The links between Generalized Joint Laxity and the incidence, prevalence and severity of limb injuries related to physical exercise: a systematic literature review

Abstract

Background: Generalized Joint Laxity (GJL) is a significant risk factor for lower limb injury incidence and prevalence in sporting populations. However, the links with upper limb injury and injury severity in a wider population of people undertaking physical exercise have not been systematically reviewed to date.Objectives: The primary aim was to determine the links between GJL and the incidence, prevalence and severity of upper and lower limb injuries related to physical exercise. Secondary aims were to identify the quality of the existing research evidence and gaps within the literature that may warrant future research.Methods: Relevant literature was identified using online databases (SportDiscus, Medline, CINAHL and EMBASE OVID) and snowballing. Research papers with a primary aim of identifying a link between GJL and upper and lower limb injury incidence, prevalence and/or severity were included. The population of interest was those undertaking physical exercise, not limited to sport. Included papers were critically appraised and a narrative synthesis conducted.Results: A total of 274 studies were identified. Following application of the inclusion and exclusion criteria, nine papers were selected for critical appraisal that investigated the link between GJL and the incidence, prevalence and/or severity of limb injuries. The link between GJL and lower limb injury incidence and prevalence was supported across numerous types of physical exercise. However, the links between GJL and upper limb injury, and injury severity was inconclusive.Conclusions: GJL is associated with increased lower limb injury incidence and prevalence. Future research should investigate the links between GJL, upper limb injury and injury severity.