• Journal of the Korean Society of Physical Medicine
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• v.12 no.1
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• pp.61-66
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• 2017

PURPOSE: The purpose of this study was to investigate the effects of isometric upper limb contraction on the trunk and lower extremity muscles during the sit-to-stand activity in elderly females. METHODS: Eighteen healthy elderly females performed three directional isometric upper extremity contractions (flexion, extension, and horizontal abduction movements) using an elastic band during sit-to-stand activity. Electromyography signals were collected from the internal oblique, erector spinae, rectus femoris, and biceps femoris muscles. RESULTS: Internal oblique activity was greater in bilateral shoulder flexion and bilateral shoulder horizontal abduction than in neutral position (p<.05). Erector spinae and rectus femoris muscle activities in bilateral shoulder flexion was greater than in neutral position and bilateral shoulder extension (p<.05). Biceps femoris activity was significantly greater in bilateral shoulder flexion than in bilateral shoulder extension and horizontal abduction, and in neutral position compared to bilateral shoulder extension (p<.05). CONCLUSION: These results suggest that incorporating isometric upper limb contraction may be beneficial for enhancing the contribution of trunk and lower extremity muscle activities to trunk stabilization during sit-to-stand activity. Therefore, isometric upper limb contraction during sit-to-stand tasks, especially in flexion, may be used to elicit contraction of the lumbopelvic region muscles within a tolerable range, for developing endurance and strength in the elderly.

• Clinics in Shoulder and Elbow
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• v.8 no.1
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• pp.5-8
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• 2005

Rotator interval should be as loose as possible, though not so loose as to break the shoulder mechanism. This region is a source of significant shoulder pathology resulting in patient discomfort and dysfunction. The clinical features fall into two categories. Rotator interval tightness is associated with impingement, contracture with adhesive capsulitis, and widening with anteroinferior, posterior or multidirectional instability. Coracoid impingement can cause damage to the structures of the rotator interval, Injury of the interval are associated with subscapularis tears as well as biceps tendinitis, fraying, subluxation, and dislocation. An understanding of the normal and pathologic anatomy can lead to successful diagnosis and treatment of lesions in the rotator interval.

• The Journal of Korean Academy of Prosthodontics
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• v.35 no.4
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• pp.742-766
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• 1997

The purpose of this study was to determine the effect of finish line design, amount of incisal reduction, and loading condition on the stress distribution in anterior all-ceramic crowns. Three-dimensional finite element models of an incisor all-ceramic crown with 3 different finish line designs : 1) shoulder with sharp line angle 2) shoulder with rounded line angle 3) chamfer : and 2 different incisal reductions : 2mm and 4mm were developed. 300 N force with the direction of 45 degree to the long axis of the tooth was applied at 3 different positions : A) incisal 1/3, B) incisal edge, C) cervical 1/5. Stresses developed in ceramic and cement were analyzed using three-dimensional finite element method. The results were as follows : 1. Stresses were concentrated in the margin region, which were primarily compressive in the labial and tensile in the lingual. 2. Stresses were larger in the area near line angle than on the crown surface of the margin region. In case of shoulder with sharp line angle, stresses were highly concentrated in the porcelain near line angle. 3. At the interface between porcelain and cement and at the porcelain above the margin on crown surface, stresses were the highest in chamfer, and decreased in shoulder with sharp line angle and shoulder with rounded line angle, respectively. 4. At the interface between cement and abutment on crown surface, stresses were the highest in shoulder with sharp line angle, and decreased in shoulder with rounded line angle and chamfer, respectively. 5. The amount of incisal reduction had little influence on the stress distribution in all-ceramic crowns. 6. When load was applied at the incisal edge, higher stresses were developed in the margin region and the incisal edge than under the other loading conditions. 7. When load was applied at the cervical 1/5, stresses were very low as a whole.

