• Archives of Reconstructive Microsurgery
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• 제3권1호
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• pp.90-96
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• 1994

1. 교통사고 등으로 인한 외상성 골노출이 8례로 가장 많았으며, 원인으로서는 교통사고가 7례이었고 1례는 기계사고 이었으며, 부위 별로는 하지 경골이 7례, 종골이 1례이었다. 2. 2례의 만성 골수염에서는 유리조직 이식술과 함께 골소파술 및 정주 항생제 요법을 병행하였다. 3. 총 10례중 9례에서 완전 생존하여 90%의 성공률을 보였다. 4. 공여부위에 대한 합병증은 소량의 혈종을 형성한 1례에서 2차 탐구술과 흡인술을 시행하였으며 합병증없이 치유되었다.

• 대한기계학회논문집A
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• 제41권6호
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• pp.469-475
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• 2017

최근 산업현장에서 작업자들의 장시간 작업으로 인한 사고 및 부상의 위험을 방지하기 위하여 작업자들의 근력을 보조할 수 있는 외골격 근력보조 장치에 대한 연구가 활발히 진행되고 있다. 그러나 기존의 외골격 장치들은 작업자의 근력을 보조하기 위하여 모터의 동력을 사용하므로, 고가일 뿐만 아니라 오작동의 위험이 있어서 산업현장에서 매우 제한적으로 사용되었다. 이러한 문제를 해결하기 위해서, 본 연구에서는 센서 및 모터 없이 순수 기계요소들만으로 구성된 근력보조 외골격 장치를 설계 및 제작하였다. 본 외골격 장치는 사람의 손목 관절을 제외한 어깨, 팔꿈치 관절의 동작이 추종 가능하며, 팔의 자중에 의한 중력토크를 상쇄 가능한 중력보상장치를 탑재하여 작업자의 팔에 대한 근력보조를 수행한다. 개발된 외골격 장치의 성능을 검증하기 위하여 EMG 센서를 이용한 근전도 비교 실험을 수행하였고, 실험 결과를 바탕으로 외골격 장치의 근력보조 성능을 확인하였다.

• 대한통합의학회지
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• 제5권3호
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• pp.57-61
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• 2017

Purpose : The purpose of study was to find out the environmental risk factor that can be easily occurred imbalance muscle activities according to direction for using the ramp during one legged standing. Method : The subjects were 20 normal adults with a mean age of $23.15{\pm}2.14years$ and a Body Mmass Index (BMI) of $22.74{\pm}1.07$. Participants were measured muscle activities on vastus medialis, vastus lateralis, tibialis anterior, peroneus longus during one legged stance at four conditions ramp (down ramp, up ramp, medial ramp, lateral ramp). The statistical analyses were performed using IBM SPSS(Ver. 23) and p-value less than .05 were considered statistically significant for all cases. Result : In this study, the activity of the lower extremity muscle and the ratio of the vastus medial and lateral muscles according to the direction of use of the ramp were investigated. The changes in the muscle activity of the lower limbs along the direction of the ramp were significantly different between the vastus medial muscle and the peroneus longus muscle. Conclusion : For a short time on a ramp or a pedestrian crossing, a clerk in a ramp can move or stand by placing the lower limbs in various directions, but if performed in consideration of the individual's disease characteristics or unstable foot position, It is thought that there will be an effect to prevent on the ankle and knee unstability.

• Archives of Reconstructive Microsurgery
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• 제16권2호
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• pp.119-124
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• 2007

Purpose: We reconstructed the skin defect of lower legs exposing muscles, tendons and bone with fasciocutaneous sural artery flap and report our cases. Materials and Methods: Between March 2005 and September 2006, 8 cases of skin defect were reconstructed with fasciocutaneous sural artery flap. Defect site were 4 case of ankle and foot and 4 cases of lower leg. The average defect size was $4{\times}4\;cm^2$. There were 5 men and 3 women and mean age was 52.2 years. We evaluated the viability of flap, postoperative complication, healing time, patient's satisfaction. Results: There was no flap failure in 8 cases. But recurrent discharge in 2 cases was healed through several times adequate debridement and delayed suture without complication. Flap edema may be due to venous congestion was healed through leg elevation and use of low molecular weight heparin. Mean time to heal the skin defect was 4 weeks. No infection and recurrence in follow up period. Cosmetic results as judged by patients were that 5 cases are good and 3 cases are fair. Conclusion: Sural artery flap is good treatment method among the numerous methods in the cases of skin defect, with soft tissue exposed, which is not covered with debridment and skin graft. Sural artery flap is useful method for the skin defect of lower legs because it is simple procedure, has constant blood supply and relatively good cosmetic effect.

