Interventional radiologists are at increased risk for musculoskeletal discomfort/disorders and this has been linked to the use of radiation personal protective equipment (rPPE). This study examined the effects of rPPE on the development of fatigue of the erector spinae and trapezius muscles. Surface electromyography (EMG) was used to capture muscle activity, and both time domain (average rectified value) and frequency domain (median frequency) measures were considered in the assessment of localized muscle fatigue. Sixteen participants performed a simulated surgical procedure requiring intermittent 30° flexed static trunk posture with and without rPPE on separate days. The results showed that the rPPE condition demonstrated significantly greater (p < 0.05) downward shift in median frequency in the left lumbar erector spinae and left lower thoracic erector spinae consistent with task-induced localized muscle fatigue. Ergonomic intervention strategies are discussed.

中文翻译：

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外科放射防护用品对基于EMG的背部和肩部肌肉疲劳测量的影响：新手的实验室研究。

介入放射科医师出现肌肉骨骼不适/疾病的风险增加，这与使用放射防护设备（rPPE）有关。这项研究检查了rPPE对竖脊肌和斜方肌疲劳发展的影响。使用表面肌电图（EMG）捕获肌肉活动，并在评估局部肌肉疲劳时同时考虑了时域（平均整流值）和频域（中频）措施。16名参与者进行了模拟外科手术，要求在单独的几天中使用rPPE和不使用rPPE进行间歇性30°弯曲的静态躯干姿势。结果表明，rPPE条件显示出明显更高（p <0。05）左腰直肌脊柱和左下胸直肌脊柱中位频率的下移与任务诱发的局部肌肉疲劳一致。讨论了人体工程学的干预策略。