Modifica di Clinic Electromyography (sezione)

====MultiMUP Analysis====
A recently developed analysis system is based on signal decomposition combined with a template that allows the simultaneous analysis of multiple MUPs. The system analyzes the trace in 4.8-second samples. A MUP is identified with a level-trigger criterion and coded rise time characteristics.<ref name="McGill2" /> Once the MUP is identified, the template is created. This can be done for 6 MUPs simultaneously analyzed at that needle placement site. The classified MUPs are subjected to averaging and then displayed on the EMG recording screen with the possibility of observing each sample individually in case of artifact suspicion.<ref name="Stalberg3" /> With this method, single MUPs can be obtained even from an interference pattern. Each analysis can yield 3 to 6 MUPs.

The advantages of this technique over traditional methods are: 1) very short analysis times, as 20 MUPs needed to complete the exam can be obtained in 2-5 minutes, compared to about 10 minutes using the traditional method to obtain 20 MUPs for each muscle.<ref name="Stalberg3" /> 2) automatic MUP extraction. 3) simultaneous recognition of MUPs of different amplitudes and shapes at a single recording site. 4) reduced MUP data variability among different examiners. Due to reduced variability and faithful data reproducibility, results between laboratories become directly comparable.