Unlike the discrete waveform from an electrocardiogram, the electromyogram waveform is irregular. ... In contrast, an electromyogram waveform is irregular because it is the unsynchronized electrical activity of many muscle fibers.

How did your EMG trace change when you added weights to your arm based on your data what would you infer is happening in your muscles as more weight is added?

Based on the data you collected what can you infer is happening to the muscles as weight is added? As weight increases, the EMG trace depicted a higher amplitude in the action potentials.

How does an EMG trace change with increasing muscle activity?

EMG is electromyography and it is a technique that measures the electrical activity of muscles. ... How does an EMG trace change with increasing muscle activity? Increasing muscle activity will result in increased recorded EMG activity, or result. in increased EMG amplitude and frequency.