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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Range of motion and isometric strength of shoulder joints of team handball athletes during the playing season, Part II: changes after midseason.
    Author: Fieseler G, Jungermann P, Koke A, Irlenbusch L, Delank KS, Schwesig R.
    Journal: J Shoulder Elbow Surg; 2015 Mar; 24(3):391-8. PubMed ID: 25306493.
    Abstract:
    OBJECTIVE: Our objective was to investigate the influence of workload and consecutive changes on active range of motion and isometric strength of team handball athletes' throwing shoulders (TSs) because the available data are insufficient. METHODS: In a longitudinal investigation, 31 professional male handball athletes underwent a clinical shoulder examination. Athletes were examined at the beginning (week 0), at the end (week 6) of the preseasonal training, and at the end of the half-season (week 22) on both shoulders to determine isometric rotational strength (hand held dynamometer) and active range of motion (goniometer). RESULTS: This analysis demonstrates the results subsequently from week 6 to week 22 and from week 0 to week 22. The glenohumeral internal rotation (IR) deficit (GIRD), external rotation (ER) gain, and ER at the TS increased significantly (P < .05, η(2) > 0.10, d > 0.30) in the first sequence (week 6 to week 22) but not significantly from week 0 to week 22. The total range of motion remained stable, and IR changed but not significantly. There was no influence on IR, ER, and total range of motion at the non-TS. The isometric strength of the TS and non-TS IR did not change. The isometric strength in ER significantly increased bilaterally during the investigation period. CONCLUSIONS: Our data verify changes and influences, such as an increasing GIRD, at the overhead TS joint in accordance with the workload during team handball season. ER gain did improve after the half-season period but did not fully compensate the GIRD at the TS.
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