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KMID : 0361420130370050706
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Journal of Korean Academy of Rehabilitation Medicine
2013 Volume.37 No. 5 p.706 ~ p.712
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Degenerative Changes of Spine in Helicopter Pilots
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Byeon Joo-Hyeon
Kim Jung-Won
Jeong Ho-Joong
Sim Young-Joo
Kim Dong-Kyu
Choi Jong-Kyoung
Im Hyoung-June
Kim Ghi-Chan
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Abstract
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Objective: To determine the relationship between whole body vibration (WBV) induced helicopter flights and degenerative changes of the cervical and lumbar spine. Methods: We examined 186 helicopter pilots who were exposed to WBV and 94 military clerical workers at a military hospital. Questionnaires and interviews were completed for 164 of the 186 pilots (response rate, 88.2%) and 88 of the 94 clerical workers (response rate, 93.6%). Radiographic examinations of the cervical and the lumbar spines were performed after obtaining informed consent in both groups. Degenerative changes of the cervical and lumbar spines were determined using four radiographs per subject, and diagnosed by two independent, blinded radiologists. Results: There was no significant difference in general and work-related characteristics except for flight hours and frequency between helicopter pilots and clerical workers. Degenerative changes in the cervical spine were significantly more prevalent in the helicopter pilots compared with control group. In the cervical spine multivariate model, accumulated flight hours (per 100 hours) was associated with degenerative changes. And in the lumbar spine multivariate model, accumulated flight hours (per 100 hours) and age were associated with degenerative changes. Conclusion: Accumulated flight hours were associated with degenerative changes of the cervical and lumbar spines in helicopter pilots.
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KEYWORD
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Vibration, Spine, Degenerative changes, Aircraft
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