• Journal of the Korea Safety Management & Science
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• v.18 no.1
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• pp.119-129
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• 2016

This study analyzed symptoms of MSDs(Musculokeletal Disorders) associated with characteristics of smartphone usage based on questionnaire survey. This study also tried to identify their relationship based on the results from questionnaire survey. A total of 943 subjects participated for the survey. The results in terms of symptoms associated with smartphone usage were as follows; 1) 49.8% of respondents experienced symptoms associated with MSDs, 2) 35.9%, 34.0%, 22.1%, 21.7% and 20.9% of respondents had symptoms at shoulder, neck, elbow, wrist, and fingers respectively, 3) The effect of 'daily time of data use', 'monthly costs' for MSDs of respondents was significant. Specifically, this study has some significance since it tries to identify the relationship between MSDs symptoms and characteristics of smartphone usage. The results of the study can be good basis for better design and user guidelines of smartphone to prevent MSDs associated with smartphone usage.

• Clinics in Shoulder and Elbow
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• v.8 no.2
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• pp.81-87
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• 2005

Epicondylitis, as a tendinopathy characterized by fibroblast and microvascular hyperplasia, is a common musculoskeletal problem especially related with repetitive hand and wrist motion. It has a prevalence of between 0.2% and 5% in general population depending on the amount of exposure to manual labor jobs. Although it is known that the pathological lesions lie in the flexor or extensor common tendons, there could be collateral ligament lesions and/or reactive synovitis accompanied, which may make a case unresponsive to the treatment aimed only at the tendinopathy. Epicondylitis is easy to diagnose with typical pain, tenderness, and positive provocation tests. However, many conditions can mimic epicondylitis that further imaging or electrodiagnostic studies should be undertaken to exclude other possible problems. Ultrasonography provides information about the existence and extent of tendinopathy with relatively high specificity. Magnetic resonance imaging is often required to rule out other problems and confirm the diagnosis of the cases intractable to long term treatment. Many options of treatment are available for epicondylitis while numerous conflicting evidences have been noted, debating one treatment method is better than the others. Since it was reported that over 80% of epicondylitis improved within a year no matter what was done as treatment, it is a challenge to make accurate diagnosis and combine effective therapeutic regimens for the 20% of intractable cases.

• Journal of the Korean Society for Precision Engineering
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• v.29 no.9
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• pp.1035-1040
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• 2012

Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has been found to be effective treatment of Parkinson's disease (PD). This study aims to evaluate the effect of DBS for rigidity during DBS surgery. Six Parkinsonian patients who received STN-DBS surgery participated in this study. The examiner imposed flexion and extension of a patient's wrist randomly. Resistance to passive movement was quantified by viscoelastic properties (two damping constants for each of flexion and extension phase and one spring constant throughout both phases). All Viscoelastic constants decreased by DBS (p<0.01). Specifically, reduction in damping constant during flexion ($B_f$) was greater than those of damping constant during extension ($B_e$) and of spring constant (p<0.05). $B_f$ would be appropriate for evaluation of effect of DBS for rigidity during DBS surgery.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.3
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• pp.311-322
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• 2014

This study was conducted to assess the impact of work-related musculoskeletal disorders (WMSDs) on health related quality of life (QoL) in the firefighter under the recent IT environment. The data were collected by face to face interview using a structured questionnaire in the 366 respondents. WMSDs symptoms were measured by a self-assessed questionnaire on symptom table of NIOSH and health-related QoL was measured by SF-36. The prevalence of WMSDs was 38.0% in upper limbs, 35.5% in the low back, 21.6% in lower limbs, and 59.3% in two or more parts of the body. Subjects with symptoms of WMSDs had significantly lower scores in 7 dimensions of QoL except 'emotional role limitation' than those without symptoms of WMSDs at the area of upper extremities (neck, shoulder, arm/wrist, and hand/wrist/fingers). On the other hand, subjects with symptoms of WMSDs had significantly lower scores on all QoL dimensions than those without symptoms of WMSDs at the area of lower back or lower extremities. These results suggest that WMSDs had a negative effect on QoL. Therefore, prevention of WMSDs should be considered intervention strategies for improvement of QoL, especially in firefighters.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.9
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• pp.3999-4008
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• 2012

This study investigated the symptoms of work-related musculoskeletal disorder(WMSDs) for physical therapists who have different work duties. We analyzed the symptoms in the musculoskeletal system and the degree of work-harmfulness by the survey of the symptom in the musculoskeletal system and rapid upper limb assessment(RULA) for pain control group(n=56), adult exercise group(n=53), and pediatric exercise group(n=22). As a result, 69.6% of the pain control group, 84.9% of the adult exercise group, 81.8% of the pediatric exercise group show the observable symptom. The adult exercise group has the biggest work load per hour in the final wrist & arm score of the ergonomic risk assessment using RULA. The action level of the pain control group is $3.0{\pm}0.9$; the Action Level of adult exercise group is $3.3{\pm}0.6$; the Action Level of the pediatric exercise group is $3.2{\pm}0.8$, and so it is shown that the adult exercise group has a problem of working posture. It is considered that devices and education system for preventing from WMSDs should come into wide use.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.484-492
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• 2017

