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Flexion vs Concentric - What's the difference?

flexion | concentric |

As a noun flexion

is the act of bending a joint, especially a bone joint. The counteraction of extension.

As an adjective concentric is

having a common center.

flexion

English

Noun

(en noun)
  • The act of bending a joint, especially a bone joint. The counteraction of extension.

    • Related terms

    * anteflexion * circumflexion * deflexion * demiflexion * dorsiflexion * genuflexion * hyperflexion * inflexion ? ** plane inflexion ** point of inflexion * introflexion * lateriflexion * lateroflexion * overflexion * reflexion * retroflexion * semiflexion * superflexion ----

    concentric

    English

    Alternative forms

    * coencentric

    Adjective

    (en adjective)
  • (geometry) Having a common center.
  • (physiology) (of a motion) in the direction of contraction of a muscle. (E.g. extension of the lower arm via the elbow joint while contracting the triceps and other elbow extensor muscles; closing of the jaw while flexing the masseter).
    • Antonym: eccentric. Concentric and eccentric movements are collectively referred to as isotonic (with motion), the antonym of which is isometric (without motion).

    Antonyms

    * (physiology) eccentric

    Related terms

    * concentricity

    See also

    * ("concentric" on Wikipedia)