Technology and Assessment
What Surface EMG Measures
3 min read·Updated 2026-07-15
A plain-language look at surface electromyography and what it reveals about muscle activity along the spine.
Surface EMG measures electrical activity in muscles along the spine. It provides a snapshot of how those muscles are working relative to one another.
It is one input among many. The value is in trending change over time as part of a broader evaluation.
This article is general education, not personal medical advice. If your symptoms include any red-flag signs, seek prompt medical evaluation.
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