This study assessed female occupational therapist job stress and musculoskeletal pain, and examines the problems caused by sexual harassment, family, and marriage policy. The results provide information to improve work environments, reduce job stress, yield data needed for sexual harassment prevention education, examine women occupational therapists' economic activities, and broadly improve the quality of life through participation. The study subjects were currently employed female occupational therapists. Initially 200 subjects were recruited, of whom 185 returned the study questionnaire. Questions addressing job stress included, 'There are times when one feels that the salary is worth less than the job effort', 'Feel tired due to work.', 'That it is time to pay attention to other therapy.', answered positively in that order. Musculoskeletal pain in the wrist and hand (90%), shoulder (86%), neck (69.7%) and waist (68.6%) were the order of the wrist and hand (63%), shoulder (62.2%) and waist (51.9%) pain resulted in interference with daily life. Verbal harassment was reported by 71.4% and 48.6% reported physical and visual harassment. The most common topics in workplace relations were 'Must choose whether to focus on the individual or work (61.1%).', 'Need for understanding and someone who can share their feelings (54.6%).', and 'Colleagues are willing to listen to my story (73%)'.

• Journal of Korea Entertainment Industry Association
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• v.13 no.4
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• pp.321-329
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• 2019

This study aimed to investigate the effect of virtual reality training focus on ADL on upper extremity function and activities of daily living in stroke patients. 20 patients with chronic stroke were included in this study. The participants were divided into the experimental (n=10) or control (n=10) groups. Both groups received conventional rehabilitation therapy for 30 min a day, 5 times per week for 4 weeks. The experimental group also performed virtual reality training focus on ADL for 30 min a day, and the control group performed general virtual reality training for 30 min a day. The Fugl-Meyer Assessment (FMA) and Functional Independence Measure (FIM) scores were evaluated before and after the intervention, and both groups showed significant improvement (p<.05). Compared to the control group, the experimental group showed significant improvement in the FMA wrist score and the FIM total, self-care, and sphincter control scores (p<.05). These findings suggest that virtual reality training focus on ADL may have a positive effect on wrist function and overall ADLs compared to that using general virtual reality training in stroke patients.

• Horticultural Science & Technology
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• v.30 no.4
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• pp.449-462
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• 2012

The objectives of this study were to measure the range of motion for joints and muscle activation of upper limb for flower arrangement tasks for physical rehabilitation and to test horticultural therapy programs using flower arrangement tasks for improving upper limb function of the patients with stroke. Major flower arrangement tasks were classified with eight tasks (cutting 1, thick stem; cutting 2, thin stem; fixing 1, long stem; fixing 2, short stem; rolling a leaf; bending 1, thick stem; bending 2, thin stem; and winding, using a wire) based on the occupational analysis. When eight male university students (mean age $24.1{\pm}2.5$ years) conducted the eight flower arrangement tasks, range of motion for joints and muscle activation of upper limb were measured by a 3D motion analyzer and electromyography, respectively. Based on the results of the range of motion and muscle activation of upper limb, horticultural therapy programs using flower arrangement tasks (total 33 sessions) for improving upper limb function of the patients with stroke was conducted at a rehabilitation hospital, Seoul, South Korea and then the range of motion, grip strength, and upper limb function of the patients were tested. Among the eight flower arrangement tasks, cutting 1, winding, and bending 1 induced the highest value for the range of motion in joints of shoulder, elbow, and wrist, respectively (P < 0.001). In terms of muscle activation, eight flower arrangement tasks performed in this study showed various patterns of muscle activation and several muscles were simultaneously used for each task (P < 0.001). In addition, thickness and length of the materials used in a task had a prominent effect on the range of motion for joints and muscle activation of upper limb (P < 0.001). The stroke patients had positive effects for their range of motion of upper limb (shoulder, forearm, and elbow), grip strength, and overall upper limb function through the horticultural therapy program. Thus, this study suggested that flower arrangement tasks would be a potential horticultural activity for physical rehabilitation program. It would be interesting to apply a customized horticultural therapy program using flower arrangement tasks according to the symptoms of patient for physical rehabilitation.

• Therapeutic Science for Rehabilitation
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• v.2 no.2
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• pp.61-66
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• 2013

Objective : The purpose of this study was to analysis of disparity between bilateral hand movement when performing activity of daily living using accelerometer. Methods : The subjects of this study included 6 healthy adults. The assessment tool used Jebsen Hand Function Test and accelerometer. The subjects performed 7 sub-tests after wearing accelerometer around wrist. Results : Among sub-tests, writing was the only significantly correlated with difference between dominant and non-dominant hand(t=-2.394, p<.05). Further, non-dominant hand (M=2476.2, SD=802.2) showed more movement than dominant hand(M=1456.2, SD=667.6). Conclusion : This results indicated that accelerometer is useful tool for assessment of bilateral hand movement. Considering demographic characteristics, various subject group, further study is needed.

• Journal of Acupuncture Research
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• v.30 no.5
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• pp.203-209
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• 2013

Objectives : The purpose of this study is to report the clinical effects of Korean medical treatment for Kienb$\ddot{o}$ck's disease. Methods : The patient was treated using acupuncture, electroacupuncture, herbal medicine, pharmacopuncture treatment, and other treatments including moxibustion, physical rehabilitation for 6 weeks. And we evaluated the patient through verbal rating scale(VRS), disability of the arm, shoulder and hand(DASH), range of motion(ROM). Results : After treatment, VRS is changed from 7 to 3, DASH is changed from 37.93 to 20.69. And ROM is changed from $60^{\circ}$ to $70^{\circ}$ in wrist flexion, and from $10^{\circ}$ to $15^{\circ}$ in radial deviation. Conclusion : These results suggest that Korean medical treatment is effective to the patient complaining pain and dysfunction.