Search

Accurate assessment of the performance of the human muscular system has been the object of scientists and practitioners of physical medicine and rehabilitation for many years.1-3 Evaluation of muscle strength is a common practice carried out by professionals and researchers. Few medical professionals have accurate measuring instruments, and almost in its entirety, the muscle strength tests are carried out manually by physicians, physiotherapists, physical educators, among others. The concern about the lack of quantitative data based on tests carried out by hand strength resulted in the development of instrumental forms of muscle testing, such as Jamar®, Kratos® and computerized isokinetic dynamometer Biodex®. These instruments have earned wide acceptance in clinical research of muscular strength evaluation.4 Rabin and Post5 performed a comparison between the evaluation by manual methods and the instrumental evaluation of the flexor moment and external rotator of the shoulder before and after surgery. It was found that applying the manual method time was rated higher, however, this increase was not evident when using the instrumental evaluation. Hsu et al6 indicated that increased muscle strength improves the functionality of the patient and suggested that the methods of muscle strength measurement should be accurate and reliable. Therefore, it is important equipments that assist in the accurate assessment of muscle strength and an experimental analysis of engineering possibilities. This analysis refers to applications where measurement provided by an instrument is designed to be used as a post-measurement for the determination of some parameters, models and / or validation.7 Measurement devices extend the possibilities of physical examination, particularly in the case of complex musculoskeletal problems during rehabilitation of patients with muscular weakness or restricted range of motion.8 The grip strength refers to any process that seeks to measure the forces, thus, the dynamometer is a type of equipment that measures the behaviour of the load and strain deformation of structures.9 The use of dynamometers to measure muscle strength has increased in recent decades and various types of instruments have been improved and made available for researchers.10 In a review conducted by Jaric11 on strength tests most studies involving muscle strength evaluation are performed using the lower limbs, suggesting new studies involving the upper limbs. There is little information available regarding the functional connections of the shoulder and wrist and the factors involved in its strength.12 Given the necessity of obtaining quantitative data in Biomechanics, it is necessary the design and development of equipments to measure the forces that interact with the locomotor system. Thus, the aim of this study was to evaluate a new device from our laboratory capable of measuring the strength generated by the muscles of the upper limbs and to compare the muscle strength of shoulder between dominant and non-dominant upper limbs in healthy subjects.

Made available in DSpace on 2015-02-24T13:58:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2014 BACKGROUND: Estudos anteriores sugerem que certos jogos de vídeo interativos induzem respostas cardiovasculares. No entanto, alguns estilos diferentes de jogos de vídeo nao foram investigados. OBJETIVO: Nosso objetivo foi avaliar as respostas cardiovasculares induzidas pelo video game desempenho boxe em mulheres saudáveis. MÉTODO: Foram avaliadas dez voluntárias sedentárias do sexo feminino, com idades de 20,9 ± 1,4 anos, peso 58,7 ± 8,0 kg, estatura 163,2 ± 5,4 cm. Todas foram pesadas e medidas. Suas frequências cardíacas, pressões arteriais e níveis de lactato foram registrados antes e depois de um jogo em vídeo game. As voluntárias jogaram um jogo de vídeo Sony (Nintendo ® Wii) usando a modalidade boxe, na qual todas jogaram por 10minutos ininterruptos. No final do jogo, as voluntárias foram reavaliadas utilizando os mesmos parâmetros mencionados acima. RESULTADOS: Ao final da performance de vídeo game boxe observamos aumentos altamente significativos de produção de lactato (p < 0.0035) e do duplo produto (frequência cardíaca versus pressão arterial sistólica) também foi maior (p < 0.0001). Ambos os parâmetros indicam que o desempenho aumentou a demanda de trabalho do sistema cardiovascular. CONCLUSÃO: Concluímos que uma performance de jogo de vídeo de boxe de dez minutos induz respostas cardiovasculares similares aos exercícios aeróbicos. Esta pode ser uma forma prática de exercício, mas cuidado deve ser exercido em relação a indivíduos com doenças cardiovasculares. BACKGROUND: Previous studies suggested that some interactive video games induce cardiovascular responses. However, some different styles of video games have not been investigated. OBJECTIVE: We aimed to evaluate cardiovascular responses induced by video game boxing performance in healthy women. METHOD: We evaluated ten female sedentary volunteers, aged 20.9 ± 1.4 years, weight 58.7 ± 8.0 kg, height 163.2 ± 5.4cm. All subjects were weighed and measured. Their heart rate, blood pressure and lactate levels were recorded before and after video game performance. The volunteers played a Sony video game (Nintendo® Wii) by using the boxing method, in which all volunteers played for 10 minutes without interruption. At the end of the game the volunteers were reassessed using the same parameters mentioned above. RESULTS: At the end of the video game boxing performance we observed highly significant increases of lactate production (p < 0.0035) and the double product (heart rate vs. systolic blood pressure) was also higher (p < 0.0001). Both parameters indicate that the performance increased demands of the cardiovascular system. CONCLUSION: We conclude that a ten-minute video game boxing performance induces cardiovascular responses similar to aerobic exercise. This may be a practical form of exercise, but care should be exercised concerning subjects with cardiovascular disorders. Departamento de Fonoaudiologia, Faculdade de Filosofia e Ciências, UNESP, Marília, SP, Brasil

