These results suggest that low-intensity swimming training inhibits lung neutrophilic inflammation, but not remodeling and impaired lung mechanics, in a model of LPS-induced acute lung injury.
This study analyzes the performance of knee extension and flexion of Taekwondo and Kickboxing athletes. The power values were extracted through electromyography obtained by an isokinetic dynamometer at 60 degrees per second. These values are resulted from the square of the electromyography signal. The analysis of kick power was made using a modified wavelet algorithm considering values with 95% significance. Both groups presented equivalent power and torque capacity with different training times and experience, on the other hand, the wavelet analysis showed better results in muscular recruitment performance in athletes with more experience, in other words, power is not only performance but also power plus recruitment produces better results. This study uniquely showed that muscular enhancement capacity is not only related to the power capacity of contraction but also to motor coordination.
Estudos recentes sugerem que a suplementação de creatina pode interferir com a captação de glicose e a produção de lactato durante a atividade física. O objetivo deste estudo foi investigar os efeitos da suplementação aguda (5g.kg¹ durante uma semana) e crônica (1g.kg¹ durante oito semanas) de creatina sobre as concentrações sanguíneas de glicose e lactato de ratos sedentários e exercitados (natação a 80% da carga máxima tolerada). Setenta e dois ratos Wistar machos (240 ± 10g) foram utilizados e divididos igualmente em quatro grupos experimentais (n = 18): CON - ratos sedentários não suplementados; NAT - ratos exercitados não suplementados; CRE - ratos sedentários e suplementados; CRE + NAT - ratos exercitados e suplementados. As amostras sanguíneas foram obtidas antes e após o teste de determinação da carga máxima realizado semanalmente durante todo o experimento. Antes do teste de carga máxima, com exceção do grupo CRE-NAT (3-5 semanas), que apresentou concentrações plasmáticas de glicose inferiores em relação os demais grupos, todos os outros resultados foram semelhantes entre os grupos experimentais. Após o teste de carga máxima todos os grupos experimentais apresentaram redução das concentrações plasmáticas de glicose e aumento das concentrações plasmáticas de lactato. Contudo, em relação à glicose, esta redução foi significativamente (p < 0,05) pronunciada nos grupos CRE (1-4 semanas) e CRE + NAT (1-8 semanas) e, em relação ao lactato, o aumento foi significativamente (p < 0,05) menor nos grupos CRE (1-2 semanas) e CRE + NAT (1-8 semanas). Os achados deste estudo sugerem que o regime adotado de suplementação influenciou o perfil metabólico glicêmico, minimizou o acúmulo de lactato e potencializou a máxima carga suportada nos animais suplementados.
The purpose of this study was to establish a possible correlation between systemic hypermobility and temporomandibular hypermobility during pregnancy. One hundred (100) healthy pregnant women were evaluated: 7% in the first trimester (1T), 38% in the second trimester (2T), and 55% in the third trimester (3T) of gestation. In the series, the authors analyzed systemic joint hypermobility (SJH), range of mandibular movement (MMR), head and shoulder posture, head lateralization, and the presence of noise, pain, and parafunction in the temporomandibular joint. They observed that pain is present to a mild degree mostly in the head and ears of all pregnant women who presented with pain. Most of the subjects had some type of parafunction, but only 42.8% had noises. Mild SJH was seen in 50% of the 2T and 3T subjects, and in 28.5% of 1T subjects. Mild mandibular hypermobility was found for jaw opening (46%) and lateralization to the right (44%) or to the left (46%). Most of the subjects had hypomobility for jaw protrusion and retraction. The subjects had head protrusion and anterior posture as a result of the change in their center of gravity brought about by pregnancy. The authors found no association between systemic joint hypermobility (SJH) and temporomandibular hypermobility, although hormonal changes and complex factors during pregnancy may represent a risk factor for both types of mobility change.
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