Joint hypermobility in young gymnasts: Implications for injury and performance
KeywordsAge, Beighton score, gender, gymnastic level, joint hypermobility, flexibility
AbstractObjectives: Hypermobility in gymnastics has both performance and injury implications. There is a paucity of studies that have reported joint hypermobility scores in young gymnasts and there is a need to consider joint hypermobility across different gender, age and performance levels. This study aimed to report the prevalence of joint hypermobility and range of motion values for the hip, shoulder, ankle and spine in male and female gymnasts. Methods: This study determined joint hypermobility via the Beighton score and range of motion for hip flexion, extension, abduction, shoulder flexion, ankle plantarflexion and lumbar extension in 25 male gymnasts (age:10.44±2.89 years, height:142.16±20.00cm, mass: 28.00±7.43kg and 25 female gymnasts (age:11.16±2.70 years,height: 141.55±22.34cm,mass: 32.33±7.99kg). Results: Joint hypermobility ranged from 56% (male gymnasts) to 68% (female gymnasts). The highest Beighton score was observed in female gymnasts (4.76±2.05), female gymnasts ≤13 years (4.93±1.87) and male national level gymnasts (5.67±1.15). No significant differences existed for Beighton scores between male and female gymnasts for gender (p=0.26) and age (p=0.095). Significant differences existed between male and female gymnasts for left hip extension (p=0.001), right hip extension (p=0.001), left hip abduction (p=0.001), right hip abduction (p=0.001) and lumbar extension (p=0.001) with all range of motion greater in females. For age and gender groups, significant differences existed between female gymnasts <13 and male gymnasts ≥13 for hip flexion, hip extension and hip abduction movements bilaterally and between female gymnasts <13 and male gymnasts <13 significant differences existed for all hip extension and hip abduction bilaterally. Between female gymnasts <13 and ≥13 significant differences existed for shoulder flexion bilaterally. Between female gymnasts ≥13 and male gymnasts <13 significant differences existed for all shoulder flexion bilaterally and for lumbar extension which was significantly greater in the <13 female gymnasts than ≥13 male gymnasts. A significant difference existed between male and female gymnasts for left hip extension (p=0.01), right hip extension (p=0.01) and left hip abduction (p=0.001) and right hip abduction (p=0.001) Conclusion: No significant differences were observed for the BS between gender, age and performance level groups however significant differences did exist for several range of motion values particularly at the hip in relation to gender, age and level and therefore this joint may be an important focus for performance enhancement and injury prevention. These differences highlight the importance of range of motion measurement in addition to BS measurement and the need to consider gender age and gymnastic level when working with child gymnasts.
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