발목의 Dorsiflexion과 Plantarflexion의 치료

신성윤(Seong-Yoon Shin),이현창(Hyun-Chang Lee) 한국컴퓨터정보학회 2017 한국컴퓨터정보학회 학술발표논문집 Vol.25 No.2

The Effects of a Powered Ankle Exoskeleton for Plantarflexion Torque Assistance for the Elderly

Kim, Kyung,Yu, Chang-Ho,Yu, Mi,Jeong, Gu-Young,Ko, Deung-Young,Kwon, Tae-Kyu 한국정밀공학회 2013 International Journal of Precision Engineering and Vol.14 No.2

It is necessary to develop a rehabilitation robot for the assistance of movement of the ankle joint and the enhancement of ankle muscular activities during walking for the elderly. A powered ankle exoskeleton with an artificial pneumatic muscle has been designed to provide powered assistance in the plantarflexion motion of the ankle joint. The objective of this study was to confirm the effectiveness of the powered ankle exoskeleton for the plantarflexion torque of the ankle joint. Fifteen healthy and fifteen elderly people used a wearable ankle exoskeleton during the plantarflexion motion of the ankle joint. Participants were assessed with three parameters to confirm the effectiveness of the system: a) maximal voluntary isokinetic plantarflexion torque using a Biodexdynamometer, b) muscular activities of the lower limbs, c) correlation of the agonist muscle and plantar torque during plantarflexion motion of the ankle joint. The assistance of the plantarflexion motion of the ankle joint is determined by the plantarflexion torque of the artificial pneumatic muscle of the powered ankle exoskeleton, and the assistant timing was decided the detection of subject's movement intention that they did plantarflexion motion of the ankle joint. We developed a muscular stiffness force sensor to detect the activation of the soleus muscle for feed-forward control of the ankle exoskeleton. The experimental results show that the muscular stiffness force of the soleus muscle with feed-forward control was decreased, and the plantarflexion torque of the ankle joint while only wearing the ankle exoskeleton was decreased, but the plantarflexion torque with feed-forward control was increased. The amount of increasing with feed-forward control is higher than that of decreasing only wearing the exoskeleton. Based on the effectiveness of the system with the healthy participants, the elderly may have benefited from the plantarflexion motion augmented by the powered ankle exoskeleton.

The Effects of a Powered Ankle Exoskeleton for Plantarflexion Torque Assistance for the Elderly

김경,권대규,유창호,유미,정구영,고등영 한국정밀공학회 2013 International Journal of Precision Engineering and Vol. No.

It is necessary to develop a rehabilitation robot for the assistance of movement of the ankle joint and the enhancement of ankle muscular activities during walking for the elderly. A powered ankle exoskeleton with an artificial pneumatic muscle has been designed to provide powered assistance in the plantarflexion motion of the ankle joint. The objective of this study was to confirm the effectiveness of the powered ankle exoskeleton for the plantarflexion torque of the ankle joint. Fifteen healthy and fifteen elderly people used a wearable ankle exoskeleton during the plantarflexion motion of the ankle joint. Participants were assessed with three parameters to confirm the effectiveness of the system: a) maximal voluntary isokinetic plantarflexion torque using a Biodexdynamometer,b) muscular activities of the lower limbs, c) correlation of the agonist muscle and plantar torque during plantarflexion motion of the ankle joint. The assistance of the plantarflexion motion of the ankle joint is determined by the plantarflexion torque of the artificial pneumatic muscle of the powered ankle exoskeleton, and the assistant timing was decided the detection of subject’s movement intention that they did plantarflexion motion of the ankle joint. We developed a muscular stiffness force sensor to detect the activation of the soleus muscle for feed-forward control of the ankle exoskeleton. The experimental results show that the muscular stiffness force of the soleus muscle with feed-forward control was decreased, and the plantarflexion torque of the ankle joint while only wearing the ankle exoskeleton was decreased, but the plantarflexion torque with feed-forward control was increased. The amount of increasing with feed-forward control is higher than that of decreasing only wearing the exoskeleton. Based on the effectiveness of the system with the healthy participants, the elderly may have benefited from the plantarflexion motion augmented by the powered ankle exoskeleton.

