• 한국운동역학회지
• /
• 제22권2호
• /
• pp.131-140
• /
• 2012

This study was to investigate the relationship between the distance and projection factors, angle factors of javelin in women's javelin throwing. The data were collected in the 2011 National Sports Festivals for 11 players. Three-Dimensional motion analysis using a system of 4 video cameras at a sampling frequency of 60 fields/s was performed for this study. The factors of release conditions calculated using Matlab 2009a program. The statical analysis on the records(n=42) included mean and standard deviation of the mean(SD), Pearson's product moment correlation coefficient(SPSS Version 16.0 for Windows). There was a statistically significant positive relationship between the records and release velocity(r=.866, p<.01), height(r=.433, p<.01) and height rate(r=.340, p<.05). The attitude angle, release angle, and attack angle showed not a statistically significant relationship between the records. The medial-lateral tilt angle of javelin showed not a statistically significant relationship between the records, but the yaw angle of javelin(r=.549, p<.01) showed a statistically significant positive relationship between the records.

• 대한정형외과스포츠의학회지
• /
• 제9권2호
• /
• pp.98-103
• /
• 2010

목적: 슬개골 재발성 탈구 환자에 있어 관절경 보조하의 외측 유리술 및 내측부 중첩술의 결과를 보고하고자 한다. 대상 및 방법: 재발성 슬개골 탈구로 수술적 치료를 받은 20 명의 환자, 21례를 대상으로 하였다. 남자가 4 명, 여자가 16명이고 평균연령 20.2세였다. 모든 환자가 외상의 병력이 있었고 평균 추시 기간은 19개월이었다. 수술 결과의 평가는 Lysholm점수와 Kujala슬관절 점수를 이용하였고, 방사선 사진상 congruence angle, lateral patellofemoral angle을 측정하였고, 전산화 단층촬영에서 tibial tuberosity-trochlear groove distance를 측정하였다. 결과: 단순 방사선 사진상 congruence angle은 술전 중위값 $16.5^{\circ}$ (범위, $0.0{\sim}+34^{\circ}$) 에서 추시 시 $-6.4^{\circ}$ (범위, $-19{\sim}10^{\circ}$), lateral patellofemoral angle은 술전 중간값 -4.5도(범위, $-8{\sim}+6^{\circ}$)에서 $4.0^{\circ}$ (범위, $2.0{\sim}10^{\circ}$)로 호전되었다(p=0.034). Lysholm 점수는 수술 전 중위값 70점(범위, 63~81점)에서 최종 추시 시 중위값 88점(범위, 80~95점)이었다(p=0.341). Kujala 슬관절 점수는 수술 전 중위값 72점(범위,65~80점)에서 수술 후 중위값 87점(범위, 80~92점)으로 호전되었다. (p=0.024). 재발성 탈구는 총 2례에서 발생하였으며 1례는 thumb to forearm검사 양성이었던 경우로 재탈구 되어 내측 슬개대퇴인대 재건술을 시행하였다. 결론: 관절경적 외측 유리술 및 내측부 중첩술은 대퇴슬개관절의 골성 부정정렬이 없는 경우에서 시행하여 좋은 결과를 얻을 수 있었지만, 관절 이완이 심한 환자에서는 좀 더 주의가 필요하다고 사료된다.

• The Journal of Korean Physical Therapy
• /
• 제31권1호
• /
• pp.24-30
• /
• 2019

Purpose: This study compared the effectiveness of three methods, fascial distortion model (FDM), myofascial release (MFR), self-myofascial release (SMR), on the neck range of motion and pain. Methods: In this study, the collected data were processed statistically using SPSS version 22.0 for Windows. Descriptive statistics were used to analyze the general characteristics of the subjects. Repeated measure ANOVA was conducted to analyze the range of motion of the neck of the group and VAS, and Contras was used to see the difference in significance over time. One-way ANOVA was used to compare the differences among the groups and a post-hoc test was used. The significance level (${\alpha}$) was 0.05. Results: In the range of motion, the flexion and extension of the neck, right rotation, and left rotation were significantly different in the SMR, FDM, and MFR groups. The right lateral flexion showed significant differences in the FDM, MFR, and SMR groups. The VAS was similar in the groups at 2 and 4 weeks, but there was a significant difference among the FDM, MFR, and SMR groups at 6 weeks. Conclusion: In this study, MFR and MSR as well as FDM were effective in controlling the range of motion and pain control of the neck. Further studies will be needed to determine the effects of long-lasting treatments other than pain control. These studies and the present study will be used as a basis for ongoing research into the duration and method of application for musculoskeletal therapies.

