• Journal of Periodontal and Implant Science
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• 제46권2호
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• pp.96-106
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• 2016

Purpose: Stress distribution and mandible distortion during lateral movements are known to be closely linked to bruxism, dental implant placement, and temporomandibular joint disorder. The present study was performed to determine stress distribution and distortion patterns of the mandible during lateral movements in Class I, II, and III relationships. Methods: Five Korean volunteers (one normal, two Class II, and two Class III occlusion cases) were selected. Finite element (FE) modeling was performed using information from cone-beam computed tomographic (CBCT) scans of the subjects' skulls, scanned images of dental casts, and incisor movement captured by an optical motion-capture system. Results: In the Class I and II cases, maximum stress load occurred at the condyle of the balancing side, but, in the Class III cases, the maximum stress was loaded on the condyle of the working side. Maximum distortion was observed on the menton at the midline in every case, regardless of loading force. The distortion was greatest in Class III cases and smallest in Class II cases. Conclusions: The stress distribution along and accompanying distortion of a mandible seems to be affected by the anteroposterior position of the mandible. Additionally, 3-D modeling of the craniofacial skeleton using CBCT and an optical laser scanner and reproduction of mandibular movement by way of the optical motion-capture technique used in this study are reliable techniques for investigating the masticatory system.

• The Journal of Korean Physical Therapy
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• 제32권5호
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• pp.319-324
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• 2020

Purpose: This study was to investigate the effect of dorsal neck muscle fatigue on the cervical range of motion (CROM) and proprioception in adults with the forward head posture (FHP). Methods: Thirty pain-free subjects were enrolled in this study. All subjects were measured the forward head angle by taking the capture of the sagittal plane of their upper body to determine the FHP. Subjects were distributed into two groups: the FHP group (n=14) and Control group (n=16). All subjects were measured the CROM and the Head repositioning accuracy (HRA) for joint proprioception before and after inducing muscle fatigue of the dorsal neck. The CROM and HRA were measured in neck flexion, extension, right-left lateral flexion, and right-left rotation. Sorenson's test was used to induce muscle fatigue of the dorsal neck. Results: Total CROMs were significantly decreased after dorsal neck muscle fatigue in both groups (p<0.05). Total HRAs were significantly increased after dorsal neck muscle fatigue in the FHP group (p<0.05), but there were no significant differences in the control group (p>0.05). Total CROM changes were not significant differences between groups (p>0.05), but total HRA changes were significant differences between groups (p<0.05) except for right and left lateral flexion (p>0.05). Conclusion: Immediate CROM and proprioception reduction after the dorsal neck muscle fatigue were observed in adults with the FHP. Therefore, FHP can significantly affect the CROM and positioning consistency of cervical proprioception.

• The Journal of Korean Physical Therapy
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• 제17권4호
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• pp.519-535
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• 2005

The main purpose of this study is to evaluate the effects of manual therapies which are Posterior Anterior Central Vertebral Pressure (PACVP) and Posterior Anterior Unilateral Vertebral Pressure(PAUVP} in patients having a chronic pain in the neck. This study focused on sixty patients having a chronic pain in the neck from 19 years old and 65years old. There are 33 females and 27 males each. This study randomize two groups from all subjects that have been mentioned above. Group 1 received a cervical spine manual therapy, Group 2 received a conservative physical therapy. Each therapy was held for 3 times a week, totally, 6 times for two weeks. The tape was used to measure cervical range of motion(ROM) in six areas-flexion, extension, left lateral flexion, right lateral flexion, left rotation, right rotation. 100mm Visual Analogue Scale(100mm VAS) was used to measure the subjective pain level. All measurements of each patient were measured at pre-treatment and 2 weeks post-treatment. The results of this study would be summarized as follow: 1. The manual treatment group has much more recovery than that of conservative physical therapy group in terms of the degree of the ROM improvement showing a significant difference between two groups(p<0.05) 2. The manual treatment group has more recovery than that of the conservative physical therapy group in the improvement of pain(p<0.05).

