Elite level adolescent athletes with Generalised Joint Hypermobility (GJH) display increased lower extremity symptoms and larger postural sway than those without GJH.

Birgit Juul-Kristensen, Heidi Schmidt, Trine Lykke Pedersen, Lesley L. Nicholson, Raoul Engelbert, Tina Junge

Research output: Contribution to conference without a publisher/journalAbstractCommunication


Shoulder overuse injuries frequently occur among competitive swimmers (Wanivenhaus et al, 2012), however, the aetiology of shoulder dysfunction remains unclear (Zemek et al., 1995). Increased shoulder mobility as well as Generalised Joint Hypermobility (GJH), are both suggested being predisposing risk factors for shoulder injuries (Pink et al., 2000, Zemek et al., 1995). An association between GJH and shoulder mobility among young, competitive swimmers has not been studied. The aim of this study was firstly to evaluate the association between GJH and horizontal shoulder abduction (HSA) in young, competitive swimmers, and secondly to describe reference values for HSA among this group. Methods In total, 92 pain-free competitive swimmers (age 10-15 years) participated. GJH was evaluated by the Beighton test (BT) a 0-9 scoring system. GJH was classified at cut points ≥5/9, ≥6/9 and ≥7/9. Shoulder mobility was measured as HSA using an inclinometer in a standardized protocol format. A multiple regression analysis was used to reveal associations between GJH and horizontal shoulder abduction, adjusted for sex and age. Results Overall, significant associations between GJH and HSA were found. An increase in the BT score was positively associated with an increase of HSA, seen as an increased HSA of 3.9 degrees at BT cut point ≥5/9, 5.7 degrees at BT cut point ≥6/7 and 7.9 degrees at BT cut point ≥7/9. Normative values for HSA ranged from 40 to 52 degrees, with a trend towards decreasing HSA by increasing age. Conclusion In this study, a significant association was observed between GJH and HSA, as the horizontal shoulder abduction increased with increasing BT scores. The predictive validity of GJH and HSA with respect to shoulder injuries must be assessed in future studies
Original languageEnglish
Publication date2015
Publication statusPublished - 2015
EventMusicians' Health & Performance 2nd Conference - Odense, Denmark
Duration: 1 Jan 2015 → …


ConferenceMusicians' Health & Performance 2nd Conference
Period01/01/15 → …

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