core stability
A2CEFR level
20/100Rarity: fairly common
TechnicalRegister
The ability of the trunk muscles to support and control the spine and pelvis during movement.
Improving core stability helped take the strain off her lower back when lifting the children.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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