• Archives of Plastic Surgery
• /
• 제36권1호
• /
• pp.38-45
• /
• 2009

Purpose: The congenital muscular torticollis is a neck deformity involving shortening of the sternocleidomastoid muscle, which is detected at birth or shortly after birth. This childhood disease is the third most common congenital musculoskeletal anomaly. The indication for surgery is a persistent head tilt with dificit of passive rotation and lateral bending of the neck and a tight band or tumor in the sternocleidomastoid muscle even after physical therapy. The purpose of this article is to report surgical outcomes with patients who had no or little response to physical therapy. Methods: Surgery was performed on 29 patients and their average age was 4.1 years (from 6 months to 20.1 years). The unipolar open release and partial myectomy were done in 28 cases and the muscle lengthening was done in 1 case. Physical therapy was started from postoperative seventh day. Follow - up period was ranged from 2 months to 5.4 years(mean follow - up, 20.4 months). Result: There were neither rotation nor lateral bending deficit after surgical treatment. Mild head tilt was noticed in 3 cases and residual bend was observed in 4 cases. The subjective assessments of surgical results by parents were excellent. Conclusion: Our surgical outcome encourages the surgical treatment of congenital muscular torticollis for patients who failed to respond to physical therapy.

• Geomechanics and Engineering
• /
• 제14권5호
• /
• pp.421-428
• /
• 2018

In deep mining, the lateral deformation of strip coal pillar appears to be a new characteristic. In order to study the lateral deformation of coal-mass, a monitoring method and monitoring instrument were designed to investigate the lateral deformation of strip coal pillar in Tangkou Coalmine with the mining depth of over 1000 m. Because of without influence of repeated mining, the bedding sandstone roof is easy to break and the angle between maximum horizontal stress and the roadway is small, the maximum lateral deformation is only about 287 mm lower than the other pillars in the same coalmine. In deep mining, the energy accumulation and release cause a discontinuous damage in the heterogeneous coal-mass, and the lateral deformation of coal pillar shows discontinuity, step and mutation characters. These coal-masses not only show a higher plasticity but also the high brittleness at the same time, and its burst tendency is more obvious. According to the monitoring results and theoretical calculations, the yield zone of the coal pillar width is determined as 15.6 m. The monitoring results presented through this study are of great significance to the stability analysis and design of coal pillar.

• Clinics in Shoulder and Elbow
• /
• 제13권2호
• /
• pp.293-298
• /
• 2010

목적: 주관절은 굴곡 구축 40도 이상 굴곡 제한 105도 이하일 경우 일상 생활에 상당한 장애를 일으킬 수 있는 관절로 그 치료의 정도 및 시기를 결정하기가 상당히 어려운 것으로 알려져 있다. 이에 이 종설에서는 현재까지 인정된 주관절 구축의 수술적 접근법에 대하여 고찰하여 보도록 하겠다. 대상 및 방법: 환자의 병력을 포함하여 충분한 임상적 조사를 하는 것이 중요하다. 그리고 방사선학적 방법을 이용하여 환자의 주관절 구축에 대한 원인 및 상태를 정확히 파악하고 그에 적합한 수술법을 선택한다. 수술법으로는 관절경적 유리술 (arthroscopic release) 및 관혈적 유리술 (Open release), 견인 관절 성형술 (Distraction Arthroplasty), 인공관절 치환술 (Total elbow replacement)이 있으며 관혈적 유리술은 4가지 기본 도달법 -전방 도달법 (anterior approach), 내측 도달법 (medial "over the top" approach), 제한된 외측 도달법 (limited lateral approach: column procedure) 광범위 후방 도달법 (posterior extensile approach)-으로 분류될 수 있다. 결과 및 결론: 현재 주관절 구축의 수술은 관절경의 발달로 인한 최소 침습적인 방법이 대두되고 있으나 그 경과의 판정은 아직 미미하며 그에 대한 문헌 보고가 많지 않은 상태로 고식적인 개방성 접근법을 이용하는 것을 원칙으로 하고 있으며 접근법에 따른 분류를 사용하고 있다.

