The first known reference to joint laxity which leads to joint hypermobility is attributed to Hippocrates who, in the 4th century BC, described the Scythians as being "so-loose-limbed that they were unable to draw a bow-string or hurl a javelin." The prevalence of generalized joint hypermobility varies from 10 to 30 percent. This was illustrated in a study of 123 healthy medical students where 22 (18%) had at least one lax joint, and 14 others (11%) had three or more lax joints. Joint laxity is more common in the right limb, females, blacks, and in children from families with higher socioeconomic status.
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