Study on Effects of Shoch-Type Vibration on Peripheral Circulation in the Hand-Arm

肖氏振动对手臂末梢循环影响的研究

• 批准号: 04454222
• 负责人: OKADA Akira
• 金额: $ 4.35万
• 依托单位: Kanazawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04454222/
• 关键词: Vibration; Impulsiveness; Blood flow; Peripheral circulation; Grasping; ISO; Crest factor; Pneumatic tools; 複合影響; crest factor; 未梢循環動態; 労働環境; 周波数分析

Altough deteriorating effects of shock-type vibration on hand-arm have been pointed out, the international standard for hand-arm vibration exposure have not provided available information on shock-type vibration. Waves produced by the normal use of chain-saw, pneumatic hammer, pneumatic riveting hammer, and pneumatic nailer at workplaces was recorded and analyzed. The order of the size in the impulsiveness, crest factor (CF) was chain-saw, pneumatic hammer, pneumatic riveting hammer, and pneumatic nailer at a constant frequency-weighted rms acceleration at x direction (a_<xhw>) of 6.3 m/s^2. No statistically significant effects of shock was recognized in comparisons of subjective response to shock-type vibration with that to shockless vibration of shain-saw. Effects of shock on peripheral circulation was examined by monitoring finger skin blood flow induced by the shock-type vibration at a constant frequency-weighted rms acceleration at x direction (a_<xhw>) of 6.3 m/s^2. In a result, pneumatic nailer with the CF of 9.5 produced significant decreases in the blood flow at 4 and 5 min after the exposure. This result suggests that effects of vibration should be assessed including the size of the impulsiveness. Experiments examining effects of hand-grasping showed significant reduction in peripheral blood flow associated with the grasping. Tools with measures which protect vibration from transmitting into hand-arm easily with the growth of grasping force should be developed in future.

虽然已经指出了冲击振动对手臂的影响日益恶化，但国际上关于手臂振动暴露的标准并没有提供有关冲击振动的信息。记录并分析了工作场所正常使用链锯、气锤、气铆锤、气钉机所产生的波浪。在x方向（a_<xhw>）的定频加权平均加速度为6.3 m/s^2时，冲量、峰值因子（CF）大小依次为链锯、气锤、气铆锤、气钉机。在对冲击型振动的主观反应与对锯床无冲击振动的主观反应的比较中，没有发现有统计学意义的冲击效应。以恒定频率加权x方向（a_<xhw>）加速度为6.3 m/s^2的冲击型振动诱导手指皮肤血流量，观察冲击对周围循环的影响。结果表明，CF为9.5的气动钉机在暴露后4、5 min的血流量明显减少。这一结果表明，应评估振动的影响，包括冲量的大小。研究手抓握效果的实验显示，与手抓握相关的外周血流量显著减少。今后应开发具有保护措施的工具，防止振动随着抓握力的增大而容易传递到手臂上。

项目成果

Hiroyuki Nakamura and Akira Okada: "Comparisons of responses of plasma PDGF,tPA and endothelin to hand-arm vibration exposure between healthy and VWF workers" Proceeding 6th ICCEF. (in print).

Hiroyuki Nakamura 和 Akira Okada：“健康工人和 VWF 工人血浆 PDGF、tPA 和内皮素对手臂振动暴露的反应的比较”第 6 届 ICCEF 论文集。

Hiroyuki Nakamura and Akira Okada: "Comparisons of responses of plasma PDGF,tPA and endothelin to hand-arm vibration exposure between healthy and VWF workers" Proceeding of 6th International Conference on the Combined Effects of Environmental Factors. (in

Hiroyuki Nakamura 和 Akira Okada：“健康工人和 VWF 工人血浆 PDGF、tPA 和内皮素对手臂振动暴露的反应比较”第六届环境因素综合影响国际会议论文集。

Hiroyuki Nakamura and Akira Okada: "Combined effects of hand-arm vibration and hand-grasping on local blood flow and plasma indicators" Arch.Complex Environ.Study. (in print).

Hiroyuki Nakamura 和 Akira Okada：“手臂振动和抓握对局部血流和血浆指标的综合影响”Arch.Complex Env​​iron.Study。

Masami Yoshida,Hiroyuki Nakamura and Akira Okada: "Responses of plasma platelet-derived growth factor (PDGF) and endothelin to vibration exposure in chain-sawyers" NIOH Journal. (in print).

Masami Yoshida、Hiroyuki Nakamura 和 Akira Okada：“血浆血小板衍生生长因子 (PDGF) 和内皮素对链锯机振动暴露的反应”NIOH 杂志。

Hiroyuki Nakamura and Akira Okada: "Combined effects of hand-arm vibration and hand-grasping on local blood flow and plasma indicators" Arch.Complex Environ.Study.(in print).

Hiroyuki Nakamura 和 Akira Okada：“手臂振动和抓握对局部血流和血浆指标的综合影响”Arch.Complex Env​​iron.Study。（印刷中）。