Rheumatology research has shown an increased rate of joint pain and pathology among very flexible (hypermobile) patients. Some have extrapolated from research in rheumatology clinic populations and made the recommendation that people who are hypermobile avoid sports. However little research has been performed that confirms whether hypermobile athletes do participate in sports and if they do, whether they suffer from more frequent or more severe injuries.
Generalized joint hypermobility and its relationship to injury patterns among NCAA lacrosse players
Prevalence and features of joint hypermobility in adolescent athletes