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Excessive flexibility, either of one or a number of joints, resulting in joint laxity and an increased risk of dislocations, hyperflexibility of the lower limbs can lead to bow-legs (see genu varum) or knock knees (see genu valgum). It is sometimes due to abnormal development and ossification of bones, or, in young athletes, overtraining when the bones are still growing.

Subjects: Sports and Exercise Medicine.

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