Whole-Body Vibration Exposure in Urban Motorcycle Riders

市區機車騎士之全身性振動暴露

陳協慶(Hsieh-Ching Chen) ； 劉永平(Yung-Ping Liu) ； 江政宗(Cheng-Tsung Chiang)

《人因工程學刊》 20卷1期 (2018/12) Pp. 35-49

https://doi.org/10.6273/JES.201812_20(1).0004

摘要

Twenty-two male and twenty-three female motorcycle riders performed ninety test runs on six 20-km paved urban routes. Root mean square of acceleration, 8-hour estimated vibration dose value (VDV_((8))), and 8-hour estimated daily static compression dose (S_(ed)) were determined in accordance with ISO 2631-1 (1997) and ISO 2631-5 (2004) standards. The analytical results indicated that over 90% of the motorcycle riders revealed VDV_((8)) exceeding the upper boundary of health guidance caution zone (17 m/s^(1.75)) recommended by ISO 2631-1 or S_(ed) exceeding the value associated with a high probability of adverse health effects (0.8 MPa) according to ISO 2631-5. Over 50% of the motorcycle riders exceeded exposure limits for VDV and S_e within 3 hours. Significantly greater exposure levels were observed in male participants than in female participants for VDV_((8)) (p＜0.05) and S_(ed) (p＜0.005). The health impacts of WBV exposure in motorcycle riders should be carefully addressed with reference to ISO standards.

關鍵字

ISO 2631 standards ； motorbike ； health risk

並列摘要

本研究評估22名男性及23名女性，騎乘機車行駛於台中市區6條20公里長度的不同道路，進行90次的全身性振動暴露測試。資料分析分別依據ISO 2631-1（1997）以及ISO 2631-5（2004）規範，計算頻率加權加速度之均方根值（RMS）、8小時日振動暴露劑量（VDV_((8))）、以及8小時腰椎靜壓劑量（S_(ed)）之估計值。結果發現超過90%機車測試的VDV_((8))超過ISO 2631-1的暴露限制（17m/s^(1.75)）或S_(ed)超過ISO 2631-5的暴露限制（0.8 MPa）。根據VDV與S_e指標之日暴露限制，超過50%的機車日振動暴露需限制低於3小時。男性騎士之振動暴露又明顯高於女性（VDV_((8)):p＜0.05, S_(e(8)):p＜0.005）。根據ISO規範之評估結果，有必要對機車騎乘所造成之健康危害作進一步的探討。

並列關鍵字

ISO 2631標準 ； 機車 ； 健康風險