• 대한자기공명의과학회:학술대회논문집
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• 대한자기공명의과학회 2000년도 제5차 추계학술대회
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• pp.44-44
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• 2000

• 한국정밀공학회지
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• 제9권2호
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• pp.36-43
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• 1992

In this paper, a robot assembly wrist, which is able to assemble chamferless parts, has been developed. The RCC (Remote Center Compliance) structure is used as a basic structure. 5 position sensors and 4 pneumatic actuators are installed additionally to measure the deformation of RCC structure and correct the errors actively. Due to the restricted direction of actuation, a decision rule which selects the suitable actuator according to the position sensor signals is needed. For this purpose, a neural network is used and it is experimentally shown that the nerual network overcomes system's nonlinearity. This paper presents fundamental experiment results for the insertion of parts with several clearance.

• 대한약침학회지
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• 제7권2호
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• pp.75-81
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• 2004

Objective : The purpose of this study is to report the efficiency of Bee Venom Therapy by managering of radial nerve palsy patients. Method : Three patients were treatmented by Bee Venom therapy and acupucture therapy. And we took pictures of someone's wrist and checked the power of muscles by the improving phase. Results : Almost cases shows the improvement in the movement of wrist and the numbness of hand. By using acuputure and Bee Venom therapy, the symptoms of radial nerv palsy was more fastly recovered.

• 복식문화연구
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• 제6권4호
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• pp.229-237
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• 1998

The ventilation efficiency of clothing was investigated by a trace gas method using a manikin wearing an impermeable overall under an isothermal condition, where the ventilation occurred only through the openings by diffusion. The ventilation patterns were different for each part of the body. The ventilation efficiency in the clothing microenvironment of the arm and the leg greatly depended on the distance from each opening when the wrist- or the ankle-opening was opened. When both side of wrist- or ankle-openings were opened to provide the opening area double respectively, the ventilation efficiency did not correspondingly increase twice, as compared one side opened. Even though it as certainly affected by the opening area, the ventilation efficiency was more significantly influenced by the position of openings.

• 대한정형도수물리치료학회지
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• 제18권1호
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• pp.19-29
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• 2012

Background: This study was conducted to investigate subjective musculoskeletal symptom and the related factor of caregiver. Methods: For 300 caregiver, we used the self-administered questionnaires to examine occupational stress and subjective musculoskeletal symptom designed by KOSHA. The collected data were analyzed chi-square test, independent t-test and multiple logistic regression analysis using SPSS 12.0. Results: The multiple logistic regression analysis showed that the caregiver working in the general hospital significantly increased the subjective musculoskeletal symptom in their neck, shoulder, hand/wrist/finger, back, leg/foot. For the caregiver working in hospital showed significantly increased the subjective musculoskeletal symptom in their hand/wrist/finger and leg/foot. Conclusions: With the above results, continuous and systematic prevention program should be established, which include the ergonomics and psychosocial factor for the caregiver's musculoskeletal symptom.

• The Korean Journal of Physiology
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• 제17권1호
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• pp.37-43
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• 1983

Electromyographic analysis was made in the forearm to clarify the prime mover of the wrist joint in flexion and extension. Loads of 5 and 10 pounds were given to the hand during isometric and isotonic contraction. The results of this study were summarized as follows: 1) M. flexor carpi ulnaris and m. extensor carpi radialis acted as the prime mover during flexion and extension, respectively, of the wrist joint. 2) The flexor and the extensor of the forearm showed synergistic activities under isotonic contraction, but under isometric contraction the flexor only acted. 3) Muscular activity during the isotonic contraction slightly increased compared with the isometric contraction. 4) EMGs and integrated EMGs were somewhat enhanced as the load increased, but there was no significant difference between 5 and 10 pounds load.

• 대한한방부인과학회지
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• 제23권4호
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• pp.196-209
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• 2010

Purpose: To investigate effect of Sweet Bee Venom on postpartum's De Quervain's Disease. Methods: We investigated 3 patients diagnosed as De Quervain's Disease. Sweet Bee Venom Herbal-acupuncture was used for treatment of De Quervain's Disease, once every two days, 5 times. Pain, satisfaction at treatment and function of wrist were measured with VNS, Baumgaertner's nine point scale and dynamometer. Results: Pain reduction, functional improvement, increased grip power were found out in cases treated with Sweet Bee Venom Herbal-acupuncture. In every cases, they represent high subjective satisfaction with treatment. Conclusion: Clinical results show that Sweet Bee Venom Herbal-acupuncture has a good analgesic effect in De Quervain's Disease.

• 한국정밀공학회지
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• 제25권9호
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• pp.126-134
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• 2008

Kendo is one of the popular sports in modem life. Head, wrist and thrust attack are the fast skill to get a score on a match. Human muscle skeletal model was developed for biomechanical study. The human model was consists with 19 bone-skeleton and 122 muscles. Muscle number of upper limb, trunk and lower limb part are 28, 60, 34 respectively. Bone was modeled with 3D beam element and muscle was modeled with spar element. For upper limb muscle modelling, rectus abdominis, trapezius, deltoideus, biceps brachii, triceps brachii muscle and other main muscles were considered. Lower limb muscle was modeled with gastrocenemius, gluteus maximus, gluteus medius and related muscles. The biomechanical stress and strain analysis of human muscle was conducted by proposed human bone-muscle finite element analysis model under head, wrist and thrust attack for kendo training.

• 대한한방내과학회지
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• 제13권2호
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• pp.100-110
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• 1992

For an effective acupuncture treatment, the location of muscles around Sutaeumkyongkun and Suyangmyongkyongkun were researched and they were made contracted. The conclusion is as follows; 1. The contraction of muscles around Sutaeumkyongkun gives appearance of the postures ; free movement of thumb, abduction of extension of wrist, flexion and pronation of elbow, depression and abduction of girdle of superior limb, flexion, internal rotation and horizontal flexion of shoulder joint These postures all together consequently produces the action 'holding something in arms'. 2. The contraction of muscles around Suyangmyongkyongkun gives appearance of the postures; extension of metacarpophalangeal and interphalangeal joint of index finger extension and abduction of thumb, extension of wrist, extension and supination of elbow, adduction, elevation and upward rotation of girdle of superior limb, extension, abduction, adduction, internal rotation, external rotation, horizontal extension of shoulder joint, flexion and opposite rotation of neck. These postures all together consequently produces the action 'raising arms'.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2000년도 춘계 학술대회 및 국제 감성공학 심포지움 논문집 Proceeding of the 2000 Spring Conference of KOSES and International Sensibility Ergonomics Symposium
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• pp.109-112
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• 2000

The purpose of the present study is to evaluate the basic upper-limb involved in products manipulation. Upper-limb muscular deformations and electromyography (EMG) measurements are used as indexes for estimated motion: hand opening and closing, wrist extending and flexing, pronation and supination, grasping conditions. Measured values are analyzed by multivariate analysis and a regression equation is obtained for estimating the characteristics of upper-limb performance. Muscular deformation is defined as a change in shape, such as a pressure changes when the hand or wrist moves. hand opening and closing can be discriminated at a higher percentage of accuracy by muscular deformation data than by EMG data. Muscular deformation measurements using air-pack pressure sensors were verified to be effective in motion estimation applications.