2024-03-29T14:20:24Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00014148
2023-11-16T06:23:03Z
499:508:509:1376
HAND-ARM VIBRATION EXPOSURE AND THE DEVELOPMENT OF VFFIRATION SYNDROME
MIYASHITA, KAZUHISA
98981
MIYAMOTO, KUNIHIKO
98982
KURODA, MOTOTSUGU
98983
TAKEDA, SHINTARO
98984
IWATA, HIROTOSHI
98985
Hand-arm vibration
Vibration syndrome
Raynaud's phenomenon
Dose-response relationship
1994-05
To evaluate the circulatory disturbances, sensory disturbances and damage to muscles and joints by chain saw vibration exposure, the process of the deterioration of the symptoms with chain saw operating time was studied. Subjects were classified into eight groups according to TOT (Total Operating Time): Group 0,46 controls; Group A, 39 operators (<2,000 hours); Group B, 53 operators (2,000-4,000 hours); Group C, 45 operators (4,000-6,000 hours); Group D, 29 operators (6,000- 8,000 hours); Group E, 31 operators (8,000-10,000 hours); Group F, 35 operators (10,000-15,000 hours); and Group G, 34 operators (> 15,000 hours). The subjective symptoms and clinical findings due to operating chain saws were divided into three main categories of peripheral circulatory disturbances, sensory disturbances and damage to muscles and joints. According to the criteria, the total score of each disturbance was calculated per individual in Group 0 and Groups A through G, respectively. The scores for the three (circulatory, sensory, muscles and joints) disturbances increased significantly with the increase of TOT. The scores for circulatory disturbances increased significantly in Group A and B, as compared with those in its previous Group, respectively. The scores for sensory disturbances increased significantly in Groups A, B and F. The scores for damage to muscles and joints increased significantly in Group B.
departmental bulletin paper
Nagoya University School of Medicine
1994-05
Nagoya Journal of Medical Science
suppl
57
43
48
2186-3326
0027-7622
eng
http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/57suppl/57suppl.html