RESUMO
BACKGROUND/AIM: Different authors have tried to correlate the peak isokinetic torque values with the incidence of soccer match injuries. However, due to the wide variety of assessment testing protocols, such an inference becomes difficult. This study aimed to verify the capacity of an isokinetic test to establish injury risk reference values for hamstring strain injuries. METHODS: A retrospective cohort study based on isokinetic data and clinical records from the last 10 years was conducted in 582 Brazilian elite-professional soccer players, who were subjected to the same isokinetic test protocol, machine, and tester. A Multivariate Logistic Regression Analysis for Complex Data Sampling was used to generate injury risk statistical indexes. RESULTS: Multivariate regression analysis of both legs provided important data to identify the cut-off values of Concentric Peak Torque (181.82 Newton/*metres), Concentric Work (236.23 watts) and Concentric Power (130.11 joules). CONCLUSIONS: The injury risk indexes indicate that an increase of just one Newton unit in CPT (Concentric Peak Torque) and CJ (Concentric Power) above those cut-off values, can reduce the risk of future injuries by 2% and 2.7%, respectively.
RESUMO
As pesquisas na area da eletrotermofototerapia precisam de constante e criteriosa revisao para orientaçao de novos estudos e uso sensato desta pratica terapeutica. Salientamos nesta revisao autores e bibliografias emblematicas para o direcionamento de nosso estudo e futuros incentivos a novas pesquisas. A partir deste levantamento bibliografico estabelecemos criterios atraves de procedimentos laboratoriais de ensaios e dados biofisicos, para que os aspectos usados nesta revisao de alguma forma fossem comprovados com certa mergem de segurança. Embora alguns auores tendem a desconfiança da tecnica ultrasonica para a pratica clinica in vivo, buscamos orientaçoes que fundamentem a real expectativa sobre o efeito ultra-sonico na consolidaçao óssea.