Fatiga del sistema nervioso mediante umbrales Flicker Fusion después de una prueba de ultrarresistencia por relevos de 200 km. (Fatigue of the nervous system through Flicker Fusion thresholds after a 200 km ultra-endurance relay event).
DOI:
https://doi.org/10.12800/ccd.v5i13.64Abstract
La investigación en pruebas de ultrarresistencia se ha centrado en el estudio de la respuesta orgánica a través del estudio de diversos parámetros fisiológicos y de composición corporal. El estudio de la influencia en la función cognitiva y el sistema nervioso central no se ha abordado en estas especialidades aunque diversos autores han estudiado la fatiga del sistema nervioso central en sujetos desentrenados y ante diferentes estímulos de ejercicio (Davranche & Audifren, 2004; Gibson & Noakes, 2004; Presland et al., 2005) mediante los Umbrales Flicker Fusion (UFF). El presente estudio pretende estudiar los cambios en los umbrales Flicker Fusion antes y después de realizar una prueba de ultrarresistencia por relevos de 200 km, como medio para valorar la fatiga del sistema nervioso central. La muestra la componen 7 corredores (33±6,9 años; 172,6±3 cm; 69,3±8,7 kg; 23,2±1,7 kg/m²; 13,0±2,6% grasa). Previo a la prueba y al finalizar el último relevo de cada corredor, se realizaron las mediciones de los UFF, cada sujeto realizó el test de UFF en tres ocasiones. Los resultados muestran cómo los UFF aumentan después de la prueba aunque no significativamente. Con estos resultados podemos concluir que una prueba de ultrarresistencia por relevos de 200 km no parece que genere fatiga en el Sistema Nervioso Central medida con el sistema Flicker Fusion, ni altere la función cognitiva al no modificarse los UFF.
Palabras clave: sistema nervioso central, fatiga, umbrales Flicker Fusion, ultrarresistencia, carrera a pie.
===
Abstract
Research about ultra-endurance events has focused on the study of the organism’s response to these events through the study of various physiological parameters and body composition. The study of the influence on cognitive function and the central nervous system has not been measured in these specialties, although various authors have studied central nervous system fatigue in untrained subjects and while executing different types of exercise (Davranche & Audifren, 2004, Gibson & Noakes, 2004; Presland et al, 2005) using the Flicker Fusion Threshold (UFF). This study attempts to study changes in Flicker Fusion Thresholds before and after running a 200 km ultra-endurance relay as a means to assess the central nervous system fatigue. The sample was composed of seven runners (33 ± 6.9 years, 172.6 ± 3 cm, 69.3 ± 8.7 kg, 23.2 ± 1.7 kg / m²; 13.0 ± 2.6% fat). Before the event and after each subject’s last relay, runners performed the UFF test, and each subject performed the UFF test three times. The results show how the UFF increased after the event but not significantly. With these results we conclude that a 200 km ultraendurance relay event does not generate fatigue in the central nervous system as measured by Flicker Fusion, nor does it alter cognitive function as the UFF does not change.
Key words: central nervous system, fatigue, flicker fusion threshold, ultra-endurance, race.
Downloads
How to Cite
Issue
Section
License
The authors who publish in this journal agree with the following terms:
- The authors retain the copyright and guarantee the journal the right to be the first publication of the work as well as licensed under a Creative Commons Attribution License that allows others to share the work with recognition of the authorship of the work and the initial publication in this journal.