rehabilitation device having a joint load reduction function, 30th anniversary annual conference of the Robotics Society of Japan meeting (2012), RSJ2012. (in Japanese)
Nomura K., T. Yonezawa T., Takemura H., Mizoguchi H., Development of Six-DOF Human Ankle Motion Control Device Using Stewart Platform Structure for Fall Prevention, Journal of Robotics and Mechatronics, Vol. 28, No. 5 (2016), pp. 654-663.
Nagase Sumiya, Saga Nobuhiko, Suga Syunkou, Development of ankle prevention instrument using pneumatic artificial muscles, Life support medical welfare Engineering Society Joint Conference, 2D1-4 (2010), pp. 289-291. (in Japanese)
Yasuno Suguru, Kamamo Takuya, Suzuki Shigeyuki,Harada Hironobu, Fundamental study and trial of the ankle joint power assist system, IEICE technical report, MBE, Bio cybernetics and ME, 103(184), 35-3 (2003).
Hamada Keisuke, Sasaki Makoto, Effects of Static Stretching on Jumping Ability:from Physiological and Functional Aspects, Japanese Journal of Physical Therapy Science, Vol. 23, No.3, pp.463-467 (2008). (in Japanese)
Saga Norihiko, Saito N., Nagase Jyun-ya, Ankle Rehabilitation Device to Prevent Contracture Using a Pneumatic Balloon Actuator, International Journal of Automation Technology, Vol. 5, No. 4 (2011), pp. 538-543.
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References_xml – reference: Hayashibara Yasuo, Hakogi Hokuto, Watanabe Kotaro, Development of rehabilitation for CPM device using a variable stiffness mechanism, Robotics and Mechatronics Conference abstracts (2003), p. 75. (in Japanese)
– reference: Nagase Sumiya, Saga Nobuhiko, Suga Syunkou, Development of ankle prevention instrument using pneumatic artificial muscles, Life support medical welfare Engineering Society Joint Conference, 2D1-4 (2010), pp. 289-291. (in Japanese)
– reference: Watanabe Hiroshi, Matuoka Jun,Nashimoto Satoshi, Koga Ryosei, Oomori Go,Endo Kazuo, Tanaka Masahide, Nawada Atushi, Sasaki Rieko, Study of the quadriceps muscle tension level change caused by lower limb muscle strength-training equipment for the valid duration of static stretching, Koseiren Medical Journal , Vol. 22 (2013), pp. 34-38.
– reference: Mansfield P. J., Neumann D. A.,Essentials of Kinesiology for the Physical Therapist Assistant 2nd Edition (2013), St. Louis, MO: Mosby Elsevier.
– reference: Matuura Daisuke, Koga Tatuya, Takeda Gyosei, Development mechanism of ankle rehabilitation device having a joint load reduction function, 30th anniversary annual conference of the Robotics Society of Japan meeting (2012), RSJ2012. (in Japanese)
– reference: Hamada Keisuke, Sasaki Makoto, Effects of Static Stretching on Jumping Ability:from Physiological and Functional Aspects, Japanese Journal of Physical Therapy Science, Vol. 23, No.3, pp.463-467 (2008). (in Japanese)
– reference: Onodera T., Suzuki E., Ding M., Takemura H., Mizoguchi H., Force, Stiffness and Viscous Damping Control of a Stewart-Platform-Type Ankle-Foot Rehabilitation Assist Device with Pneumatic Actuator, Journal of Robotics and Mechatronics, Vol. 25, No. 6 (2013), pp. 897-905.
– reference: Toda Hideki, Tanizaki Ryota, Advanced ankle contracture removal system, Japan patent JP2014-113095 (2014)
– reference: Syuichi Kakurai, Rehabilitation system, The Japanese Journal of Rehabilitation Medicine, Vol. 31, No. 3 (1994-03-18), pp. 205-212.
– reference: Saga Norihiko, Saito N., Nagase Jyun-ya, Ankle Rehabilitation Device to Prevent Contracture Using a Pneumatic Balloon Actuator, International Journal of Automation Technology, Vol. 5, No. 4 (2011), pp. 538-543.
