Document Detail

The effects of jump-rope training on shoulder isokinetic strength in adolescent volleyball players.
MedLine Citation:
PMID:  20543219     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To investigate the effect of a 12-wk weighted-jump-rope training program on shoulder strength. DESIGN: Pretest to posttest experimental design. SETTING: University sports physiotherapy laboratory. PARTICIPANTS: 24 healthy volleyball players age 13-16 y. INTERVENTION: Group 1 took weighted-rope training (n = 9), group 2 took unweighted-rope training (n = 8), and group 3 did not train with any specific program (n = 7). MAIN OUTCOME MEASURES: Players' strength determined with an isokinetic dynamometer (Isomed 2000) at 180 and 60 degrees on external and internal rotators, supraspinatus peak torque, and total work of the dominant shoulder. Kruskal-Wallis and Mann-Whitney U tests were used to determine the difference among the groups. RESULTS: At pretraining evaluation, there were no significant differences in the test scores of the isokinetic test of full can and empty can between the groups at 60 and 180 degrees. There was no statistically significant difference for 60 and 180 degrees between pretraining and posttraining assessment (P > .05) except that total eccentric work increased in groups 1 and 3 but decreased in group 2 at 180 degrees during the full can (P < .05). There was no significant difference among the groups between the pretraining and posttraining testing at both 180 and 60 degrees for the empty can (P > .05). Internal-rotation values at 60 and 180 degrees decreased for both peak torque and total work for all groups. External-rotation peak torque and total work at 60 degrees increased for group 1. External-rotation peak torque and total work at 180 degrees increased for all groups. CONCLUSIONS: The results indicate that a jump-rope training program is a good conditioning method for overhead athletes because of its potential benefits to shoulder strength.
Irem Duzgun; Gul Baltaci; Filiz Colakoglu; Volga Bayrakci Tunay; Derya Ozer
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Journal of sport rehabilitation     Volume:  19     ISSN:  1056-6716     ISO Abbreviation:  J Sport Rehabil     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-06-14     Completed Date:  2010-08-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9206500     Medline TA:  J Sport Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  184-99     Citation Subset:  IM    
Dept of Physical Therapy and Rehabilitation, Gazi University, Ankara, Turkey.
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MeSH Terms
Adaptation, Physiological
Age Factors
Exercise / physiology*
Muscle Contraction / physiology*
Muscle Strength / physiology*
Muscle, Skeletal / physiology*
Physical Fitness
Range of Motion, Articular
Resistance Training
Shoulder / physiology*
Shoulder Joint / physiology*
Statistics, Nonparametric
Time Factors
Volleyball / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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