Scheffer M, Dupuis H
Institut für Arbeits- und Sozialmedizin, Johannes Gutenberg-Universität Mainz, Federal Republik of Germany.
Int Arch Occup Environ Health. 1989;61(6):375-8. doi: 10.1007/BF00381027.
Under laboratory conditions 14 healthy male subjects were exposed to hand-arm vibration (ahzw = 6.3 m/s2) at different air temperatures (5 degrees, 12 degrees, 18 degrees and 25 degrees C). Static load (grip force 15 N, push force 40 N) was kept constant. Finger tip temperature as an indirect criterion of the peripheral blood circulation was measured. As expected, low air temperatures (5 degrees, 12 degrees and 18 degrees C) cause a strong decrease of skin temperature. Under additional stress of vibration connected with static load, a further decrease of the mean skin temperature was noted. At this, static load proved to have a predominant influence on the acute diminution of skin temperature. The individual reaction to the stressors varied considerably. Field tests during practical work with a chain saw at low air temperatures showed results similar to those of the laboratory tests. The protective effect of a grip heating system could be demonstrated.
在实验室条件下，14名健康男性受试者在不同气温（5摄氏度、12摄氏度、18摄氏度和25摄氏度）下暴露于手臂振动（加速度均方根值=6.3米/秒²）。静态负荷（握力15牛，推力40牛）保持恒定。测量了作为外周血液循环间接指标的指尖温度。正如预期的那样，低气温（5摄氏度、12摄氏度和18摄氏度）会导致皮肤温度大幅下降。在与静态负荷相关的振动附加压力下，平均皮肤温度进一步下降。此时，静态负荷被证明对皮肤温度的急性降低有主要影响。个体对应激源的反应差异很大。在低温下使用链锯进行实际工作时的现场测试结果与实验室测试结果相似。握把加热系统的保护作用得到了证实。