– reference: Toda Hideki, Takeuchi Shinya, Takeshi Matsumoto, Experimental Study of Ankle Joint Pushing Mechanism Concerning About the Horizontal Movement of Talus, Journal of Robotics and Mechatronics, Vol. 29, No. 2 (2017), pp. 299-305.
– reference: Matsumoto Takeshi, Toda Hideki, A Proposed Mechanism for Ankle Joint Rehabilitation Using a Brace Structure, International Conference on Ubiquitous Healthcare (u-Healthcare 2015), Osaka, pp. 136-137.
– reference: Tsukamoto Yuudai, Wada Kenzo, Fujii Fumitake, Tamura Tomohiro, Performance of the ankle joint stretching apparatus, Welfare Engineering Symposium (2008), pp. 141-144. (in Japanese)
– reference: Nagasawa Ken, Shiraishi Sei, Muscle oxygen saturation of the expansion site and the effect on the muscle blood flow from the difference of extension time of static stretching, Physical Eduation Research, Vol. 56, No. 2 (2011), pp. 423-433. (in Japanese)
– reference: Fukui Kunihiko, Maeda Shinji, Rehabilitation of old man (2010), Igaku-syoin. (in Japanese)
– reference: Nomura K., T. Yonezawa T., Takemura H., Mizoguchi H., Development of Six-DOF Human Ankle Motion Control Device Using Stewart Platform Structure for Fall Prevention, Journal of Robotics and Mechatronics, Vol. 28, No. 5 (2016), pp. 654-663.
– reference: Suzuki Syoshi, Matumoto Akihiro, Rehabilitation of knee, ankle joint with pneumatic actuator, IIP information, Intelligence and Precision Equipment Division Conference Proceedings (2005), pp. 355-358.
– reference: Toda Hideki, Tanizaki Ryota, Imaeda Takeshi, Ankle contracture removal system, Japan patent JP2012-153658 (2012)
– reference: Toda Hideki, Matsumoto Takeshi, Tanizaki Ryota, Imaeda Takeshi, Ankle joint push- ing mechanism by stabilization of ankle position using a brace structure, Journal of Advanced Mechanical Design Systems and Manufacturing, Vol. 10, No.1 (2016), pp. 1-11.
– reference: Tanaka Eiichirou, Ikehara Tadaaki, Yusa Hirokazu, Sato Yusuke, Sakurai Tomohiro, Saegusa Shozo, Ito Kazuhisa, Yuge Louis, Walking-Assistance Apparatus as a Next-Generation Vehicle and Movable Neuro-Rehabilitation Training Appliance, Journal of Robotics and Mechatronics, Vol. 24, No. 5 (2012), pp. 851-865.
– reference: Hagbarth K.E. , Hagglund J.V. , Nordin M., Wallin E.U., Thixotropic Behaviour of human finger flexor muscle with accompanying changes in spindle and reflex responses to stretch, The Journal of Physiology (1985), pp. 323-342, Nov.
– reference: Yasuno Suguru, Kamamo Takuya, Suzuki Shigeyuki,Harada Hironobu, Fundamental study and trial of the ankle joint power assist system, IEICE technical report, MBE, Bio cybernetics and ME, 103(184), 35-3 (2003).
– reference: Mero A., Komi P. V., Gregor R. J., Biomechanics of sprint running, A Review. Sports Medicine, Vol. 13, No. 6 (1992), pp. 376-392.
– reference: Noda Yuiko, Sasaki Satoru, Iwasa Shiho, Ooura Takashi, Tate Hiroaki, Takahashi Mituhiko, Development of a simple device for the ankle dorsiflexion limitation of movement prevention, Hokkaido Social Insurance Hospital Bulletin 6 (2006), pp. 15-18.
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SubjectTerms Ankle
Ankle joint contracture removal
Ankle joint pushing mechanism
D C motors
Electric motors
Health services
Mathematical models
Mechanical systems
Numerical calculation
Pain
Physical Therapist(PT)
Pushing
Rehabilitation system
Rotation
Stretching
System effectiveness
Title Simple geometrical analysis for mechanizing the ankle joint stretching treatment procedure of a PT using a numerical calculation
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