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A normal electromyography (EMG) shows consistent electrical activity in muscles at rest, typically characterized by a flat line or minimal spontaneous activity. During voluntary contraction, the EMG displays well-defined, orderly waveforms with consistent amplitude and frequency, reflecting healthy muscle recruitment. There should be no signs of abnormal electrical activity, such as fibrillation potentials or positive sharp waves, which could indicate muscle or nerve damage. Overall, a normal EMG indicates proper neuromuscular function.

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