This study included spike trigger averaging (STA) procedures to examine the acceptability of the Precision Decomposition (PD) III derived motor unit action potential (MUAP) trains that met the >90% accuracy criteria from the reconstruct-and-test. MUs met the >90% accuracy criteria from the reconstruct-and-test with STA procedures then applied. Y-intercepts and slopes were calculated for the firing rate- and MUAP amplitude-recruitment threshold relationships. Gaussian noise (1% of the SD of the mean interspike interval) was added to the firing times with the changes in MUAPs quantified. A total of 455 MUs were decomposed with 155 MUs removed as a result of the reconstruct-and-test. Five additional MUs were excluded via the STA criteria. The MUAP waveforms deteriorated with the inclusion of Gaussian noise. There were differences in the derived action potentials amplitudes of higher-threshold MUs between the PD III algorithm and the STA procedure. There was excellent agreement among the slopes and y-intercepts between the relationships that included or excluded MUs that did not meet the STA criteria. There was good agreement between the MUAP amplitude-recruitment threshold relationships derived from the PD III and STA procedure. The addition of the STA procedures did not alter the MU-derived relationships.

中文翻译：

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测量从表面肌电图分解得出的电机单元点火时间和动作电位波形的准确性。

这项研究包括峰值触发平均（STA）程序，以检查精确分解（PD）III衍生的运动单位动作电位（MUAP）训练的可接受性，该训练满足重构和测试中> 90％的准确性标准。通过使用STA程序进行的重建和测试，MU达到了> 90％的准确性标准。计算了射击速率与MUAP幅度招聘阈值关系的Y轴截距和斜率。高斯噪声（平均尖峰间隔的SD的1％）被添加到点火时间中，并量化了MUAP的变化。通过重建和测试，总共分解了455 MU，并移除了155 MU。通过STA标准排除了另外五个MU。MUAP波形由于包含高斯噪声而恶化。PD III算法和STA过程之间，较高阈值MU的派生动作电位幅度存在差异。在包含或排除不满足STA标准的MU的关系之间，斜率和y截距之间存在极好的一致性。从PD III和STA程序得出的MUAP幅度增加阈值关系之间有很好的一致性。STA程序的添加不会更改MU派生的关系。从PD III和STA程序得出的MUAP幅度增加阈值关系之间有很好的一致性。STA程序的添加不会更改MU派生的关系。从PD III和STA程序得出的MUAP幅度增加阈值关系之间有很好的一致性。STA程序的添加不会更改MU派生的关系。