Schenk T
Köckritz Schenk Zick Engineering Office Ltd., Berlin, Germany.
Cent Eur J Public Health. 1995;3 Suppl:73-7.
This contribution presents the results of fundamental investigations of the suitability of measurements of vibration sensitivity threshold (pallesthesiometry) as a method for the assessment of vibration-induced nerve impairments. Sinusoidal vibration stimuli are applied at the fingertips of the subjects in this method. The sensitivity threshold of the subjects is determined similar like the hearing threshold in audiometry and is used as a measure for possibly existing nerve disorders. Laboratory and field experiments were carried out by means of a simple to serve and inexpensive pallesthesiometer. The test results proved the suitability of the pallesthesiometry for screening purposes in principle. Concentration and cooperation of the subjects as well as the suitable selection of the investigation frequencies according to the frequency content of the vibration exposure are of essential meaning for comparable and reliable measuring results. Furthermore the rest and vibration-free position of the hand and fingers during the measurement of the thresholds are important to avoid measurement falsifications. A most extensive standardization of the investigation methodology and of the measuring equipment as well as the establishment of normative values of the sensitivity thresholds for different age groups are necessary for a broad application of the pallesthesiometry in practice.
本论文介绍了关于振动敏感度阈值测量（振动觉测量法）作为评估振动引起的神经损伤方法的适用性的基础研究结果。在该方法中，正弦振动刺激施加于受试者的指尖。受试者的敏感度阈值的确定方式类似于听力测定中的听力阈值，并用作可能存在的神经紊乱的度量。通过一种易于操作且价格低廉的振动觉测量仪进行了实验室和现场实验。测试结果原则上证明了振动觉测量法适用于筛查目的。受试者的专注度与配合度，以及根据振动暴露的频率成分对研究频率进行合适的选择，对于获得可比且可靠的测量结果至关重要。此外，在阈值测量期间手和手指的静止且无振动的位置对于避免测量结果失真很重要。为了使振动觉测量法在实际中得到广泛应用，需要对研究方法和测量设备进行最广泛的标准化，以及为不同年龄组建立敏感度阈值的规范值。
