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Interação entre o encurtamento da cápsula posterior e a retroversão humeral - estudo em cadáveres e in vivo

Processo: 15/14311-3
Linha de fomento:Bolsas no Exterior - Estágio de Pesquisa - Doutorado
Vigência (Início): 01 de abril de 2016
Vigência (Término): 31 de março de 2017
Área do conhecimento:Ciências da Saúde - Fisioterapia e Terapia Ocupacional
Pesquisador responsável:Paula Rezende Camargo
Beneficiário:Dayana Patricia Rosa
Supervisor no Exterior: John David Borstad
Instituição-sede: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brasil
Local de pesquisa : Ohio State University, Columbus, Estados Unidos  
Vinculado à bolsa:14/10355-3 - Alterações biomecânicas e neurofisiológicas em indivíduos com encurtamento da cápsula posterior do ombro: avaliação e tratamento, BP.DR

Resumo

Studies consistently demonstrate that individuals who perform overhead throwing activities have decreased glenohumeral internal rotation (IR) and increased external rotation (ER) range of motion (ROM). Evidence for osseous and soft tissue adaptations such as increased humeral retroversion (HR), posterior capsule tightness (PCT), and/or posterior muscles tightness help explain these ROM changes. However, because these tissue adaptations have only been studied in isolation, the combined effects of osseous and soft tissue changes on ROM are not understood. This results in ambiguous clinical decision making, outcome assessments, and research design. Therefore, the purposes of this project are to determine how PCT and HR interact to influence ROM and to assess how these tissue adaptations impact the clinical measurements used to evaluate glenohumeral ROM. Twelve fresh-frozen cadaver specimens will be used to first study the interaction among PCT and increased HR. Established models for creating PCT and HR will be used to assess ROM during clinical measurements across four conditions: Baseline (the unaltered condition); Increased HR alone; PCT alone; and PCT plus Increased HR. Clinical measurements to be assessed include bicipital forearm angle (BFA), low flexion test (LF), glenohumeral IR, and cross-body adduction. In a subsequent study, 60 subjects will be recruited and divided in 4 groups based on their clinical measurements. The groups will include: a control group without PCT and normal HR; a PCT only group with LF side-to-side differences of >7°; a HR only group with BFA side-to-side differences of >15°; and a PCT and HR group. The same clinical measurements from the cadaver analysis will be quantified on both shoulders. This study will also assess posterior shoulder muscle stiffness. For both studies, statistical analysis will depend of normality of the data. Significance of 5% will be considered.

Publicações científicas
(Referências obtidas automaticamente do Web of Science e do SciELO, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores)
ROSA, DAYANA P.; CAMARGO, PAULA R.; BORSTAD, JOHN D. Effect of Posterior Capsule Tightness and Humeral Retroversion on 5 Glenohumeral Joint Range of Motion Measurements: A Cadaveric Study. AMERICAN JOURNAL OF SPORTS MEDICINE, v. 47, n. 6, p. 1434-1440, MAY 2019. Citações Web of Science: 0.
ROSA, DAYANA P.; CAMARGO, PAULA R.; BORSTAD, JOHN D. The influence of posterior glenohumeral joint capsule tightness and humeral retroversion on clinical measurements. PHYSICAL THERAPY IN SPORT, v. 34, p. 148-153, NOV 2018. Citações Web of Science: 1.

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