RESUMEN
Pontos-gatilho são nódulos musculares que podem desenvolver dor. A dor lombar é um importante problema de saúde pública e estudos apontam que todas as pessoas que sofrem de dor na coluna apresentam ponto-gatilho. Objetivo: Analisar o nível dor de pacientes com dor lombar aguda que quando assintomáticos apresentava pontos-gatilho latente, comparado com os níveis de dor de pacientes com dor lombar aguda que quando assintomáticos não apresentava pontos-gatilho. Método:96 indivíduos de ambos os sexos entre 18 -60 anos participaram de um estudo transversal com avaliador cego. Foram analisados o nível de dor, função, atividade física, cinesiofobia, algometria e mensurada a força do músculo glúteo máximo e médio do membro dominante e não-dominante, no memento que os participantes estavam assintomáticos e após desenvolverem dor lombar aguda. Para análise estatística consideramos valores de significância igual ou menor que 0,05. Resultados: Foi observado diferenças significativas entre os grupos na intensidade da dor (p=0,01), na funcionalidade (p=0,02), na algometria (p=0,00), na dinamometria do músculo glúteo máximo do membro não-dominante (p=0,05) e da dinamometria do glúteo médio do membro dominante (p=0,01) e não-dominante (p=0,00). Conclusão: Indivíduos assintomáticos com pontos-gatilho latente nos músculos paravertebrais lombares apresentam pior intensidade da dor e outros desfechos quando evoluem dor lombar aguda, comparados com indivíduos que não apresentam pontos-gatilho no momento que estão assintomáticos
Trigger points are muscle nodules that can lead to pain. Low back pain is an important problem of public health and studies point out all the people who suffer from spinal pain present trigger points. Objective: To analyze the pain level of the asymptomatic patients, with acute low back pain, who present latent trigger point, when compared to the pain level of the asymptomatic patients with acute low back pain who did not present latent trigger point. Method:96 individuals of both genres, aged 18 to 60 years took part in a transversal, evaluator-blind study. Level pain, function, physical activity, kynesiophobia, algometer were analyzed and the gluteus maximus and gluteus medius muscles' strength of the dominant limb and non-dominant were measured, at the moment the participants were asymptomatic and after developing acute back low pain. For statistical analysis, we considered significant value ≤ 0.05 Results: It was observed significant differences between the groups in relation to pain intensity (p=0.01), functionality (p=0.02), algometer (p=0.05), gluteus maximus muscle dynamometry of the non-dominant limb (p=0.05) and in the gluteus medius muscle of the dominant limb (p=0.01) and non-dominant (p=0.00). Conclusion: Asymptomatic individuals with latent trigger points in the paravertebral lumber muscles present worse pain intensity and other outcomes when it evolves to acute back pain if compared to individuals who don't present trigger points at the moment they, are considered asymptomatic.
RESUMEN
The objective of this study was to observe the immediate effect of a knee brace with a patellar hole versus without a patellar hole on pain perception in patients with knee osteoarthritis. To accomplish this, a double-blind, randomized controlled trial enrolled 108 patients divided into two groups (knee brace with a patellar hole or without a patellar hole). Patients were evaluated by the Visual Analogue Scale (VAS) in order to measure their pain sensation, the Timed Up and Go (TUG) test was used to evaluate their ability to walk, and the 8-m walking test (8MWT) was used to estimate their walking speed. Both groups presented significant reduction in pain perception, higher function of the lower extremities, and greater mobility while wearing a knee brace. However, the patients who wore a knee brace without a patellar hole presented more favorable results than those who wore a knee brace with a patellar hole: a 1.6-point reduction was found versus 1.1 points in the VAS, the patients presented 0.7 s less time versus 0.4 s in the TUG, and the speed was reduced by 1.4 s versus 0.8 s in the 8MWT. Therefore, the knee brace without a patellar hole presented more favorable results when compared with the knee brace with a patellar hole.
