VI Congress of the Brazilian Society of Physiotherapists in Sport (SONAFE),14-17 Nov 2013, Sao Paulo, Brazil: Top selected abstracts ANATOMIC ALIGNMENT OF LOWER LIMBS AND MUSCULOSKELETAL INJURIES IN RUNNERS: DESCRIPTIONS, ASSOCIATIONS AND INJURY RATES Aline Carla Araújo de Carvalho 1 , Luiz Carlos Hespanhol, Jr. 2, 3 , Leonardo Oliveira Pena Costa 4, 5 , Alexandre Dias Lopes 6, 3 . 1 Lecturer of the Graduation Program in Physical Therapy, University Center CESMAC, Maceió, AL, Brazil; 2 Junior Researcher of the Department of Public & Occupational Health and EMGOþ Institute for Health and Care Research, VU University Medical Center, Amsterdam, NH, The Netherlands; 3 Researcher of the São Paulo Running Injury Group (SPRunIG) of the Masters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo – UNICID, São Paulo, SP, Brazil; 4 Head and Associate Professor of the Masters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo – UNICID, São Paulo, SP, Brazil; 5 Senior Research Fellow of the Musculoskeletal Division, The George Institute for Global Health, Sydney, NSW, Australia; 6 Associate Professor of the Masters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo – UNICID, São Paulo, SP, Brazil Background: Much has been said about the influence of factors such as lower limb alignment and the development of musculoskeletal injuries in runners, but little evidence supports this hypothesis. Objective: To describe the anatomical alignment of the lower limbs, to measure the prevalence and incidence of musculoskeletal injuries related to running, to examine the associations between the charac- teristics of these injuries and anatomical alignment, and describe the major injuries among runners and the anatomical regions most affected. Method: A prospective cohort study composed of 89 recreational runners who underwent measures of bilateral Q angle, subtalar angle, medial longitudinal arch and length discrepancy of lower limb and were followed for a period of 12 weeks. We performed descriptive analysis and verification of the association between the characteristics of anatomical alignment of the runners and injuries. The incidence of injuries was calculated using survival analysis and Cox regression models determined the association between potential risk factors and time of injury. Results: Participants of the study were on average 44 years old (SD ¼ 10), without major changes in the alignment of lower limbs and presented an association between changes in Q angle and the discrepancy of Q angle with musculoskeletal injuries. The prevalence of musculoskeletal injuries related to running was 61.8%, the incidence over 12 weeks was 27%, ten- dinopathies and muscle injuries were the most common injuries and the knee and the leg were the most affected regions. Conclusions: It was possible to identify the association of the discrepancy between the Q angle and the Q angle changes with injuries in runners. We also identified tendinopathies and muscle injuries as major injuries and the knee as the most affected region. BIOMECHANICAL PROFILE OF NEUROMUSCULAR EFFICIENCY OF THE VASTUS MEDIALIS MUSCLE IN CAPOEIRA PRACTITIONERS Pedro Olavo de Paulo Lima 1,* , Paulo Ricardo Pinto Camelo 2 , Victor Matheus Leite Mascarenhas Ferreira 2 , Paulo Jorge Santiago do Nascimento 2 , Ricardo Hugo Gonzalez 3 , Rodrigo Ribeiro de Oliveira 2 . 1 League of Sports Physical Therapy, Federal University of Ceara, Brazil; 2 Human Movement Analysis Laboratory, Federal University of Ceara, Brazil; 3 Institute of Physical Education and Sports, Federal University of Ceara, Brazil Background: Capoeira is a Brazilian sport that combines fighting and dancing. Objective: To evaluate the biomechanical profile of neuromuscular effi- ciency (NME) of the vastus medialis muscle in capoeira practitioners. Methods: We conducted a cross-sectional study in the Human Movement Analysis Laboratory, Federal University of Ceara in 2012. We analyzed 51 subjects that were divided into Capoeira Group (CPG, n¼28) and Control Group (COG, n¼23) (meanstandard deviation for CPG: 26.65.5 years old, weight 78.25.70kg and height 1.70.06m). Capoeira practitioners were evaluated with surface electromyography (Miotec Ò ) and an iso- kinetic dynamometer (Biodex Ò ). The isokinetic protocol involved concentric contractions for knee flexion and extension at 60  /s with 5 repetitions, respectively. Electromyographic (EMG) data were collected simultaneously. NME was calculated by the ratio of myoelectrical activa- tion (average of the Root Mean Square – RMS signal) and the peak torque value generated by the muscle. Data were analyzed in SPSS software and we used a t-student test (a¼0.05). The Institutional Ethical Committee approved this study. Results: Peak torque normalized by body weight of the quadriceps muscle showed a significant difference only in the non-dominant limb (NDL), in which the CPG showed 272.8944.04%, while the COG of 226.9063.40%, p¼0.01. For the dominant limb (DL), the CPG was 276.5238.85%, while the GCO was 251.5750.54%, p>0.05. There was no significant difference in EMG, we found in DL 165.526.1mV for CPG and 157.437.2mV for COG, p>0.05. We observed 165.732.2mV for CPG and 158.633.9mV for the GCO in NDL; p>0.05. We found a significant difference in NME only for NDL, in which the CPG was of 0.70.2mV/Nm, while the COG was of 0.80.2mV/Nm, p¼0.04. We observed 0.70.1mV/Nm for the CPG and 0.80.2mV/Nm for the COG in DL; p>0.05. Conclusion: Capoeira practitioners were stronger than control subjects only for NDL. The CPG presented great neuromuscular efficiency only for NDL. NEUROMUSCULAR DEFICITS IN YOUNG WOMEN WITH PATELLOFEMORAL PAIN SYNDROME COMPARED TO A CONTROL GROUP Camile Ludovico Zamboti 1 , Rubens Alexandre da Silva, Jr. 2 , Cynthia Gobbi 1 , Leonardo Shigaki 1 , Diogo Paschualeto 1 , Christiane Souza Guerino Macedo 1 . 1 Universidade Estadual de Londrina, Londrina, Brazil; 2 Universidade do Norte do Paraná (UNOPAR, LAFUP), Londrina, Brazil Introduction: Patellofemoral Pain syndrome (PFPS) is characterized by anterior knee pain with higher prevalence in women. The biomechanical * Corresponding author. Contents lists available at ScienceDirect Physical Therapy in Sport journal homepage: www.elsevier.com/ptsp http://dx.doi.org/10.1016/j.ptsp.2013.12.003 Physical Therapy in Sport 15 (2014) e1–e4