Shoulder rotation strength changes from preseason to midseason: A cohort study of 292 youth elite handball players without shoulder problems

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

DOI

  • Behnam Liaghat, Syddansk Universitet
  • ,
  • Jesper Bencke, Københavns Universitet
  • ,
  • Mette K. Zebis, University College Copenhagen
  • ,
  • Henrik Sørensen
  • Grethe Myklebust, Norwegian School of Sport Sciences
  • ,
  • Niels Wedderkopp, Syddansk Universitet
  • ,
  • Martin Lind
  • Merete Møller, Syddansk Universitet

U OBJECTIVE: To investigate change in shoulder rotation strength from preseason to midseason during a competitive season in youth elite handball players without shoulder problems. U DESIGN: Prospective cohort study. U METHODS: Players (n = 292, 45% female, 14-18 years of age) without shoulder problems from Danish youth elite handball clubs were assessed in the preseason and midseason. We measured isometric shoulder strength using handheld dynamometry in internal rotation (IR) and external rotation (ER) in supine, with the shoulder abducted 90° in neutral rotation and in 30° of IR. The primary outcome was the change in corresponding ER/IR ratio. U RESULTS: The mean ER/IR ratios increased from preseason to midseason in neutral rotation (male player difference, 0.02; 95% confidence interval [CI]: –0.01, 0.06; female player difference, 0.05; 95% CI: 0.01, 0.09) and in 30° of IR (male player difference, 0.15; 95% CI: 0.11, 0.20; female player difference, 0.12; 95% CI: 0.07, 0.17). The change in ER/IR ratio may be explained by an increase in ER strength in female players and a decrease in IR strength in male players. The amount of change in ER/IR ratio over the season was greater than individual measurement error metrics for 45% to 66% of the players. U CONCLUSION: Shoulder rotation strength ratios changed during a competitive season in Danish youth elite handball players.

OriginalsprogEngelsk
TidsskriftJournal of Orthopaedic and Sports Physical Therapy
Vol/bind50
Nummer7
Sider (fra-til)381-387
Antal sider7
ISSN0190-6011
DOI
StatusUdgivet - jul. 2020

Se relationer på Aarhus Universitet Citationsformater

ID: 197391148