• 한국전문물리치료학회지
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• 제9권3호
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• pp.23-37
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• 2002

This study examined the muscle recruitment order during extension of the hip joint in normal subjects, and evaluated whether the external support obtained from wearing a lumbosacral corset had an effect on muscle recruitment leading to increased lumbar stability. The subjects were 40 normal adults (32 male, 8 female) with no history of low back pain and no pathological findings in the nervous or musculoskeletal systems. All subjects extended their hip joints under 3 positions (prone, sidelying, standing). During extension, the onsets of contraction of the rectus abdominis, gluteus maximus, and semitendinosus muscles were measured. Electromyographic activity was measured using a surface electrode, and the muscle contraction onset time was designated as the point exceeding a threshold of 25 ms, using a mean plus twice of the standard deviation. To compare the average order of muscle contraction onset time, a Freedman two-way analysis of variance by ranks was used. The relative difference between muscle contraction onset time wearing and not wearing a lumbosacral corset was measured using a paired t-test. A difference in the average muscle contraction onset order for the rectus abdominis, gluteus maximus, and semitendinosus muscles was observed (p<.05) among three positions. However, wearing a lumbosacral corset did not. change the contraction order. In addition, wearing a lumbosacral corset produced a significant difference (p<.05) in the relative onset time between the rectus abdominis and gluteus maximus in the standing position, but no difference was observed for the other muscles or positions. In the future, patients suffering from low back pain should be compared with normal subjects to determine the effectiveness of a lumbosacral corset in changing muscle recruitment order.

• 대한관절경학회지
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• 제4권2호
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• pp.144-147
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• 2000

목적 : 화농성 고관절 질환에 대한 치료 중 관절경적 처치의 방식을 제시하고, 경과를 평가하고자 하였다. 대상 및 방법 : 급성 성인형 화농성 고관절염 환자 9례를 대상으로 하였으며. 관절 천자와 임상 검사에 의해 확진되면 즉시 응급으로 관절경적 변연 절제술 및 세척술을 시행하였고, 술후 적혈구 침강 속도 및 C-반응성 단백의 수치를 검사하면서 경과 관찰을 시행하였다. 결과 : 혈액 검사상 적혈구 침강 속도의 정상화는 11.9일, C-반응성 단백은 평균 8.9일이 소요되었다. 1년 추시 결과 전례에서 관절 기능이 정상이었으며, 혈액 검사상 감염의 증거를 발견 할 수 없었다. 결론 : 화농성 고관절염 환자에서 시행되는 관절경적 변연 절제술 및 세척술은 개방적 관절 절개 술식에 비해 관절 주변의 구조물 손상을 최소화하면서도, 좋은 결과를 얻을 수 있는 유용한 방식 줌의 하나로 사료된다.

• 한국화재소방학회논문지
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• 제34권2호
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• pp.103-109
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• 2020

이 연구는 기본심폐소생술 교과목을 이수한 응급구조과 학생을 대상으로 수행자 엉덩관절 각도에 따라 기본심폐소생술의 질이 향상되는지 알아보고자 하였다. 기본심폐소생술 중 엉덩관절 각도에 따른 기본심폐소생술 질(가슴압박 깊이, 완전한 이완, 압박속도 등)을 측정하기 위해 SimPad SkillReporter와 Resusci Anne® QCPR®을 이용하여 비교 분석하였고, 2015 AHA Guideline 따랐으며, 가슴압박과 인공호흡의 비율은 30:2로 5주기 시행하였다. 실험군과 대조군의 일반적인 자세에서는 엉덩관절 각도, 인공호흡정도, 가슴압박 깊이, 가슴압박 속도, 가슴압박 이완, 가슴압박 정확도, 가슴압박 중단시간(Hands off time), 가슴압박 적용시간 비율은 큰 차이를 보이지 않았다(p > 0.05). 엉덩관절 각도를 90도로 유지하는 기본심폐소생술은 유지하지 않았을 때와 큰 차이는 없었으나, 적정깊이와 100% 이완에서는 좋은 결과를 보여 주어 보다 더 나은 심폐소생술 질 향상을 기대할 수 있을 것이다.

