本文選題：表面肌電 + 重復(fù)性��； 參考：《現(xiàn)代預(yù)防醫(yī)學(xué)》2017年08期

【摘要】：目的利用表面肌電圖(surface Electromyography,s EMG)技術(shù)和主觀疲勞感覺(jué)評(píng)分(Rating of Perceived Exertion,RPE)對(duì)重復(fù)性同側(cè)搬舉勞作相關(guān)肌肉疲勞進(jìn)行研究。方法受試者為機(jī)電一體化專(zhuān)業(yè)10名男性大學(xué)生志愿者,將一個(gè)5 kg工件從右側(cè)搬至工作臺(tái)高0.85 M,工作臺(tái)與箱子之間的水平距離為0.5 m,由工作人員將工件放回原位置,如此反復(fù)搬舉,完成3次15 min搬舉,其中完成1次15 min搬舉后休息3 min,在實(shí)驗(yàn)過(guò)程中,用Brog10主觀感覺(jué)疲勞評(píng)定表記錄每5分鐘4塊肌肉主觀疲勞感覺(jué)分?jǐn)?shù)。結(jié)果在整個(gè)實(shí)驗(yàn)過(guò)程中,s EMG指標(biāo)中位頻率(Median Frequency,MF)和平均功率頻率(Mean Power Frequency,MPF),隨著搬舉時(shí)間的延長(zhǎng)呈下降趨勢(shì),而平均肌電值(average EMG,AEMG)值和主觀疲勞感覺(jué)分?jǐn)?shù)側(cè)呈上升趨勢(shì)。采用重復(fù)測(cè)量方差對(duì)MF值、MPF值和AEMG值進(jìn)行分析,得出右斜方肌的疲勞程度大于左斜方肌;左豎脊肌的疲勞程度大于右豎脊肌。主觀疲勞感覺(jué)評(píng)分從高到低依次是:左豎脊肌、右斜方肌、左斜方肌和右豎脊肌;采用重復(fù)測(cè)量方差分析對(duì)各肌肉在不同階段的差異性檢測(cè),右斜方肌和左豎脊肌差異有統(tǒng)計(jì)學(xué)意義(P0.01),左斜方肌差異有統(tǒng)計(jì)學(xué)意義(P0.05),右豎脊肌差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。結(jié)論重復(fù)性同側(cè)搬舉勞作過(guò)程中,左右斜方肌之間和左右豎脊肌疲勞程度的不一致,容易引起工作相關(guān)肌肉骨骼疾患。建議企業(yè)應(yīng)該根據(jù)勞作負(fù)荷和時(shí)間,科學(xué)合理安排作息時(shí)間,緩解工作中肌肉疲勞,從而有效預(yù)防相關(guān)肌肉骨骼的疾病。
[Abstract]:Objective using surface Electromyography (s EMG) technique and subjective fatigue sensation score (Rating of Perceived Exertion, RPE) to study the muscle fatigue related to duplicated movement of the same lateral movement. Methods the subjects were 10 male college students of mechatronics, and a 5 kg workpiece was moved from the right to the worktable from the right. The height of 0.85 M, the horizontal distance between the worktable and the box was 0.5 m, and the work staff put the workpiece back to the original position, so repeated lifting, completed 3 times 15 min lifting, which completed 1 15 min lifting and rest 3 min after the completion of the experiment. In the experiment, the subjective fatigue sensation score of 4 blocks of 4 blocks was recorded by the Brog10 subjective feeling fatigue assessment. The results were During the whole experiment, the median frequency (Median Frequency, MF) and the average power frequency (Mean Power Frequency, MPF) of the s EMG index decreased with the extension time, while the average EMG (average EMG, AEMG) value and the subjective fatigue sense fraction were on the rise. The fatigue degree of the right trapezius muscle is greater than that of the left trapezius muscle; the degree of fatigue of the left erector muscle is greater than that of the right erector muscle. The subjective fatigue sense score from high to low is the left erector, right trapezius, left trapezius and right erector muscles. The difference of the muscles at different stages, right trapezius muscle and left muscle, is detected by repeated measurement of variance analysis. There was statistical significance (P0.01), there was significant difference in the left trapezius muscle (P0.05), and there was no significant difference between the right vertical ridges (P0.05). Conclusion the fatigue degree of the left and right trapezius muscles and the left and right ridge muscles was not consistent during the duplication of the ipsilateral lifting, and it was easy to cause the working related musculoskeletal disorders. According to work load and time, scientific and reasonable arrangement of work and rest time, relieve muscle fatigue in work, so as to effectively prevent related musculoskeletal diseases.

【作者單位】： 上海工程技術(shù)大學(xué)高等職業(yè)技術(shù)學(xué)院;同濟(jì)大學(xué)體育教學(xué)部;上海體育學(xué)院運(yùn)動(dòng)科學(xué)學(xué)院;
【分類(lèi)號(hào)】：R13

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