989 resultados para Síndrome da dor patelofemoral


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Fisioterapia - FCT

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FEHR, Guilherme Lotierso et al. Efetividade dos exercícios em cadeia cinética aberta e cadeia cinética fechada no tratamento da síndrome da dor femoropatelar. Revista Brasileira de Medicina do Esporte, [s.l], v. 12, n. 2, p.66-70, mar./abr. 2006. Bimestral. Disponível em: . Acesso em: 04 out. 2010.

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The Patellofemoral pain syndrome is defined as a fore or retro patellar pain and it has multifactorial etiology, where the bad patellar alignment is the most acceptable hypothesis. However proximal factors to the knee, as the debility of the muscles of the hip, have been demonstrated as a contributing factor to the appearing of that syndrome. Purpose: To evaluate if exists a relation between the hip muscles performance and the development of the SDPF. Methods: Thirty women took part in this study. They were divided in two groups; a control group (fifteen asymptomatic subjects) and an experimental group (fifteen subjects with the diagnosis of SDPF). The muscle performance was evaluated in an isokinetic dynamometer, where it was verified the peak torque (PT), PT to body weight, PT time and the agonist/antagonist relation. It was also analyzed the electromyographic activity of the middle gluteus. The data was analyzed by the not paired t test at a significance level of 5%. Results:. Didn t have significant difference to the PT of the abductor muscles (p = 0,46) and lateral rotators of the hip (p = 0,17) between groups. Also didn t have significant difference to the PT values by the body weight, to these muscle groups either (p = 0,10 e p = 0,11, respectively). Didn t have significant difference between the amplitude of the signal (p = 0,05) and the onset of medium gluteus (p = 0,25) between the groups. Conclusion: In the experimental conditions realized, the study didn t demonstrate a relation between performance the hip muscles behavior and the development of the SDPF

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Patellofemoral pain syndrome (PFPS) is described as anterior or retropatellar pain knee in the absence of other pathologies and is frequently associated with dysfunction of the vastus medialis oblique (VMO). However, several studies have demonstrated the inability to selectively activate this muscle through exercise. To evaluate the effect of Neuromuscular Electrical Stimulation (NMES) selective VMO in women with syndrome. We evaluated thirty-eight women: twenty in the control group (24.15 ± 2.60 years) and eighteen diagnosed with PFPS (25.56 ± 3.55 years). Both groups were evaluated before and after a protocol of electro stimulation. To measure for comparing groups before and after treatment, we assessed the extensor torque concentric and eccentric knee through an isokinetic dynamometer, the intensity (Root Mean Square - RMS) and the onset of activation (onset) of VMO compared to the vastus lateralis (VL) in two types of exercise: open and closed kinetic chain. . Statistical analysis was performed using SPSS 15.0, with a significance level of 5%. Results: Our data showed an increase in the intensity of activation (RMS) of the VMO muscle after NMES in both study groups. During concentric contraction the RMS of the VMO before the NMES was 105.69 ± 32.26 μV and after a single intervention was 122.10 ± 39.62 μV (p = 0.048) for the control group. In the group with PPS, we found a similar behavior, with RMS of the VMO before NMES of 96.25 ± 18.83 μV and 139.80 ± 65.88 μV after the intervention (p = 0.0001). However, there was no evidence in the RMS value of VL muscle. The onset was calculated by subtracting the onset of VL by the onset of VMO. For the group with PFPS, the onset before the intervention was -0.007 ± 0.14 ms, indicating a delay of the VMO relative to VL, and after NMES was 0.074 ± 0.09 ms (p = 0.016), showing an activation previous VMO to VL. The same occurred for the control group. We also observed that NMES increased knee extensor power during the concentric contraction in both groups. Before the intervention the mean power was 28.97 ± 9.01 W for the PPS group and after NMES was 34.38 ± 7.61 W (p = 0.0001). Conclusion: We observed an increase in electromyographic activity of the VMO and also an anticipatory effect of this muscle

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INTRODUÇÃO: A síndrome de dor femoropatelar (SDFP) é um problema comum que afeta uma em cada quatro pessoas. A alteração no tempo de ativação e a intensidade de contração dos músculos vasto medial oblíquo (VMO) e vasto lateral (VL) são consideradas fatores importantes na etiologia da SDFP. No entanto, existem poucos estudos sobre a função da porção oblíqua do vasto lateral (VLO) e nenhum sobre o tempo de ativação (onset) do VLO em atividades funcionais em sujeitos normais e com SDFP. OBJETIVO: Assim, o objetivo do estudo foi investigar o tempo de início de atividade eletromiográfica nos músculos VMO, VLO e VL longo (VLL) durante a marcha. MATERIAIS E MÉTODOS: A amostra foi formada por 15 sujeitos sem e 12 com SDFP. Dados eletromiográficos foram obtidos dos músculos VMO, VLL e VLO durante caminhada na esteira sem inclinação. A diferença relativa no onset (DRO) entre VMO-VLL e VMO-VLO foi determinada a partir da média de três passadas. RESULTADOS: Houve diferença entre os sujeitos com e sem SDFP em relação à DRO entre VMO-VLL. Nos sujeitos com SDFP, a ordem de início da atividade elétrica foi VLL seguida por VLO e após VMO. Nos indivíduos sem a patologia, a ordem foi diferente: primeiro VMO após VLO e, por último, VLL. CONCLUSÃO: Os achados sugerem que a ativação do VMO após o VLL poderia auxiliar no desenvolvimento e na manutenção da SDFP, enquanto o tempo de ativação do VLO possui menor participação.

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FEHR, Guilherme Lotierso et al. Efetividade dos exercícios em cadeia cinética aberta e cadeia cinética fechada no tratamento da síndrome da dor femoropatelar. Revista Brasileira de Medicina do Esporte, [s.l], v. 12, n. 2, p.66-70, mar./abr. 2006. Bimestral. Disponível em: . Acesso em: 04 out. 2010.

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FEHR, Guilherme Lotierso et al. Efetividade dos exercícios em cadeia cinética aberta e cadeia cinética fechada no tratamento da síndrome da dor femoropatelar. Revista Brasileira de Medicina do Esporte, [s.l], v. 12, n. 2, p.66-70, mar./abr. 2006. Bimestral. Disponível em: . Acesso em: 04 out. 2010.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)