• 한국운동역학회지
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• 제14권3호
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• pp.203-218
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• 2004

The purpose of this study was to analyze the comparisons of the kinematical variables when performing Yoko Ukemi(side breakfall) by three Stage in Judo. The subjects were four male judokas who were trainees Y. I. University Squad members and the Yoko Ukemi were filmed by two S-VHS 16mm video cameras(60fields/sec.). The selected times were subject to KWON 3D analysis program and kinematical analysis to compare variables of three Yoko Ukemi. Temporal variables(total time-required : TK, TR by each phase), the body part touched order on the mat and COG variables were computed through video analysis while performing right Yoko Ukemi by three stage. From the data analysis and discussion, the following conclusions were drawn : 1. Temporal variables : total time-required(TR) when performing Yoko Ukemi(side breakfall) by each stage, the first stage(full squat posture: FP : 1.11sec.) showed the shortest time, the next was 3rd(Shizenhontai, straight natural posture: NP : 1.41sec.), and 2nd(Jigohontai, straight defensive posture, DP : 1.42sec.), respectively- 2. TR when performing Yoko Ukemi(side breakfall) by each stage, and phase : the first phase(take of phase, average 0.68sec.) showed the longest time, next was the third phase(ukemi phase, 0.39sec.), and the second phase(air phase, 0.23sec.), respectively. 3. When performing yore Ukemi the body part touched order and TR on the mat : hip(0.94sec.) showed the shortest time, the next was elbow hand(0.97sec.), back(0.98sec.), and shoulder(1.04sec.) order. The hip part touched on the mat the first, but slap the mat in order to alleviate the shock try hand palm and forearm before receiving impact (difference 0.03sec,) 4. Vertical COG variables in each event by each stage : e1(ready position, average 78.33cm) moved the highest, the next was e2(jumping position, 70.14cm), e3(transition position, average 64.00cm), e4(landing position, average 35.99cm), and e5(ukemi position, average 18.32cm) order, gradual decrease respectively. And the difference of COG were showed in initial by each stage, because position fo Yoko Ukemi was difference by each stage in preparation position, but in accordance with executing of Ukemi phase that difference of COG was by decreasing, almost equal displacement in e4(landing) and e5(Ukemi)position finally.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1997년도 춘계학술대회논문집
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• pp.100-106
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• 1997

The purpose of this study is to measure perceived joint discomfort in the seated and standing position, and to provide a ranking system of joint discomfort measured in this study. Seven male subjects with no history of musculo-skeletal disorders participated in the experiment. Their physical characteristics were: age -$27.6 {\pm}1.8$ years, stature -$171.0 {\pm}5.5cm$, and body weight -$66.4{\pm}9.3kg$. The results showed that perceived joint discomfort was different depending on the human body joints involved in motion and their movement directions, which imply that the human body motions should be classified intoseveral distinct classes that need to be assigned different weights of postural stress. In the seated postion, the hip movement was the most stressful, the back was the second, and the shoulder was the third. Similarly, in standing postures, the hip was given the highest ranking, followed by the back, and the wrist.

• 복식문화연구
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• 제19권5호
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• pp.929-944
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• 2011

The purpose of this study was to compare and analyze two original forms of slacks for thesis to extract outward appearance of design original form applying design measures of the above through diverse research methods. The results of this study are as follow: In original form F, the original form of slacks sloper suitable to elderly women 65~9 years old was W/4+3.5+0.5cm in the front/back circumference of waist, H/4cm in the front/back circumference of hip, (H/4+1+3.8)/2cm in the position of centerline, 19cm in actual measurement value of hip length, 25cm in actual measurement value of crotch depth, (knee crotch circumference~bottom line)/2+10cm and 90 (side waist dot~ lateral malleolus length)cm in actual measurement. front dart position was 1/3 and 2/3 of front waist centerline and back dart position was 1/3 and 2/3 of back waist circumference. It was suggested that front dart quantity (length) was 3.5(11)cm, back dart quantity 3.4 (10.2)cm, side waist up quantity 0.7cm, back down quantity 1.5cm, front crotch width (H/4+1)/4-1cm, back crotch width (H/4+1)/4+4, front knee width 21.8cm, back knee width 24.4cm, front pant leg 20.8cm, and back pant leg 23.4cm.

