• 한국운동역학회지
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• 제19권1호
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• pp.149-157
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• 2009

본 연구의 목적은 한국의 대표적인 배드민턴화(A Type)와 외국 배드민턴 브랜드제품(B Type)의 생체역학적인 변인들을 비교함으로서 한국제품의 착화감과 기능을 향상시켜 세계적인 수준의 배드민턴화 개발에 일조하는데 목적을 두었다. 분석변인들로는 동작 간 신발 안에서 발의 상대적인 움직임, 지면반력과 압력분포, 아웃솔의 마찰력등을 분석하였다. 또한 17명의 피험자를 통한 주관적인 착화감과 기능에 관련된 주관적인 실험이 실시되었다. A Type 배드민턴화의 경우 높은 뒤꿈치의 위치와 밋밋한 뒷굽의 형태로 신발 안에서 뒤꿈치를 잘 잡아주지 못하는 것으로 나타났다. 따라서 A Type 배드민턴화가 약 40%이상 발이 신발 안에서의 미끄러짐 현상이 일어났으며 충격력의 형태나 최대 압력분포도 높게 나타났다. Type A 신발의 경우 Type B와 같이 자연스러운 굴곡이 발의 볼쪽에서 일어나지 않고 전족부근에서 일어났다. 요약을 하면, 두 신발 간에 몇몇 차이점들이 발견되었고 A Type 배드민턴화의 기능을 향상하기 위해서 보완가능 요인들이 제시되었다.

• 한국운동역학회지
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• 제28권3호
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• pp.165-173
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• 2018

Objective: The purpose of this study is to provide biomechanical basis data for the analysis of the maximum vertical ground reaction force, the maximum plantar pressure, the average plantar pressure, and the contact area according to the type of the insole through the insole insertion type foot pressure gauge. Method: In the treadmill, the slope was set at 10%, the first type A was worn at a walking speed of 3.5 km / h, and then walking was carried out using B, C, and D types. Data from 20 boots with consistent walking were extracted and plantar pressure data were collected and analyzed. Results: Functional insole was more effective than conventional insole for maximum vertical ground reaction force, maximum plantar pressure, average plantar pressure, and contact area at 10% of treadmill ramps. Conclusion: In this study, D-type insole supports the cushion in the middle part and supports the heel cup with hardness in the hind part, so that it is the most effective insole by lowering the plantar pressure and dispersing it more widely.

• 전기학회논문지
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• 제63권12호
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• pp.1722-1725
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• 2014

An experimental investigation of COP(center of pressure) was performed using FSR(force sensing resistor) and force plate. The FSR sensor system is used as effective device to detect the movement of human body in activities of daily living. It has been shown that the FSR provides the trajectories of COP with repeatability and reliability.

• 대한한의정보학회지
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• 제14권1호
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• pp.43-54
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• 2008

The term keratosis covers a variety of growths such as warts and pressure-induced callosities. Warts develop in the absence of pressure, and often clear up again after a certain period, usually without treatment. Clavi can develop as a result of wearing poorly fitting shoes, but also deformed toes or other anatomical deformities affecting the foot. The resulting non-anatomical stressing leads to the formation of pressure callosities and even to pressure sores. It confronts hereupon, it searched the cure against the clavus with fructus mume(烏梅) and it arranged. The possibility of getting the result regarding the clavus treatment with fructus mume(烏梅) from the oriental medicine it was.

• 한국운동역학회지
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• 제24권4호
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• pp.455-461
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• 2014

The purposes of this study were to reveal the kinematic and kinetic difference of hard ground soccer shoe, firm ground soccer shoe and soft ground soccer shoe. Soccer players were shoes of varying stud designs with some preferring the bladed studs while others opting for the conventional studded stud. Statistics were used one way-ANOVA and Tukey's Honestly Significant Difference Method. Seven healthy college soccer players were attended a test. All parameters were recorded using the Zebris system. Spatio-temporal variables were no significant difference. Lateral symmetry was statistically significant differences (p<.05). Vertical GRF parameters were no significant difference. Medial midfoot pressure, lateral midfoot pressure and central forefoot pressure were statistically significant differences (p<.05). This study demonstrates that playing surface significantly affects difference soccer shoes during soccer game. Furthermore, epidemiological investigation is warranted to determine the effects of playing surfaces on sport specific injury mechanisms.

• 한국정밀공학회지
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• 제31권11호
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• pp.1041-1050
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• 2014

A design and analysis for new foot sensor that measures pressure distribution while walking or running in daily life is introduced. In the process of the sensor design, the shape, mechanism composing of the sensor, and variables that dominate sensor's sensitivity are investigated. Through these variables analysis, an optimal shape and dimension were determined. The effects of variables on sensor's sensitivity and the relationship between each variable are proved by analyses and experiments.