• 복식
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• 제54권8호
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• pp.1-14
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• 2004

The aim of this study is to provide fundamental data on the development of ready-to-wear clothing appropriate for the lower body types of male students who play sports in college. The study was conducted by means of targeting 151 male sports majors between $18{\sim}27$ years of age. Characteristics of the respondents were ascertained by means of questionnaires and an evaluation of a total of 36 lower body features. The results of the study are as follows. 1. A comparison of anthropometric measurements with the National Anthropometric Survey of Korea (1997) revealed that the main characteristics of the lower somatotypes of male sports college students are large circumferences and developed muscles of the lower body. 2. Sports were classified into the following five categories : soccer, bodybuilding, wrestling, judo, and taekwondo. In particular, bodybuilding students demonstrated a somatotype with an increased circumference, depth, and width of the thigh and lower body. 3. Somatotypes were classified into 3 types by means of a cluster analysis employing S factors. Type 1 somatotype exhibits a large circumference in the lower body. Type 2 is a lower somatotype of a middle size. Finally, Type 3 encompasses a smaller group in weight and circumference with a developed calf and ankle. 4. Each group was evaluated using a discriminatory analysis as a check to see if the groups had been discriminated with accuracy. The total accuracy rate was 96.0%.

• 근관절건강학회지
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• 제2권2호
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• pp.131-146
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• 1995

Many arthritis patients experience weakness of muscles in extremities mainly due to disuse atrophy and weight gain because of the limited activities and exercises. This study examines the effects of the 6-week aquatic-exercise program on the body fat and the muscle of the rheumatoid arthritis patients. Seventeen patients in the experimental group and 18 in the control group were assigned depending on their preference and physical condition. These patients had more than 3 points of pain out of 10, deformities in knee, wrist and ankle joints. The amount of aquatic exercise increases from 35 minutes in the first week to 60 minutes in the 6th week. In the resting period they discussed their own experiences about exercise, personal and family affairs, and performed some recreation programs in order to increase the self-efficacy and promote the relationship with other patients by the group activities. Skinfold thickness and circumferences of both extremities were measured before and after experiment to compare the difference. For testing the body fat Saham Model was used. Prior to the experiment two group's body weight, skinfold thickness and skin circumferences were not significantly different which indicates the homogeneity of two groups. Body weight and most parts of skinfold thickness of the experimental group were significantly lower than the control group after 6-week aquatic exercise program. Circumference was not significantly lower than the control after the program. These findings indicate the in-crease of muscle sizes and the reduction of the body fat. Therefore a more active application of aquatic exercise into a variety of clients is strongly suggested.

• 한국운동역학회지
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• 제19권2호
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• pp.245-255
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• 2009

본 연구는 낙상을 경험한 여성노인 20명을 각각 10명씩 연령으로 집단을 구분하고 보행 시 하지관절의 협응 능력을 분석하여 운동과학적인 기초자료를 제시하고, 불안정적인 측면의 요소에 효과적으로 대처할 수 있도록 하기 위한 것이다. 이를 위해 보행 시 하지관절의 균형에 대한 기전과 차이를 동작분석과 근전도를 이용하여 비교 분석하여 다음과 같은 결론을 얻었다. 첫째, 보행 시 고관절의 움직임에서 연령증가로 인해 충분하지 못한 지지역할로 보행자세가 저하되어 안정적 이지 못한 패턴을 보였다. 둘째, 무릎관절의 움직임에서 좌우측의 보행패턴이 상이하게 이루어지는 경향을 나타내었다. 셋째, 발목관절의 움직임에서 연령증가와 함께 활보패턴이 비정상적인 경향을 나타내었다. 또한 보행 시 하지 주요근육의 활성정도에 대해 대퇴직근과 대퇴이두근은 무릎의 굴곡을 막기 위해 근수축 활성이 증가되어 전진하는 전기적 특성을 보였고, 전경골근과 내측비복근은 이동 시 높은 전기적 수요를 나타내어 저측굴곡의 비율을 줄여 보행하는 특성을 나타내었다.