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:25:57Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:41:51Z : No. of bitstreams: 1 2-s2.0-80053127755.pdf: 677404 bytes, checksum: 5b18c2e562bc204c9a8e4de7d0344e0f (MD5) Made available in DSpace on 2014-05-27T11:25:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-08-05 Background: The literature indicated that the majority of professional ballet dancers present static and active dynamic range of motion difference between left and right lower limbs, however, no previous study focused this difference in non-professional ballet dancers. In this study we aimed to evaluate active movements of the hip in non-professional classical dancers.Methods: We evaluated 10 non professional ballet dancers (16-23 years old). We measured the active range of motion and flexibility through Well Banks. We compared active range of motion between left and right sides (hip flexion and abduction) and performed correlation between active movements and flexibility.Results: There was a small difference between the right and left sides of the hip in relation to the movements of flexion and abduction, which suggest the dominant side of the subjects, however, there was no statistical significance. Bank of Wells test revealed statistical difference only between the 1st and the 3rd measurement. There was no correlation between the movements of the hip (abduction and flexion, right and left sides) with the three test measurements of the bank of Wells.Conclusion: There is no imbalance between the sides of the hip with respect to active abduction and flexion movements in non-professional ballet dancers. © 2011 Valenti et al; licensee BioMed Central Ltd. Laboratório de Escrita Científica Departamento de Morfologia e Fisiologia Departamento de Cirurgia Ortopédica Faculdade de Medicina do ABC, Av. Príncipe de Gales, 821, 09060-870, Santo André, SP Departamento de Medicina Disciplina de Cardiologia Universidade Federal de São Paulo (UNIFESP), Rua Napoleão de Barros 715 - Térreo, 04039-032, São Paulo, SP Departamento de Fisioterapia Faculdade de Ciências e Tecnologia UNESP, Rua Roberto Simonsen, 305, 19060-900 Presidente Prudente, São Paulo Departamento de Fonoaudiologia Faculdade de Filosofia e Ciências UNESP, Av. Higyno Muzzi Filho, 737, 17525-900 Marília, SP Escola de Artes Ciência e Humanidades da Universidade de São Paulo (USP), Av. Arlindo Béttio, 1000, 03828-000 São Paulo, SP Departamento de Fisioterapia Faculdade de Ciências e Tecnologia UNESP, Rua Roberto Simonsen, 305, 19060-900 Presidente Prudente, São Paulo Departamento de Fonoaudiologia Faculdade de Filosofia e Ciências UNESP, Av. Higyno Muzzi Filho, 737, 17525-900 Marília, SP

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:24:46Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:30:47Z : No. of bitstreams: 1 2-s2.0-84856093328.pdf: 276434 bytes, checksum: 3515e2c8082858530a70b1115456b50d (MD5) Made available in DSpace on 2014-05-27T11:24:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-08-03 Previous events evidence that sudden cardiac death (SCD) in athletes is still a reality and it keeps challenging cardiologists. Considering the importance of SCD in athletes and the requisite for an update of this matter, we endeavored to describe SCD in athletes. The Medline (via PubMed) and SciELO databases were searched using the subject keywords sudden death, athletes and mortality. The incidence of SCD is expected at one case for each 200,000 young athletes per year. Overall it is resulted of complex dealings of factors such as arrhythmogenic substrate, regulator and triggers factors. In great part of deaths caused by heart disease in athletes younger than 35 years old investigations evidence cardiac congenital abnormalities. Athletes above 35 years old possibly die due to impairments of coronary heart disease, frequently caused by atherosclerosis. Myocardial ischemia and myocardial infarction are responsible for the most cases of SCD above this age (80%). Pre-participatory athletes' evaluation helps to recognize situations that may put the athlete's life in risk including cardiovascular diseases. In summary, cardiologic examinations of athletes' pre-competition routine is an important way to minimize the risk of SCD. © 2010 Ferreira et al; licensee BioMed Central Ltd. Departamento de Clínica Médica Disciplina de Cardiologia, Núcleo de Saúde no Esporte Faculdade de Medicina do ABC, Santo André, SP Departamento de Morfologia e Fisiologia Faculdade de Medicina do ABC, Santo André, SP Departamento de Medicina Disciplina de Cardiologia Universidade Federal de São Paulo (UNIFESP), São Paulo, SP Departamento de Fisioterapia Universidade Estadual Paulista Campus de Presidente Prudente, Presidente Prudente, SP Departamento de Educação Física e Motricidade Humana Universidade Federal de São Carlos, São Carlos, SP Departamento de Fisioterapia Universidade Estadual Paulista Campus de Presidente Prudente, Presidente Prudente, SP