首页> 外文会议>Human Factors and Ergonomics Society annual meeting;HFES 2002 >THE EFFECTS OF DYNAMIC WRIST WORKLOADS ON NERVE CONDUCTIONMEASURES FOR EVALUATING CARPAL TUNNEL SYNDROME
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THE EFFECTS OF DYNAMIC WRIST WORKLOADS ON NERVE CONDUCTIONMEASURES FOR EVALUATING CARPAL TUNNEL SYNDROME

机译:腕力动态负荷对腕管综合征评估神经传导的影响

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The effects of exposure to three hours of forceful exertion and repetitive movement on nerve conductionrnfunction were examined in fifteen subjects. Wrist workload was recorded by using biaxialrnelectrogoniometer and force resistance sensor, while the nerve conduction measures were recorded withrnTECA TD-20 EMG machine. The results of peak latency showed an overall increase during taskrnperformance for high force-low repetition, low force-high repetition, and low force-low repetitionrnconditions, while little change for high force-high repetition condition. Analysis of variance on peak latencyrndetected significant effect on time (p<0.001, F=13.79). For amplitude, overall increases for all workloadrnconditions were found until 60 minutes into task performance, but after that time, amplitudes stayedrnrelatively level. As expected, skin temperature had highly significant correlation with peak latencyrn(p<0.001, r~2=0.736), where peak latency appeared to increase as skin temperature decreased. These samernresults were found for peak latency and amplitude after skin temperature corrections. Correlation analysesrnindicated that the maximum wrist flexion, maximum range of motion and cumulative exposure time hadrnhighly significant relationships with peak latency and temperature-corrected peak latency over time.rnSpecifically, the cumulative exposure time of F/E angle > 30" may serve as the best predictive measure forrninvestigating the effects of dynamic wrist workloads on the nerve conduction.
机译:在十五名受试者中检查了暴露于三个小时的强力运动和重复运动对神经传导功能的影响。使用双轴电子测角仪和力阻传感器记录手腕的工作量,而使用TECA TD-20 EMG机记录神经传导的措施。峰值潜伏期的结果表明,对于高力-低重复,低力-高重复和低力-低重复条件,在任务执行期间总体增加,而对于高力-高重复条件,变化很小。峰值潜伏期的方差分析rn检测到对时间的显着影响(p <0.001,F = 13.79)。对于振幅,发现所有工作量条件的总体增加直到执行任务的60分钟为止,但是在那之后,振幅保持相对水平。如预期的那样,皮肤温度与峰值潜伏期rn(p <0.001,r〜2 = 0.736)有高度显着的相关性,其中峰值潜伏期似乎随着皮肤温度的降低而增加。在皮肤温度校正后,发现了峰潜伏期和振幅的这些相同结果。相关性分析表明,最大腕部弯曲,最大运动范围和累积暴露时间与峰值潜伏期和经温度校正的峰值潜伏期之间存在高度显着的关系。特别是,F / E角的累积暴露时间> 30“可能是最佳的预测措施,研究动态腕部工作负荷对神经传导的影响。

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