• The Journal of Korean Society for Radiation Therapy
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• v.26 no.1
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• pp.99-105
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• 2014

Purpose : We compared the set-up accuracy and right-left Shoulder position variation of the manufactured device and other commercial shoulder-retractors in the head and neck radiation treatment. Materials and Methods : Six patients consist of three groups which were used three different Shoulder retractors. We measured position corrections of left and right Shoulder and the couch after the image guidance by using on board imager (OBI) for six head and neck patients who has the extended target to the neck node lower region. Results : The position variation correction of left (right) Shoulder after image guidance were $1.07{\pm}3.99mm$ ($-4.35{\pm}2.09mm$), $-0.37{\pm}5.91mm$ ($1.26{\pm}5.28mm$), $-0.63{\pm}2.44mm$ ($0.25{\pm}1.61mm$) for group A, B and C. The vertical, lateral, longitudinal position and angular corrections of the couch after image guidance were $-2.06{\pm}2.68$, $-1.11{\pm}8.15$, $0.34{\pm}3.78mm$, and $0.51{\pm}0.77$ degree for group A, $-1.18{\pm}1.82$, $-0.94{\pm}2.13$, $-0.67{\pm}1.98mm$, and $0.91{\pm}1.04$ degree for group B and $0.12{\pm}2.18$, $-0.79{\pm}2.64$, $0.79{\pm}2.64$, and $0.00{\pm}0.49$ degree for group C. Conclusion : In this preliminary study, we found the positioning accuracy of the manufactured Shoulder retractor is comparable to other commercial Shoulder retractors. We expect that the reproducibility and accuracy of the patient set-up could be improved by using the home made Shoulder retractor in the head and neck radiation treatment.

• The Journal of the Korea Contents Association
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• v.9 no.9
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• pp.249-258
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• 2009

The purpose of this study is to identify the factors influencing the musculoskeletal discomfort and the physical region related symptoms. The outcome of the study uses KOSHA Code H-30-2003 which defines possible symptoms into different categories. Symptom I, ll showing the highest occurrence rate in shoulder and neck regions and most of Symptom III, IV come from back region. Analysis of the factors influencing the musculoskeletal discomfort vary in different parts of the body. In the neck region, the discomfort related to rest and the computer keyboard. Gender affects the magnitude of pain in the shoulder region. Wrist pain is related to the chairs being used and back discomfort is influenced by shoulder exercise and the degree of rest taken. Physical fatigue due to work affects all the regions mentioned above. Conclusively, office workers are prone to the musculoskeletal discomfort due to their work environment. To alleviate this problem, the workers need to be educated with proper long-term musculoskeletal related health programs and exercise program containing various stretching methods. In addition, the effort to improve the variables in this study would help to reduce the rate of musculoskeletal discomfort.

• The Journal of Korean Physical Therapy
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• v.13 no.3
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• pp.821-828
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• 2001

Muscle imbalance describes the situation in which some muscles become inhibited and weak, which others become tight, losing their extensibility. Muscle imbalance develops mainly between tightness and inhibition. Although muscle imbalance involves the whole body, the imbalance is more evident or starts to develop gradually and predictably in the pelvic region, where we speak about the pelvic or distal crossed syndrome, and the shoulder girdle. neck region, associated with a proximal or shoulder girdle crossed syndrome. Evaluation of muscle imbalance in a patient can be from location of the line of gravity in relation to the trunk.

• The Korean Journal of Pain
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• v.21 no.1
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• pp.57-61
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• 2008

Background: Shoulder joint injection is currently performed under fluoroscopic or computed tomography scan guidance. We performed this study to determine if an ultrasound guided shoulder joint injection through rotator cuff interval would have clinical usefulness. Methods: A total of 17 volunteers [12 women, 5 men; mean age 28 yr (23-32 yr)] received shoulder joint injection under multilinear ultrasound (5-10 MHz). Volunteers were positioned supinely on a table with their arm in a neutral position. The anterior shoulder region of the patient was sterilized using povidone iodine. A 24 gauge needle was introduced and directly visualized in real time as it passed obliquely from the skin surface to the inferior space of the biceps tendon. If there was little or no resistance to the injection, a contrast media (omnipaque) was injected and checked fluoroscopically. Results: Ultrasound guided shoulder joint injection through rotator cuff interval was successful in all cases. The average time taken for the procedure was $27.5{\pm}16.5sec$. The vertical distance from skin to the inferior space of the biceps tendon was $1.6{\pm}0.4cm$ and the distance of needle from the skin to the inferior space of biceps tendon was $2.8{\pm}0.6cm$. The procedure was well tolerated by all volunteers. Conclusions: Ultrasound guided shoulder joint injection through rotator cuff interval is an effective, rapid, and easy-to-perform injection technique. Ultrasound guided injection enables exact needle placement and avoids the use of both ionizing radiation and iodinated contrast material.