• 대한음성학회지:말소리
• /
• 제21_24호
• /
• pp.144-175
• /
• 1992

This paper aims to discuss determining factors of Korean allophones and to formulate and classify Korean allophonic rules systematically. The relationship between allophones and coarticulation, the most. influential factor of allophonic variation, is thoroughly investigated. Other factors -- speech tempo and style, dialect, and social factors such as age, set, class etc. -- are also briefly discussed. Allophonic rules are classified into two groups -- 3) those relevant to coarticulation and 2) those irrelevant to coarticulation. Rules of the first group are further classified into four subgroups according to the directionality of the coarticulation. Each allophonic nile formulation is explained and discussed in detai1. The allophonic rules formulated and classified in this paper are 1) Devoicing of Voiced Consonants, 2) Devoicing of Vowels, 3) Nasal Approach and Lateral Approach, 4) Uvularization, 5) Palatalization, 6) Voicing of Voiceless Lax Consonants, 7) Frication, 8) Labialization, 9) Nasalization, 10) Release Withholding and Release Masking, 11) Glottalization, 12) Flap Rule, 13) Vowel Weakening, and 14) Allophones of /ㅚ, ㅟ, ㅢ/ (which are realized as diphthongs or as monophthongs depending on phonetic contexts).

• 대한정형외과스포츠의학회지
• /
• 제3권1호
• /
• pp.60-65
• /
• 2004

목적: 슬개골 상외측부 통증을 동반한 이분슬개골의 치료로 시행한 제한적 외측지대 유리술의 단기 추시 결과를 분석하고자 하였다. 연구대상 및 방법: 1995년 1월부터 2002년 6월까지 통증을 동반한 이분슬개골을 주소로 내원한 환자들 중 제한적인 외측지대 유리술을 시행받은 14명의 환자 16예를 대상으로 하였다. 환자는 전 예에서 남자였으며 평균 연령은 22.3세 (20$\~$44세)였고 방사선학적 검사상 이분슬개골은 Saupe 분류상 2형이 3예, 3형이 13예였다. 핵의학적 검사상 이분슬개골 부위에 동위원소 섭취증가의 소견을 보였다. 수술은 관혈적 방법을 이용하여 이분슬개골에 부착된 외측 광근건을 골막하에서 분리하였다. 임상적으로는 통증의 감소 여부와 활동정도, 방사선학적으로 이분슬개골편의 경사도(fragment tilting angle)와 이분슬개골편의 슬개골과의 간격 등을 술전과 후를 비교하여 평가하였고 평균 추시기간은 14개월 (12$\~$16개월)이었다. 결과: 제한적 외측지대 유리술 후 이분슬개골 부위의 통증을 호소한 예는 없었으며 임상평가상 전예에서 양호 이상의 결과를 보였다. 방사선학적 평가상 이분슬개골편의 경사도와 이분슬개골편과 슬개골과의 간격은 술전에 비해 통계적으로 의미있는 감소의 소견을 보였다. 결론: 통증을 동반한 이분슬개골의 치료에 있어서 제한적인 외측지대 유리술은 보다 덜 침습적인 치료방법으로 임상적 및 방사선학적으로 양호한 결과를 가져와 상기 질환의 치료로서 우수한 치료방법으로 사료된다.

• 한국화재소방학회:학술대회논문집
• /
• 한국화재소방학회 1997년도 International Symposium on Fire Science and Technology
• /
• pp.193-200
• /
• 1997

Flame spread and heat release properties and incident heat flux of interior materials subject to an igniter heat flux in a compartment are investigated and compared by using computer model. A comer fire ignition source is maintained for 10 minutes at 100 kw and subsequently increased to 300kw. In executing the model, base-line material properties are selected and one is changed for each run. Also 4 different igniter heat flux conditions and examined. Results are compared for the 12 different materials tested by the ISO Room Comer Test (9705). The time for total energy release rate to reach 1MW is examined. The parameters considered include flame heat flux and thermal inertia, lateral flame spread parameter, heat of combustion and effective heat of gasfication. The model can show the importance of each property in causing fire growth on interior Hnish materials in a compartment. The effect of ignitor heat flux and material property effects were demonstrated by using dimensionless parameters a, b and Tb. Results show that for b greater than about zero, flashover time in the ISO Room-Corner test is principally proportional to ignition time and nothing more.

• 대한두개안면성형외과학회지
• /
• 제20권4호
• /
• pp.255-259
• /
• 2019

Craniofacial cleft is a rare disease, and has multiple variations with a wide spectrum of severity. Among several classification systems of craniofacial clefts, the Tessier classification is the most widely used because of its simplicity and treatment-oriented approach. We report the case of a Tessier number 3 cleft with wide soft tissue and skeletal defect that resulted in direct communication among the orbital, maxillary sinus, nasal, and oral cavities. We performed soft tissue reconstruction using the straight-line advanced release technique that was devised for unilateral cleft lip repair. The extension of the lateral mucosal and medial mucosal flaps, the turn over flap from the outward turning lower eyelid, and wide dissection around the orbicularis oris muscle enabled successful soft tissue reconstruction without complications. Through this case, we have proved that the straight-line advanced release technique can be applied to severe craniofacial cleft repair as well as unilateral cleft lip repair.