Unlike the discrete waveform from an ecg, the emg waveform is irregular. why is this?

Question: Unlike the discrete waveform from an ECG, the EMG waveform is irregular. ... An ECG records electrical activity from the heart. Unlike the heart, skeletal muscle does not contract in a fully synchronized fashion. Instead, an EMG records the unsynchronized electrical activity of many muscle fibers.

Not true , they can fall or something

Awould be the answer