A frequency-duty cycle equation for the ACGIH hand activity level.
A frequency-duty cycle equation for the ACGIH hand activity level.
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ACGIH 手部活动水平的频率占空比方程。
DOI：
10.1080/00140139.2014.966154
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发表时间：
2015
期刊：
影响因子：
2.4
通讯作者：
Rempel,David
中科院分区：
文献类型：
--
作者：
Radwin,RobertG;Azari,DavidP;Lindstrom,MaryJ;Ulin,SherylS;Armstrong,ThomasJ;Rempel,David
在美国政府工业卫生师会议(TLV®)中，用于预测手活动水平(HAL)的新公式是基于工作频率(F)和占空比(D)。TLV®包括一个表格，用于从来自Latko等人(Latko WA，Armstrong TJ，Foulke JA，Herrin GD，Rabourn RA，Ulin SS，开发和评估用于评估手部任务中的重复性的观察方法的开发和评估)中的数据估计HAL。美国工业卫生协会杂志，58(4)：278-285,1997)和包括数据范围外推断的事后调整。多媒体视频任务分析确定了拉特科研究中两项额外工作的D，这两项工作不在原始数据集中，并建立了一个新的非线性回归方程，以更好地拟合数据，创建更准确的表格。该方程与TLV®HAL查找表基本匹配，与线性模型相比有很大改进，特别是对于F&gT；1.25 Hz和D>；60%的工作。该方程更接近于数据，并使用连续函数应用TLV®。
A new equation for predicting the hand activity level (HAL) used in the American Conference for Government Industrial Hygienists threshold limit value®(TLV®) was based on exertion frequency (F) and percentage duty cycle (D). The TLV® includes a table for estimating HAL from F and D originating from data in Latko et al.(Latko WA, Armstrong TJ, Foulke JA, Herrin GD, Rabourn RA, Ulin SS, Development and evaluation of an observational method for assessing repetition in hand tasks. American Industrial Hygiene Association Journal, 58 (4): 278–285, 1997) and post hoc adjustments that include extrapolations outside of the data range. Multimedia video task analysis determined D for two additional jobs from Latko's study not in the original data-set, and a new nonlinear regression equation was developed to better fit the data and create a more accurate table. The equation,, generally matches the TLV® HAL lookup table, and is a substantial improvement over the linear model, particularly for F> 1.25 Hz and D> 60% jobs. The equation more closely fits the data and applies the TLV® using a continuous function.