心物法初始重量對最大可接受卸下重量影響

The Impact of Initial Weight of Psychophysics on Maximum Acceptable Weight of Lower

劉憶涵(Yi-Han Liu)

指導教授 ： 何正斌

國立屏東科技大學/管理學院/工業管理系所/碩士(2009年)

https://doi.org/10.6346/NPUST.2009.00075

摘要

本研究旨在探討心物法中初始重量與卸下頻率對於最大可接受卸下重量之影響。本研究招募20位男性學生進行卸下實驗，自變項為初始重量（輕、中及重）和卸下頻率（1及2次/min）。研究結果顯示：初始重量對MAWLo值有顯著影響，初始重量越重，則所求之MAWLo值也越大；頻率對心搏率的次數有顯著影響，意即頻率越高，心搏率的平均次數也越高；初始重量與頻率對調整次數有顯著影響，意即初始重量之重量兩極化時，所調整之次數也增多，頻率越高則越快調出MAWLo值；身體各部位疲累程度以「下背」最嚴重。研究結果顯示MAWLo值過於高估，會使得作業員受傷，故建議後續學者可將初始重量設定較輕之水準。

關鍵字

初始重量 ； 最大可接受卸下重量 ； 心物法

並列摘要

The aim of the study is to explore the effects of initial weights and lowering frequencies on psychophysically determined maximum acceptable weight of lowering (MAWLo). Twenty college students were recruited in the study. Independent variables are initial weights (light, medium, and heavy) and lowering frequencies (1 and 2 lowerings/minute). The study results show the initial weights have significant impact on MAWLo. The heavier the initial weights, the more of MAWLo. Lowering frequencies have significant effects on heart rate. The more lowering frequency, the more heart rate increased. The initial weights and lowering frequencies have significant effects on adjustment times. The adjustment times increases at initial weights of light and heavy levels and at higher lowering frequency. The lower back are the most fatigue part from the results of RPEs. Finally, if the estimated MAWLo is higher than expected, the possibility of operators injured would increase. Hence, the study recommended setting less initial weight to estimate MMH capacity psychophysically.

並列關鍵字

Initial weight ； Maximum Acceptable Weight of Lower ； Psychophysics

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