• The Journal of Korean Physical Therapy
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• 제19권6호
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• pp.11-15
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• 2007

Purpose: This study examined the various patterns of standing to squatting activities, and reports the testing standard and phases for examining the standing to squatting position. Methods: One thousand, normal college students (500 males, 500 females) volunteered for this study. The patterns are performed by naked eye analysis with two video cameras. Results: The patterns from the standing to squatting position are as follows 1. parallel with the heel on the pattern: 2. parallel with the heel off the pattern: 3. closed with the heel on the pattern: 4. closed with the heel on the pattern: 5. open with the heel on the patternand 6. open with the heel on the pattern. Conclusion: The phases of the standing to squatting position are as follows: phase I from standing to the anterior parts of the knees reaching the anterior limit of the BOS, phase II from phase I until the height of the hip and knee joints are the same, phase III from phase II until there was no full squatting and the heels broke contact with the floor and phase IV from phase III full squatting on the heels in contact with the floor.

• 응용통계연구
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• 제31권3호
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• pp.353-366
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• 2018

영상에 의한 인체의 운동 분석에서 발생하는 오차 중 가장 큰 부분을 차지하는 것은 피부와 같은 연조직의 골격에 대한 상대운동이며 이를 STA라 한다. 본 연구의 목적은 고관절 운동 중 대퇴에서 발생하는 STA를 선형혼합모형을 이용하여 예측하는 것이다. 모형에 포함되어 있는 고정효과는 고관절 회전중심과 마커의 위치로 대퇴 골격에 의한 운동의 효과, 임의효과는 고관절 중심으로부터 각 마커의 편차로 STA에 의한 효과로 각각 가정하였다. 이를 위하여 근골격계 질환 경력이 없는 다섯 명의 남성 피험자를 선정하여 대퇴에 아홉 개의 마커를 부착하여 고관절의 기능적 운동을 수행하였다. 동시에 고속카메라를 이용하여 마커의 3차원 좌표를 얻었다. 이 3차원 위치벡터에 선형혼합모형을 적용하여 임의효과를 예측하였다. 분석결과 다섯 명의 피험자는 비슷한 패턴을 보였다. 고관절에 가까운 지점의 STA가 큰 것으로 나타났으며 작은 크기를 보인 부분은 원위 대퇴의 전방이다.

• 한국운동역학회지
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• 제21권1호
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• pp.47-55
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• 2011

The purpose of this study was to perform a kinematic analysis of Harai-goshi(hip throw) in superior female judo players. From our analysis, it appeared desirable for the player to shorten the duration of the technique for maximum results. It was also desirable for the player to draw the opponent backward while simultaneously maneuvering her close to her own body. A turning movement of the body toward the left side was found to be required for the technique, during which the player must lower the position of the center of gravity. During the subsequent angular change of the elbow, the player winds the elbow and, by moving the left shoulder, pulls the opponent toward her. The player lowers the body center by bending the left knee and letting the right knee extend, while turning the upper body and bending the hip joint. The player then draws the opponent in, contacts the opponent closely, turns, and stretches the right knee and hip joint rapidly and concisely, completing the move; it was also found to be desirable for the angular velocity to be increased for maximum efficacy.

• 한국의류학회지
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• 제31권3호
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• pp.463-474
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• 2007

With rapid expansion in e-retailing of apparel business, personalized fitting model service shows the possibility as the differentiated marketing strategy in cyber shopping. According as necessity of personalized fitting model construction rises, it is tried personalized fitting model creation in several fields such as computer engineering, mechanical engineering, information engineering. But, because existent study was concentrated only on human body modeling, it does not reflect average morphological characteristics of human body properly. In this study, we wish to examine if morphing is fit for expressing characteristic of average human body shape and suggest desirable morphing. We used 3-D scan data of 254 Korean middle aged men collected by Size Korea 2004. The result of this study are as follows: Lower body types were categorized by height hip girth and lower drop(hip girth-navel girth) which were main factors of lower body shape. Then each factor was divided into 3 groups respectively, 30% in the middle, over 30%, under 30%. In 27 groups, the group which belonged to 30% in the middle of height, 30% in the middle of hip girth, 30% in the middle of lower drop was selected as a representative group. We tested geometrical figure by differ volume, tilt, position of point. And we created a representative type of men's lower bodies by morphing the representative group and analyzed it's horizontal, vertical sections. A representative type which was created by morphing reflected a real body and changed realistically at the part of hip, crotch, calf muscle and so on. A cross sections of a representative type were similar to average cross sections of the representative group in size and shape. So it was proved that morphing was successful.