• Physical Therapy Korea
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• v.24 no.3
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• pp.30-39
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• 2017

Background: Scapular posterior tilt (SPT) is important in the prevention of abnormal scapular movement and pain during elevation of the arm. However, previous studies have overlooked increased upper trapezius (UT) muscle activity interrupting the normal force couple of scapular motion and compensation of levator scapulae (LS) muscle activated simultaneously with UT during SPT exercise. Objects: The purpose of this study was to compare the effects of modified SPT with depression exercise versus SPT exercise on serratus anterior (SA), lower trapezius (LT), UT, and LS muscle activities and the clavicular tilt angle, in subjects with rounded shoulder posture (RSP) and myofascial pain in the UT muscle region. Methods: Eighteen subjects with RSP were recruited and randomly allocated to 2 groups; 9 in the SPT group and 9 in the SPT with depression group. All subjects met the specific RSP criteria and had myofascial pain of UT region. Depending on the allocated group, subjects performed the assigned SPT exercise and EMG data were recorded during the each exercise. Clavicular tilt angle was defined as the angle between the line joining the medial and lateral end of the clavicle and a horizontal line. Results: The SA muscle activity was significantly greater in SPT with depression than with SPT exercise (p<.05). The UT, LS muscle activity and the clavicular tilt angle was significantly lower in SPT with depression than with SPT exercise (p<.05). Conclusion: These findings were insightful because the potential risk of pain from overactivation of the UT and LS was considered, in contrast with SPT exercise. SPT with depression exercise can be implemented as an effective method to facilitate scapular muscle activity for stability and to prevent myofascial pain in the neck and shoulder.

• The Journal of the Korean bone and joint tumor society
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• v.15 no.2
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• pp.151-154
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• 2009

Bronchogenic cyst is rare lesion that arises from maldevelopment of the primitive foregut, and is usually found in the lung and mediastinum. Cutaneous or subcutaneous bronchogenic cyst is rare and occur unusually in the shoulder region. We report here a case of 20-month-old boy with a bronchogenic cyst on his left shoulder region. He underwent incisional biopsy and curettage for a tender cystic mass at a department of dermatology, diagnosed as a epidermal inculsion cyst. But, additional cystic mass was palpated during wound care. MRI showed a well-defined subcutaneous cystic mass. The excised cyst was lined with pseudostratified ciliated columnar epithelium with occasional goblet cells and diagnosed as a bronchogenic cyst.

• Journal of Haehwa Medicine
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• v.15 no.1
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• pp.59-69
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• 2006

Objectives & Methods : I investigated 45 literature of Oriental and Western medicine about the treatment of pain in shoulder and arm. Result and Conclusion : 1. The etiological causes of Pain in Shoulder and Arm based on literatures of Oriental medicine are attack of wind-heat on the lung, wind cold, damp-heat struggle between the vital energy and pathogenic factor and six pathogenic factors. And all these causes are the conception of blockage syndrome, Qi and blood stagnating in meridian system. 2. The treatment of Pain in Shoulder and Arm based on Oriental medicine is mainly composed of both medical therapy for Bi syndrome due to pathogenic wind, deficiency of both Qi and blood, consumption of the liver and the spleen, and also acupuncture and moxibustion treatment by selection for acupoint. And those treatments are for treating etiology. And also there are treatments using the meridian system and Twelve Muscle Region and Ashihyeol for the purpose of treating the symptoms. 3. The etiological causes of Pain in Shoulder and Arm based on literatures of Western medicine are degenerative cut of tendon and nerve symptoms caused by tendonitis, bursitis, calcification, ruptured cervical disc and thoracic outlet syndrome. 4. The treatment of Pain in Shoulder and Arm based on Western medicine is for alleviation of pain, such as giving an anodyne, steroid products, local anesthetic injection and stretching and strengthening the muscles.