• 대한물리의학회지
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• 제10권3호
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• pp.39-45
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• 2015

PURPOSE: The purpose of this study was to investigate the effect of weight shift training with electrical sensory simulation feedback on quiet standing balance in hemiplegic stroke patients. METHODS: 30 stroke patients were equally allocated at random to an experimental group or a control group. Patients in both two groups underwent comprehensive rehabilitation physical therapy for 30 minutes per day for 5 days per week for 4 weeks. Members of the experimental group received additional weight shift training with electrical sensory simulation feedback was conducted for 15 minutes after 30 minute sessions, whereas members of the control group underwent additional leftward/rightward weight shift training by themselves after 30 minutes per day for four weeks. COP (center of pressure) path lengths, COP velocities, and foot forces were measured before and immediately after the 4-week training period in both groups and results were compared. RESULTS: COP path lengths significantly decreased by 3% after training in the experimental group and this was significantly greater than that observed in the control group (p<0.05). In both groups, foot forces of affected sides showed significant increases after intervention, whereas foot forces of unaffected sides showed significant decreases (p<0.05). No significant difference was observed between the two groups with respect to these changes. CONCLUSION: Weight shift training using electrical sensory simulation feedback has a positive effect on quiet standing balance in hemiplegic stroke.

• 대한인간공학회지
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• 제23권1호
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• pp.39-48
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• 2004

In terms of women engaged in clerical job. working time of the workers who mainly keep standing with their high-heeled shoes on has been increasing. According]y. they are exposed to many kinds of foot deformation caused by loads of lower back and lower extremities due to high-heeled shoes. The type of heels they usually wear are diverse though the hight is same. In this study. we investigated most women's favorite styles of shoes concerned with heights. types and contact areas of the heels. Hence. we designed three kinds of shoes for an experiment: their contact areas with ground are 1 cm2. 2-4 cm2 and over 9 cm2 according to the heel heights. respectively. To investigate the biomechanical effects. analysis of motion and EMG were applied to the experiments. In addition. foot pressure distribution was measured for more detailed analysis. Six healthy young women were participated in this experiments. The result showed the heel becoming higher and narrower increased not only fluctuation of CBM(Center of Body Mass). but also the load of low back muscle and lower extremities. Accordingly. there was significant difference among types of the heel in terms of the role supporting load of the body. though the height is same. Especially. the difference among the pressures on a foot was most significant. In conclusion. we verified biomechanical effects are related with the contact area of a heel with ground as well as the hight.

• Journal of Yeungnam Medical Science
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• 제36권2호
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• pp.92-98
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• 2019

Forefoot disorders are often seen in clinical practice. Forefoot deformity and pain can deteriorate gait function and decrease quality of life. This review presents common forefoot disorders and conservative treatment using an insole or orthosis. Metatarsalgia is a painful foot condition affecting the metatarsal (MT) region of the foot. A MT pad, MT bar, or forefoot cushion can be used to alleviate MT pain. Hallux valgus is a deformity characterized by medial deviation of the first MT and lateral deviation of the hallux. A toe spreader, valgus splint, and bunion shield are commonly applied to patients with hallux valgus. Hallux limitus and hallux rigidus refer to painful limitations of dorsiflexion of the first metatarsophalangeal joint. A kinetic wedge foot orthosis or rocker sole can help relieve symptoms from hallux limitus or rigidus. Hammer, claw, and mallet toes are sagittal plane deformities of the lesser toes. Toe sleeve or padding can be applied over high-pressure areas in the proximal or distal interphalangeal joints or under the MT heads. An MT off-loading insole can also be used to alleviate symptoms following lesser toe deformities. Morton's neuroma is a benign neuroma of an intermetatarsal plantar nerve that leads to a painful condition affecting the MT area. The MT bar, the plantar pad, or a more cushioned insole would be useful. In addition, patients with any of the above various forefoot disorders should avoid tight-fitting or high-heeled shoes. Applying an insole or orthosis and wearing proper shoes can be beneficial for managing forefoot disorders.

• 디지털융복합연구
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• 제12권4호
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• pp.349-356
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• 2014

본 연구는 최근 높아지고 있는 혈관질환의 주요 요인인 흡연의 폐해를 유산소 운동을 통해 개선되는지의 여부를 규명하고, 나아가 유산소 운동을 통해 흡연자들의 혈관건강(혈압, 맥압, 혈관탄성)에 운동이 미치는 긍정적인 영향에 대하여 알리고자 하는데 목적이 있다. 대상자들은 40~55세의 흡연남성 40명을 대상으로, 20명은 유산소 운동그룹(Aerobic Exercise Group: AEG), 20명은 비 운동 그룹(Non Exercise Group: NEG)로 나누어 실행하였으며, 대상자 40명의 혈압과 맥압, 혈관탄성을 측정 후 AEG군은 12주간 1주일에 3회, 1회 50분 동안 유산소운동 프로그램에 따라 운동하였고, NEG군은 12주 동안 특별한 실험 조치 없이 평소와 같이 생활하도록 한 후, 12주 후 혈압과 맥압, 혈관탄성을 실험 전과 같은 방법으로 측정하였다. 실험결과 두 그룹 간 수축기 혈압의 차이는 유의한 수준을 나타내지 않았고 이완기 혈압은 유의한 수준을 나타내었다. 맥압의 측정 결과 두 그룹 간 유의한 차이가 나타났다. 혈관탄성의 결과 왼손, 오른손, 왼발, 오른발의 모든 측정 부위에서 두 그룹 간 유의한 차이가 나타났다. 따라서 유산소 운동이 흡연 중년남성의 혈관건강에 긍정적인 영향을 미치는 것으로 나타났다.