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Extension of a bodily joint beyond its normal range of motion.

hy′per·ex·tend′ (-ĭk-stĕnd′) v.


(Medicine) extension of an arm or leg beyond its normal limits


(ˌhaɪ pər ɪkˈstɛn ʃən)

the extension of a part of the body beyond normal limits.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hyperextension - greater than normal extension
extension - act of stretching or straightening out a flexed limb
References in periodicals archive ?
Likewise, hyperextension of the knees can push your weight into your heel, and also cause gripping.
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It also protects neurological structures by preventing hyperextension of the elbow.
A hyperextension and bone bruise in his left knee will keep him off the floor Tuesday night, and it's unknown when he'll be able to return.
Case Presentation: A 44-year-old male CrossFit athlete presented with a history of two non-contact hyperextension injuries to his left knee while walking on ice.
He was attempting a tackle and there was a hyperextension of the arm.
After surgery our patient returned to his routine activities after 5 days and started running about 10 days later, without anterior knee pain and without deficit of hyperextension.
LE hypermobility was measured using the LE-specific Beighton hypermobility measure, defining hypermobility as both legs having greater than 10[degrees] knee hyperextension.
2,5] Hyperextension during feeding influences the alignment of pharyngeal structures and places infants at risk for aspiration, a symptom of OPD.
Additionally, complex and high-impact mechanisms of injuries can compel the neck into extremes of hyperextension, hyperflexion and hyperrotation, subjecting the soft tissue structures to severe shear and tensile forces.
Don't drive your arm too hard through the end (extension) part of the movement; this can cause hyperextension and tendonitis.