족관절 보조기를 착용한 고령자의 족관절 족저굴곡 토크 보조특성 분석

김경,강승록,박용군,정구영,권대규 한국로봇학회 2010 로봇학회 논문지 Vol.5 No.1

Ankle-foot orthosis with a pneumatic rubber actuator, which is intended for the assistance and the enhancement of ankle muscular activities was developed. In this study, the effectiveness of the system was investigated during plantarflexion motion of ankle joint. To find a effectiveness of the system, the subjects performed maximal voluntary isokinetic plantarflexion contraction on a Biodex-dynamometer. Plantarfexion torque of the ankle joint is assisted by subject’s soleus muscle that is generated when ankle joint do plantarflexion motion. We used the muscular stiffness signal of a soleus muscle for feedback control of ankle-foot orthosis as physiological signal. For measurement of this signal, we made the muscular stiffness force sensor. We compared a muscular stiffness force of a soleus muscle between with feedback control and without it and a maximal plantarflexion torque between not wearing a ankle-foot orthosis, without feedback control wearing it and with feedback control wearing it in each ten elderly adults. The experimental result showed that a muscular stiffness force of a soleus muscle with feedback control was reduced and plantarflexion torque of an ankle joint only wearing ankle-foot orthosis was reduced but a plantarflexion torque with feedback control was increased.The amount of a increasing with feedback control is more higher than the amount of a decreasing only wearing it. Therefore, we confirmed the effectiveness of the developed ankle-foot orthosis with feedback control.

Analysis of the Assistance Characteristics for the Plantarflexion Torque in Elderly Adults Wearing the Powered Ankle Exoskeleton

Kyung Kim,Jae-Jun Kim,Seung-Rok Kang,Gu-Young Jeong,Tae-Kyu Kwon 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10

Ankle exoskeleton with an artificial pneumatic actuator, which is intended for the assistance and enhancement of muscular activity, was developed. In this study, the effectiveness of the system was investigated during plantarflexion motion of ankle joint. To find an effectiveness of the system, the subjects performed maximal voluntary isokinetic plantarflexion contraction on a Biodex-dynamometer. Plantarfexion torque of the ankle joint is assisted by subject’s soleus muscle that is generated when ankle joint do plantarflexion motion. We used the muscular stiffness signal of a soleus muscle for feed-forward control of ankle-foot orthosis as physiological signal. For measurement of this signal, we made the muscular stiffness force sensor. We compared a muscular stiffness force of a soleus muscle between with feed-forward control and without it and a maximal plantarflexion torque between not wearing a ankle-foot orthosis, without feed-forward control wearing it and with feed-forward control wearing it in each ten elderly adults. The experimental result showed that a muscular stiffness force of a soleus muscle with feed-forward control was reduced and plantarflexion torque of an ankle joint only wearing ankle-foot orthosis was reduced but a plantarflexion torque with feed-forward control was increased.The amount of a increasing with feed-forward control is higher than the amount of a decreasing only wearing it. Therefore, we confirmed the effectiveness of the developed ankle-foot orthosis with feed-forward control.

