ABSTRACT
Abstract Introduction The neural mobilization technique in the sympathetic slump position (NMSS) was based on the slump test, whose purpose was to directly influence the sympathetic trunk and thus provide greater analgesia by sympathetic activation and treat pain syndromes caused by peripheral sympathetic changes. Therefore, as the autonomic nervous system (ANS) is responsible for extrinsic regulation of the cardiovascular system through sympathetic and parasympathetic action, the aim of this study was to investigate the influence of the NMSS technique on the systolic and diastolic blood pressure and heart rate variability in athlete and non-athlete men. Methods Twenty-eight subjects performed the procedure that was divided into three phases: rest; intervention and recovery, lasting 4 minutes and 30 seconds each, totaling a 13-minute and 30 seconds collection time. Results The results showed that the NMSS technique significantly influences the action/activity of the ANS, as there was predominant sympathetic activation during the application of the technique, which was observed by the increase in systolic blood pressure, low frequency (LF), LF/HF ratio and decreased values of high frequency (HF). Conclusion It may be concluded that the neural mobilization technique on the sympathetic slump (NMSS) significantly influences the ANS action/activity. Among the groups there was no statistically significant difference in heart rate variability. It is worth noting that patients with cardiovascular disorders may be at risk if the NMSS technique is applied, since there was an increase in SBP and sympathetic activation during its application in both groups.
ABSTRACT
Desde la aparición del estudio del cerebro a partir de las redes neuronales artificiales de McCulloch & Pitts (1965) y la arquitectura cerebral de Von Neumann(1951), la explicación científica de cómo significamos el mundo sentó sus bases en la metáfora de la mente entendida como cerebro-computador (Chomsky,1965). Aun cuando el intento de abordar la cuestión del significado desde esta perspectiva fue auspicioso, hoy es posible encontrar obstáculos asociados a laconcepción estática de la representación, requiriendo una perspectiva que conciba el cerebro como un constructor dinámico de significados (Varela, Thompson& Rosch, 2005). En este artículo presentamos una revisión de tres paradigmas experimentales que conciben la mente como un sistema dinámico espaciotemporal,donde la neurodinámica, el componente N400 y la neuroimagen son los más utilizados en la actualidad en el estudio del significado.
Since the emergence of the study of the brain from artificial neural networks McCulloch & Pitts (1965) and brain Von Neumann architecture (1951), the scien-tific explanation of how mean the world laid its foundations in the metaphor of the mind understood as brain-computer (Chomsky, 1965). Although the attempt to address the questionof meaning from this perspective was auspicious, it is now possible to find obstacles associated with static conception of representation, required a perspective that sees the brain as a dynamic builder of meanings (Varela, Thompson & Rosch, 2005). We present a review of three experimental paradigms which conceive the mind as a space-time, dynamic system where neurodynamics, the N400 component and neuroimaging are the most used today in the study of meaning.