Annals of Occupational and Environmental Medicine

Si Bog Park

4 Articles

The Prevalence of Playing-Related Musculoskeletal Disorders of Music College Freshmen Playing String Instruments: Jaewoo Koh, Soo jin Lee, Yong Kyu Kim, Inah Kim, Soon Chan Kwon, Si Bog Park, Mi Jung Kim, Seongwoo Kim, Kyoungok Park, Hyunmi Kim, Jaegwang Song, Jaechul Song; Korean Journal of Occupational and Environmental Medicine 2006;18(3):189-198. Published online September 30, 2006; DOI: https://doi.org/10.35371/kjoem.2006.18.3.189

OBJECTIVES
This study was conducted to investigate the prevalence of playing-related musculoskeletal disorders (PRMDs) of some music college freshmen majoring in string instruments.
METHODS
The study subjects were 199 freshmen majoring in strings at three colleges in Seoul and surrounds. The symptom prevalence and related factors of PRMDs were surveyed with a self-administered questionnaire. The Southampton Protocol was used to diagnose PRMDs.
RESULTS
The freshmen had played for 9 years and 7 months on average. The symptom prevalence of PRMDs according to the modified-NIOSH surveillance criteria was 73.4%. The shoulder was the most prevalent symptom complaint site. The prevalence of PRMDs by the Southampton Protocol was 54.3% and myofascial pain syndrome was the most common. The instrument (violin or viola vs. cello or bass), regular breaks, self perceived evaluation of playing posture and regular computer use had a significant association with the symptom prevalence of PRMDs in univariate logistic regression analysis (p<0.05). The instrument, regular breaks and regular computer use were significant variables affecting the symptom prevalence of PRMDs in multivariate logistic regression analysis (p<0.05).
CONCLUSIONS
This study suggests that music college freshmen playing strings are a high risk group for musculoskeletal disorders. Therefore, the prevention of PRMDs requires the establishment of an ergonomic playing-environment, and the education of comfortable posture and stretching program such as musical warming up and physical stretching. It is especially important to form an effective treatment and rehabilitation system based on earlier diagnosis for musicians who are suffering from the PRMDs.

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Musicians' Medicine: Musculoskeletal Problems in String Players
Han-Sung Lee, Ho Youn Park, Jun O Yoon, Jin Sam Kim, Jae Myeung Chun, Iman W. Aminata, Won-Joon Cho, In-Ho Jeon
Clinics in Orthopedic Surgery.2013; 5(3): 155. CrossRef
The Prevalence of Playing-related Musculoskeletal Disorders of Traditional Korean Musical Instrument Player
Jung Yong Kim, Seung Nam Min, Young Jin Cho, Jun Hyeok Choi
Journal of the Ergonomics Society of Korea.2012; 31(6): 749. CrossRef

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Analysis of Shoulder Range of Motion in Shoulder Myofascial Pain Syndrome: Jeong Soo Kim, In Ah Kim, Soo Jin Lee, Yong Kyu Kim, Si Bog Park, Jae Woo Koh, Jaechul Song; Korean Journal of Occupational and Environmental Medicine 2005;17(4):333-342. Published online December 31, 2005; DOI: https://doi.org/10.35371/kjoem.2005.17.4.333

Abstract PDF: OBJECTIVE: This study was carried out to investigate if the measurement of range of motion(ROM) could be applied in the diagnosis of Myofascial Pain Syndrome(MPS) and to determine the severity by analyzing ROM in MPS patients.
METHODS
The study subjects were 476 female telephone number information service workers. Southampton Protocol and Pittsburgh Protocol were used to diagnose MPS and to measure ROM. ROMs were measured by 2 inclinometers exercising each shoulder passively and actively in 5 directions ; abduction, forward flexion, extension, external rotation, and internal rotation.
RESULTS
Compared to the normal group (n=147), the mean of right side ROM in the subjects (n=270) with same side MPS was 2.1 degrees(SD=11.5) lesser in active extension and 1.7 degrees(SD=10.4) lesser in passive extension. Compared to the mild group (n=210), the mean of right side ROM in the patients with same side severe MPS (n=58) was lesser in all directions. Especially in active forward flexion, passive forward flexion, active extension, passive extension and active external rotation, ROM in the subjects with severe MPS was lesser by 6.5 degrees(SD=13.1), 5.1 degrees(SD=12.8), 5.9 degrees(SD=11.8), 5.0 degrees(SD=10.6) and 3.9 degrees(SD=9.8), respectively, than those of the subjects with mild MPS. Compared to the subjects with left side mild MPS(n=172), ROM in the subjects with left side severe MPS (n=59) was 5.3 degrees(SD=13.3) lesser in active forward flexion.
CONCLUSIONS
In this study, ROMs in the subjects with severe MPS tended to be lesser than those in mild patients. This tendency was more prominent in the right side than the left, active range of motion than passive and forward flexion and extension than others. The results of this study are expected to help diagnose shoulder MPS and determine severity.