족관절 보조기를 착용한 젊은 사람과 고령자의 족저굴국 운동 토크 보조 특성 비교

김경,강승록,박용군,정구영,권대규 제어로봇시스템학회 2009 제어로봇시스템학회 합동학술대회 논문집 Vol.2009 No.12

Ankle-foot orthosis(AFO) with a pneumatic rubber actuator, which is intended for the assistance and the enhancement of ankle muscular activities was developed. In this study, appropriate amount of power pattern of the device and the effectiveness of the system was investigated during plantarflexion motion of ankle joint. To find the appropriate amount of power pattern and the effectiveness of the system, the subjects performed maximal voluntary isokinetic plantarflexion contraction of a Biodex-dynamometer. Plantarfexion torque of the ankle joint is assisted by subject’s soleus muscle that is generated when ankle joint do plantarflexion motion. We compared the maximal plantarflexion torque between with active control of the AFO and without it in each ten young and elderly adults. The subjects were performed the gait motion with and without the active control using muscle. We made a comparison the muscular activities between with and without the active control. The experiment results in plantarflexion motion showed that the muscular activities and peak torques with the AFO were reduced and the one wearing it were increased. Therefore, we confirmed the effectiveness of the edveloped AFO.

편평족 중학생의 고관절 교정 운동 프로그램과 발교정구 착용 유무가 안정시 종골기립 각도, 발목의 가동범위, 코어 근력에 미치는 영향

김남희 ( Nam Hee Kim ),이경옥 ( Kyung Ock Yi ) 한국운동역학회 2015 한국운동역학회지 Vol.25 No.4

Objective : The purpose of this study is to evaluate the effects of hip joint exercises and orthotics on RCSP, ankle``s range of motion, and core muscle strength of middle school students with pes planus. Method : Out of the original pool of 200 students, 60 students with pes planus (RCSP < -2) were selected for the study. The selected 60 students were then divided into four groups. The first group was a combined orthotics and exercise group (12 students), the second was the orthotics-only group (9 students), the third was the exercise-only group (8 students), and the last was the control group (10 students). Exercise groups worked out twice a week for 60 minutes per session over 8 weeks. The independent variables were corrective hip joint exercises and orthotics. The dependant variables consisted of kinematic and kinetic variables. The kinematic variables were RCSP, and ankle``s range of motion (dorsiflexion and plantarflexion). The kinetic variables were muscles forces that consist in core muscle strength, which are hip joint adduction, abduction, and flexion muscles forces. Statistical analysis was performed via SPSS 18.0 with multivariate analysis of covariance (MANCOVA) and a paired t-test was used. Results : The left foot was more responsive to the treatments, both exercise and orthotics, than the right foot. RCSP improved significantly in the left foot for the first and third groups. Only the first group significantly improved hip joint adduction, abduction, and flexion muscles`` strengths. As for the ankle``s range of motion of the left foot, plantarflexion showed improvement when treated with exercise, orthotics, or both. Conclusion : This study found that exercise is more effective in correcting RCSP and foot orthotics is more effective in reinforcing core muscle strength. Future studies should expand on these results to examine the relationship between the ankle, hip, and pelvis.

발의 안쪽 굽힘과 바깥쪽 굽힘을 위한 Healthcare System

신성윤(Seong-Yoon Shin),이현창(Hyun-Chang Lee) 한국컴퓨터정보학회 2018 한국컴퓨터정보학회 학술발표논문집 Vol.26 No.2

8주간 노르딕워킹 트레이닝 후 노르딕워킹과 일반걷기의 운동역학적 비교분석

김로빈(Ro Bin Kim),조준행(Joon Haeng Cho) 한국사회체육학회 2012 한국사회체육학회지 Vol.0 No.47

The purpose of this study was to compare the differences of Nordic walking (NW) and normal walking after 8weeks of NW training.. Nine subjects participated. The results were as follows. First, NW showed larger ankle joint range of motion and maximum plantarflexion moment than normal walking. Second, NW showed smaller percentage of knee joint range of motion compared to normal walking. Third, NW showed larger percentage of hip joint range of motion and smaller maximum extension moment than normal walking. This study found that NW reduced the range of motion in the knee and prompted more usage of ankle and hip joint compared to normal walking. Thus NW can be suggested as a good gait exercise for subjects with lower limb joints problem.

노인의 계단 내려가기 동작 시 계단 높이와 하지 관절 모멘트와의 관계 연구

은선덕 ( Seon Deok Eun ) 한국운동역학회 2006 한국운동역학회지 Vol.16 No.4