Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/11981

Title: Effects of shoulder compensatory strength training program in rotator cuff strength of young swimmers.
Authors: Batalha, Nuno
Raimundo, Armando M.
Tomas-Carus, Pablo
Fernandes, Orlando
Sousa, João Paulo
Costa, Aldo
Silva, António
Editors: Kjendlie, Per-Ludvik
Stallman, Robert
Cabri, Jan
Keywords: Swimming
Shoulder rotators
Strength training
Issue Date: 2010
Citation: Batalha, Nuno; Raimundo, Armando M.; Tomas-Carus, Pablo; Fernandes, Orlando; Sousa, João Paulo; Costa, Aldo; Silva, António. Effects of shoulder compensatory strength training program in rotator cuff strength of young swimmers. Trabalho apresentado em XIth International Symposium - Biomechanics and medicine in swimming, In Book of abstracts of the XIth International Symposium - Biomechanics and medicine in swimming, Oslo - Norway, 2010.
Abstract: INTRODUCTION The purpose of this study was to evaluate de effects of 16 week compensatory strength training program in shoulder strength and respective conventional ratios (concentric ER/IR). METHODS A total of 40 national level male swimmers were assessed and randomly divided in two groups – experimental group (N=20)-(age:14.65±0.67 years old, height:173.48±6.87 cm, body mass:63.15±5.68 kg) and control group (N=20)-(age:14.60±0.60 years old, height: 170.79±6.48 cm, body mass:61.73±4.68 kg). Experimental subjects participated in a 16 week shoulder strength program with Thera-Band® elastic bands (3 times a week). The peak-torque of shoulder internal (IR) and external rotators (ER) was measured in both groups at baseline and after 16 weeks. Concentric action at 60º/s (3 rep) and 180º/s (20 rep) were measured, in a seated position, with the shoulder at 90º of abduction and the elbow flexed to 90º, using an isokinetic dynamometer (Biodex System 3 – Biodex Corp., Shirley, USA). Anova with repeated measures was used to determine significant main effects in shoulder rotators strength and unilateral ER/IR ratios. The level of significance was set at 0.05. RESULTS Significant differences were found in all variables that measure the ER shoulder strength at 60º/s in dominant(DT) (P=0.031) and non-dominant(NDT) shoulder (P=0.001). Meanwhile concentric action at 180º/s, only showed significant differences on DT shoulder (P=0.032). In respect of ER/IR ratio, a compensatory strength training programme induces significant differences in both shoulders at 60º/s (DT: P=0.001; NDT: P=0.001). At 180º/s we just found significant effects on the DT ER/IR ratio (P=0.002). DISCUSSION The results of this study support earlier research [1] that showed that the unilateral shoulder strength ratios increases substantially after a period of a strength training program. Since the ratios describe the quality of muscular balance/imbalance [1], we can conclude that a 16 week compensatory shoulder strength training program using Thera-Band® elastic bands, reduces muscular imbalances in rotator cuff of competitive young swimmers. These results highlight the useful of this kind of compensatory program to prevent shoulder injuries.
URI: http://hdl.handle.net/10174/11981
Type: article
Appears in Collections:DES - Artigos em Livros de Actas/Proceedings

Files in This Item:

File Description SizeFormat
Abstract_2_BMS.pdf16.66 kBAdobe PDFView/Open
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois