Anatomy & Movement · definition
The ongoing low-level activity or tension present in muscles even when they are not producing a large movement.
How the term is used
Muscle tone is influenced by the nervous system and is different from muscle strength or simply feeling tight.
Why it matters
It helps readers distinguish everyday descriptions such as tension or tightness from specific physiology terms.
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Where this fits in a practice
The guides explain the idea in context; the service pathways are there when reading is not enough. Educational content only — nothing here is medical or mental-health care.