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085 The impact of overhead sports: assessment of shoulder range of motion in 1st league professional volleyball players
  1. Joana Almeida1,
  2. Maria João Martins2,
  3. Márcia Sá2,
  4. Beatriz Ribeiro2,
  5. Maria João Almeida1,
  6. João Torres1,2
  1. 1S. Joao University Hospital, Porto, Portugal
  2. 2Faculty of Medicine, Porto, Portugal


Background Throwing is a highly skilled movement performed at the extremes of glenohumeral motion.The constant microtrauma in the throwing shoulder challenges the physiologic limits of the surrounding tissues and leads to modifications in range of motion, due to osseous and soft tissue adaptations.

Objective We aimed to characterize the changes that occur in glenohumeral mobility in volleyball players, determining if these would be different compared to other overhead sports and if differences existed between the two shoulders.

Design This was a cross-sectional study, with clinical data collected from questionnaires and functional evaluation using a goniometer.

Setting The subject group consisted of volleyball players from the major league and/or the national team.

Participants The selection criterion was being a volleyball masculine athlete of a major competition without shoulder complaints; this enrolled a total of 66 professional males.

Interventions Bilateral range of motion (active and passive) was assessed with a goniometer, in both throwing and non-throwing shoulder. We also tested stability.

Main Outcome Measurements We measure forward elevation, extension, external and internal rotation. The specific tests were apprehension, anterior and posterior drawer, and the sulcus sign.

Results The dominant shoulder displayed significantly increased external rotation when compared with the non-dominant (120.92°±14.85 vs 106,78°±12,53). Internal rotation was decreased by 11,99° in the throwing shoulder (p=0.047). Concerning forward elevation, a tendency for greater values was noted (p=0.08), with a higher degree in the throwing arm.

Conclusions Range of motion was different between shoulders. Our athletes had an increase in external rotation and a loss of internal rotation in the throwing shoulder, being concordant with what is described in other overhead sports. Furthermore, the dominant shoulder had a significant increase in forward elevation. These findings support the need of performing these evaluations to monitor the development of injuries, so that preventive measures can be taken.

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