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The Prevalence of Cumulative Trauma Disorders of Upper Extremities Among Watch Assembly Workers in some Small-scaled Industr: Eun Chul Jang, Hyun Ju Kim, Young Jun Kwon, Si Bog Park, Soo Jin Lee, Jae Cheol Song; Korean Journal of Occupational and Environmental Medicine 2000;12(4):457-472. Published online December 31, 2000; DOI: https://doi.org/10.35371/kjoem.2000.12.4.457

Abstract PDF

Objectives
The prevalence of cumulative trauma disorders of upper extremities mons watch assembly workers in small-scaled industry was studied.
Methods
In 83 workers at five watch assembly factories, symptoms and psychosocial questionnaire, ergonomic Interview, physical examination were conducted.
Results
Prevalence of self-reported symptoms was 54.2% and neck 34.9%, wrist/hand 31.3%, shoulder 30.1%, elbow/arm 18.0% by anatomical site. Prevalence of cumulative trauma disorders was 45.8%. Most common disease was myofascial pain syndrome (31.3%). The other diseases were De Quervain disease (9.6%), tenosynovitis/tendinitis at wrist/hand (9.6%), bicipital tendinitis(6.0%), fat. epicondylitis(4.8%), meIn. epicondylitis(2.4%), and cervical disc disease(2.4%). As result of ergonomic interview, repetitiveness was 79(98.8%). There were no differences in the prevalence of self-reported symptoms and cumulative trauma disorders for age, sex, marital status, duration of work In the study, The significant factors of cumulative trauma disorders were occupational task and psychosocial stress in the study. The prevalence of cumulative trauma disorders in high strain group was hlgher (68.4%) than other three groups. The prevalence of self-reported symptoms and cumulative trauma disorders in assembly task was higher (70.0%, 64.0%) than other two tasks.
Conclusions
Prevalence of self-reported symptoms was 54.2%, prevalence of cumulative trauma disorders was 45.8% in watch assembly workers. In this study, factor related to self-reported symptoms was occupational task and factors relaxed to cumulative trauma disorders were occupational task and psychosocial stress. This results suggest that differences of ergonomics and environment in occupational task cause differences of prevalence of self-reported symptoms and cumulatlve trauma disorders.

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Associations between Job Stress and Work-related Musculoskeletal Symptoms in Street Sanitation Workers
Hye-Jin Kim, Kyung-Ja June, Gyeyoung Shin, Jina Choo
Journal of Korean Academy of Community Health Nursing.2013; 24(3): 314. CrossRef
Relationship between occupational stress and musculoskeletal symptoms of upper extremities among dental hygienists
So-Young Lee, Hyo-Jin Ko, Byeng-Chul Yu
Journal of Korean society of Dental Hygiene.2012; 12(5): 897. CrossRef

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6 Cases of Hand Arm Vibration Syndrome in Grinding Workers Exposed to Hand-arm Vibration: Shang Hyuk Yim, Rokho Kim, Gil Seung Yang, Jung In Yang, Sang Sup Kim, Hyoung Joon Chun, Si Bog Park; Korean Journal of Occupational and Environmental Medicine 2000;12(3):421-429. Published online September 30, 2000; DOI: https://doi.org/10.35371/kjoem.2000.12.3.421

Abstract PDF

OBJECTIVES
To confirm the HAVS in workers exposed to hand-arm vibration with using the objective diagnostic methods METHODS: Several tests were used to help substantiate a clinical diagnosis of HAVS. Some other diseases were excluded by a medical interview, hematologic assessment, urinalysis, X-rays. The hand-arm vibration acceleration level of the grinder was evaluated for considering HAVS. Peripheral vascular changes were examined by a cold provocation test. An electromyography was implemented to ascertain the peripheral neural changes.
RESULTS
8 workers with symptoms in hands & fingers, exposed to hand-arm vibration were examined. Some other diseases(primary Raynauds disease, secondary Raynauds disease in not occupational origin) were excluded by a medical interview, hematologic assessment, urinalysis, X-rays. The hand-arm vibration acceleration level of the grinder was 7. 9 m/sec2. The recovery time of a skin temperature followed finger cooling was significantly prolonged in 6 workers with HAVS. The nerve conduction velocity was reduced in 6 workers with HAVS.
CONCLUSIONS
So we report 6 cases of HAVS in grinding workers exposed to hand-arm vibration diagnosed objectively by an exclusion of some other disease, handarm vibration acceleration level, cold provocation test, electromyography.

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Severity of grinder injuries and related factors compared with other high-rotation cutting tool injuries: a multicenter retrospective study from 2011 to 2018
Juni Song, Yang Bin Jeon, Jae Ho Jang, Jin Seong Cho, Jae Yeon Choi, Woo Sung Choi
Journal of Trauma and Injury.2023; 36(1): 32. CrossRef
The Health Effect of Hand Arm Transmitted Vibration
Jung-Wan Koo
Journal of the Ergonomics Society of Korea.2013; 32(4): 303. CrossRef
Occupational Diseases in Korea
Seong-Kyu Kang, Eun A Kim
Journal of Korean Medical Science.2010; 25(Suppl): S4. CrossRef

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