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Advisor(s)
Abstract(s)
Introdução: A sequência de activação e a actividade muscular, são importantes na coordenação do movimento da
omoplata com a elevação do úmero. Objectivos: Avaliar sequência de activação, actividade e força de músculos do ombro
comparando jogadores com/sem dor. Metodologia: Amostra de 15 atletas (7 - grupo experimental; 8 - grupo controlo).
Avaliou-se electromiograficamente o Deltóide Anterior, Grande Peitoral, Trapézio Superior, Trapézio Inferior e Infra-
Espinhoso na diagonal do Isocinético (90°/s; 180°/s). Resultados: Encontraram-se diferenças na sequência e tempos de
activação; não havendo diferenças na actividade, peak torque e rácio antagonistas/agonistas. Conclusão: A dor crónica
afectou sequência e tempos de activação muscular.
Introduction: Muscles recruitment patterns and activity, are important in coordinating scapular motion with humeral elevation. Purpose: Evaluate shoulder muscles recruitment patterns, muscles activity and strength, comparing volleyball players with/without shoulder pain. Methods: Study with fifteen subjects (7 - experimental group; 8 - control group). It was analyzed the electromyographic activity of Anterior Deltoid, Pectoralis Major, Lower and Upper Trapezius and Infraspinatus, in the Isokinetic diagonal (90º/s; 180º/s). Results: There were differences of muscles recruitment patterns, however it didn´t happen for muscles activity, peak torque and ratio antagonist/agonist. Conclusion: Chronic pain influenced temporal sequence of muscles recruitment and muscles activation time.
Introduction: Muscles recruitment patterns and activity, are important in coordinating scapular motion with humeral elevation. Purpose: Evaluate shoulder muscles recruitment patterns, muscles activity and strength, comparing volleyball players with/without shoulder pain. Methods: Study with fifteen subjects (7 - experimental group; 8 - control group). It was analyzed the electromyographic activity of Anterior Deltoid, Pectoralis Major, Lower and Upper Trapezius and Infraspinatus, in the Isokinetic diagonal (90º/s; 180º/s). Results: There were differences of muscles recruitment patterns, however it didn´t happen for muscles activity, peak torque and ratio antagonist/agonist. Conclusion: Chronic pain influenced temporal sequence of muscles recruitment and muscles activation time.
Description
Keywords
Dor crónica Ombro Padrão de activação Actividade electromiográfica Peak torque Chronic pain Shoulder Muscles recruitment patterns Electromyographic activity
Citation
Publisher
Instituto Politécnico do Porto. Escola Superior de Tecnologia da Saúde do Porto - Politema