• 대한족부족관절학회지
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• 제13권2호
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• pp.138-141
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• 2009

Purpose: Regardless of potential and actual complications, the sesamoidectomy either tibial side or fibular side or both, had been used as a surgical option for various pathologic conditions. The objective of this cadaveric study was to identify the changes of range of motion of great toe after sesamoidectomy. Material and Methods: Eight fresh cadaver legs were used. The angular changes of the hallucal articulations were measured by traction of the flexor hallucis longus tendon at the proximal border of fibro-osseous tarsal tunnel and by traction of the extensor hallucis longus tendon at the superior border of inferior extensor retinaculum. The measurement started at neutral position and proceeded to the maximum for respective tendons. After sesamoidectomy either partial or total, same procedures were repeated and the angular changes were measured. Results: In flexion of great toe, there were significant metatarsophalangeal angular differences at 1 cm traction in total sesamoidectomy and lateral sesamoidectomy. In extension of great toe, there were significant metatarsophalangeal angular differences at more than 2 cm traction in total sesamoidectomy. In other measurements, there were no significant angular changes of the hallucal articulations. Conclusion: The sesamoidectomy resulted in change of motion of great toe. Statistical analysis showed that the significant increases in the initial flexion and maximal extension occurred with total sesamoidectomy and the significant increase in the initial flexion occurred with lateral sesamoidectomy.

• 대한정형도수물리치료학회지
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• 제24권1호
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• pp.57-65
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• 2018

Background: This study examined the effects of nerve mobilization exercise and scapula postural correction exercise and scapula postural correction exercise after applying conservative physical therapy to frozen shoulder. Methods: Thirty-four outpatients were divided into a nerve mobilization exercise and scapula postural correction exercise group and scapula postural correction exercise group. Each group performed its own exercise 30 minutes per day, three times per week, for 6 weeks. Pain intensity was measured by the visual analogue scale. Range of motion was measured by the goniometer. The scapular position was measured by scapular index. Grasping power was measured by the Grip Track Commander. Measurements were made at baseline and six weeks after the intervention. Results: the visual analogue scale, range of motion (except lateral rotation), and grasping power for each group showed significant changes at baseline and six weeks after the intervention (p<.05). Significant differences were also evident between the two groups for these three measurements (p<.05). Conclusions: Nerve mobilization exercise & scapula postural correction exercise is more effective than scapula postural correction exercise for reducing pain intensity and increasing grasping power, scapular index and range of motion (except lateral rotation) in frozen shoulder syndrome patients.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 추계학술대회
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• pp.867-869
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• 2012

FRUC(Frame Rate Up Conversion) 기법은 더욱 높은 품질의 단말기 또는 낮은 채널 전송율을 갖는 응용 시스템에서는 꼭 필요한 요소 기술이다. 본 논문에서는 이러한 응용분야를 위하여 양방향 대칭형 탐색에 기초한 FRUC 기법에서 생성된 움직임 보상 보간 프레임에 대하여 블록기반의 신뢰성을 평가하는 방법을 제안한다. 먼저 신뢰도를 측정할 수 있는 시간적 정합특성과 공간적 정합특성과 움직임 벡터의 균일성 분석을 통해 측정되는 비용함수를 도입하고, 비용 함수들의 조합을 통하여 실제 발생된 왜곡의 크기순과 매우 상관성이 높은 정렬 방식을 제안한다. 다양한 모의실험을 통하여 제안 방식은 높은 왜곡 블록을 찾는데 효과적임을 보인다. 또한, 제안방식은 FRUC기법과 더불어 분산 비디오 부호화 기술에도 효과적으로 활용될 수 있을 것으로 기대된다.

• Clinics in Shoulder and Elbow
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• 제14권1호
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• pp.84-88
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• 2011

목적: 전완부 총 신근 건 기시부 생긴 석회화 건염 2예를 보고하고자 한다. 대상 및 방법: 좌측 주관절 굴곡 구축과 통증을 주소로 내원한 42세 여자 환자로 단순 방사선 및 자기공명영상 촬영 후 전완부 총 신근 건 기시부의 석회화 건염 진단 하에 수술적 제거술을 시행하였다. 우측 주관절의 급성 통증 및 운동 제한을 주소로 내원한 25세 여자 환자로 단순 방사선 사진상 전완부 총 신근 건 기시부에 석회화 건염 보여 체외충격파 치료를 시행하였다. 결과: 2예 모두 치료 후 통증의 소실과 운동 범위의 완전 회복을 보였다. 결론: 주관절 외측부에 통증 및 운동 범위 제한을 유발하는 질환의 감별진단에 총 신근 건 기시부의 석회화 건염이 고려되어야 한다.

• 대한정형도수물리치료학회지
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• 제28권1호
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• pp.39-51
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• 2022

Background: The purpose of this study is to investigate the effect of neck and shoulder self-stretching exercise using audiovisual media on neck pain, postural alignment, and joint position error in women with chronic neck pain. Methods: The subjects included 20 women that gave consent to participate in the study voluntarily. They performed the self-stretching exercises using audiovisual media was carried out 20 minutes 5 times a week during 3 weeks. Neck disability index (NDI) and visual analogue scale (VAS) were used to measure the functional disability and pain, A pressure pain threshold was measured using an algometer, and a cervical range of motion (CROM) measurement tool was used to measure the range of motion and error of proprioceptive position sense of the cervical spine. To assess posture alignment, forward head angle (FHA), forward shoulder angle (FSA) were measured using image J software. Results: The neck pain intensity was statistically significantly within group (p<.05). Neck and shoulder functional disability were a statistically significant difference within group (p<.05). Splenius capitis and upper trapezius pressure pain threshold were statistically significant difference in within group (p<.05). The postural alignment was statistically significantly within group (p<.05). The cervical range of motion in neck extension, right and left lateral flexion were statistically significantly within group (p<.05). The joint position error in neck flexion, extension, right and left lateral flexion decreased statistically significantly within group (p<.05). Conclusion: Self-stretching exercise using audiovisual media increased the mobility of the neck, decreased neck pain and joint position error, and improved posture alignment. As a result, there was a positive effect by applying the self-stretching exercise using audiovisual media to people with neck pain. Based on this, it is thought that it can be used as the basis for research related to home training programs for healthy self-management.

• 보건의료생명과학 논문지
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• 제11권1호
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• pp.149-153
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• 2023

본 연구는 승마 기구 운동이 인체의 유연성에 미치는 영향을 알아보기 위하여 20세 이상이 성인 20명을 대상으로 8주간 승마 기구 운동을 시행하였다. 실험 결과 허리 관절운동범위는 굴곡-신전 범위가 실험 전 평균 120.2°에서 평균 132.5°로 증가하였으며 측방굴곡 범위는 평균 65.8°에서 평균 67.3°로 증가, 연성 측정검사(Sit and reach Test)에서 실험 전 2.94mm에서 4.97mm로 증가하였다. 허리의 굴곡과 신전 시 관절의 가동범위가 증가함을 알 수 있었으며, 측방굴곡의 범위도 증가함에 따라 인체의 유연성이 증가되었음을 알 수 있었다. 이를 확인하기 위해 유연성 검사를 진행 결과 승마 기구 운동이 인체에 허리 통증을 예방하고 유연성을 증가시키는 하나의 물리치료적 중재 방안이라고 생각하며, 요통과 같은 질환자뿐만 아니라 건강한 일반인에게도 건강증진 차원에서 활용할 수 있는 방안이라고 제시하고자 한다.

• 문화기술의 융합
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• 제5권3호
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• pp.241-249
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• 2019

본 연구의 목적은 경부스트레칭프로그램이 스마트폰을 과다 사용으로 발생하는 경부통증, 피로, 관절운동범위에 미치는 효과를 평가하기 위함이다. 스마트폰을 과다 사용하는 간호대학생 실험군(n=25), 대조군(n=27)을 대상으로 경부스트레칭프로그램 적용 전 후 경부통증, 피로, 관절운동범위의 정도를 측정하였다. 대상자의 일반적인 특성과 경부통증, 피로, 관절운동범위는 기술통계와 추론통계를 사용하여 분석하였다. 경부통증, 피로, 관절운동범위에 대한 경부스트레칭프로그램의 효과는 독립 t 검정으로 분석하였다. 분석 결과, 대상자에게 경부스트레칭프로그램 적용 후 경부통증(t=2.86, p=.006), 피로(t=5.44, p<.001). 굴곡((t=-2.10, p=.041), 신전(t=-2.84, p=.006), 오른쪽 측방굴곡(t=-2.4, p=.047) 왼쪽 측방의 굴곡(t=-2.05, p=0.46)) 및 오른쪽 회전 범위(t=-4.48, p<.001), 왼쪽 회전범위(t=-3.38, p=.001)가 개선되었다. 이 연구의 결과는 경부스트레칭프로그램이 스마트폰 사용에 따른 근골격계 장애에 건강 문제에 대한 효과적인 중재로 사용될 수 있다는 것을 보여준다.