• 대한임상전기생리학회지
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• 제10권1호
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• pp.1-5
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• 2012

Purpose : In this study, stroke patients' limits of stability and functional reach test and tibialis anterior, gastrocnemius muscle of lower extremity muscle activities to evaluate the correlation. Methods : 30 adult stroke patients to participate in this study. Limits of stability were measured using biorescue, tibialis anterior and gastrocnemius muscle of muscles activities were measured with functional reach test when there was movement. Results : Limits of stability and functional reach test (r=0.753, p<0.01), RMS value of the limits of stability and tibialis anterior muscle (r=0.706, p<0.01), RMS value of the limits of stability and gastrocnemius muscle (r=0.766, p<0.01), RMS value of the functional reach test and tibialis anterior muscle (r=0.835, p<0.01), RMS value of the functional reach test and gastrocnemius muscle (r=0.663, p<0.01), RMS value of the tibialis anterior and gastrocnemius muscle (r=0.816, p<0.01) correlations are shown as statistically significant. Conclusion : The balance and lower extremity muscle activities of stroke patients were studied, and were positively correlated with the RMS value of the limits of stability and functional reach test, tibialis anterior muscle, and gastrocnemius muscle. This study has shown that stroke patients' ankle joint muscle activity can greatly.

• Physical Therapy Rehabilitation Science
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• 제6권1호
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• pp.7-13
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• 2017

Objective: The aim of this study was to investigate the inter-rater and intra-rater reliability of rehabilitative ultrasound imaging (RUSI) for measurement of muscle thickness with changes in angles of the gluteus maximus (GM) at rest and during contraction. Design: Cross-sectional study. Methods: Twenty-two healthy men volunteered for this study. GM muscle images were obtained in the resting position and during prone hip extension with knee flexion at hip abduction angles of $0^{\circ}$ and $30^{\circ}$, respectively. Two examiners randomly measured the thickness of the GM twice in three different positions. The first position was a comfortable prone position. The second position was prone hip extension with knee flexion (PHEKF) to $90^{\circ}$. The third position was achieved by hanging a 1-kg weight on the ankle of the lifted leg during PHEKF with the angle of the lifted leg the same as the second position. Intra-class correlation coefficients (ICCs), standard error measurements, and minimal detectable changes were used to estimate reliability. Results: The intra-rater reliability ICCs (95% confidence interval) of the GM were >0.870, indicating good reliability. Inter-rater reliability ICCs ranged from 0.668 to 0.913. The reliability of measurements of muscle thickness at each position was similar to the reliability of the angle change. Differences in muscle thickness and ratios for each position with $0^{\circ}$ and $30^{\circ}$ of hip abduction were not statistically significant. Conclusions: In the present study, the intra-rater reliability of muscle thickness measurements of the GM was good, and the inter-rater reliability was moderate to good. Reliable RUSI measurements of wide and large muscles, such as the GM muscle at rest and during contraction, are feasible. Further investigation is required to establish the reproducibility of the protocols presented in this study.

• 한국운동역학회지
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• 제28권1호
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• pp.45-54
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• 2018

Objective: The purpose of this study was to investigate the effect of foot strengthening exercise program and functional insoles on joint angle and plantar pressure in elderly women. Thirteen elderly women who were enrolled in a university senior citizens academy of a metropolitan city in 2017 were divided into two groups: exercise group with functional insole (n=7) and exercise group without functional insole (n=6). Method: Three-dimensional motion analysis and Pedar-X were performed to compute the joint angle and the foot plantar pressure, respectively. Two-way repeated measure ANOVA was conducted to compare dependent variables within and between groups. The significance level was set at ${\alpha}=.05$. Results: The range of motion (ROM) of the ankle, knee, and hip joints in the exercise group with functional insole increased significantly more than the exercise group without functional insole. In both the experimental group and the comparison group, the maximum foot plantar pressure and the mean foot plantar pressure were decreased, but the comparison group without functional insole showed more decrease. Since the experimental group demonstrated greater pressure than the comparison group in the contact area (forefoot, midfoot), it was distributed over a greater area. Conclusion: The results of this study suggest that participation in foot strengthening exercises and using a functional insole has more positive effects than foot strengthening exercises alone on the joint angle and plantar pressure in elderly women. Increased foot plantar pressure led to an increased contact area (forefoot, midfoot) for distribution of the foot plantar pressure, but the effect of reducing the maximum and average plantar pressures was incomplete. However, wearing functional insoles along with exercise, could help in improving the stability of the joints, by increasing the range of motion, and could help the elderly in movement of the muscles more effectively, leading to an improvement in gait function.