The present study was performed to compare R-R interval data and heart rate variability indices obtained from the Polar S810i and the Omega Wave Sport System for a total of 96 adults in a supine position. Data were simultaneously recorded with the Polar S810i and the Omega Wave Sport System and processed by unique software. Bland-Altman analysis for the R-R intervals shows minimal bias for free and paced breathing. No significant differences were observed for heart rate variability indices derived from the signal from both devices, except for the power of the high frequency band and the acceleration changes index during either free or paced breathing. Coefficients of correlations were all above 0.96. These data suggest that both systems are valid to record R-R interval signals and to obtain a valid analysis of heart rate variability. However, Omega Wave Sport System enables data to be collected without any artifacts making the analysis of heart rate variability easier than the analysis of Polar S810i. Nevertheless, Polar S810i continues to be more practical in clinical and applied situations due to the affordability of the device.
The aim of the study was to examine the utility of perceived tiredness to predict cardiac autonomic response to overload among field hockey players during the 2006 World Cup. The French Society for Sports Medicine (SFMS) questionnaire was administered at the start of the Cup to evaluate perception of tiredness. Autonomic function was assessed nine days later at the semifinal match by time and frequency domain analysis of heart rate variability. An anxiety questionnaire was administered so that the effect of precompetitive anxiety on heart rate variability could be controlled. Results showed a negative correlation between perceived tiredness scores and time domain indexes, and a positive correlation of perceived tiredness scores and the high frequency component ratio (LF/HF ratio) of heart rate variability. Anxiety did not influence the precompetitive cardiac response despite somatic anxiety's correlation with sympathetic response (LF/HF ratio) and tiredness scores. Perceived tiredness predicted the autonomic cardiac response to competitive overload. Thus, the perceived tiredness assessment would be a good early marker of fatigue and overload states during competition.
ResumenEl presente trabajo tiene el objetivo de obtener indicadores del proceso de estrés-recuperación basados en los cambios que provoca el entrenamiento intenso en la relación entre la variabilidad de la frecuencia cardiaca (VFC) y variables cognitivas. Para ello, se evaluó el estado de ánimo, los signos tempranos relacionados al síndro-me de sobreentrenamiento y la VFC de los jugadores de la Selección Nacional Española de Hockey sobre Hierba. Los datos se recogieron durante el periodo de preparación Pre-Olímpica para Pekin 2008 en dos sesiones diferentes: (a) después de un periodo corto de descanso, y (b) después de un día de entrenamiento intenso. Los índices relacionados con la actividad parasimpática y con una elevada variabilidad de la frecuencia cardiaca correlacionaron negativamente con las puntuaciones del cuestionario estandarizado (CE) propuesta por la Sociedad Francesa de Medicina del Deporte (SFMS). Después del entrenamiento intenso, los parámetros de VFC relacionados con la actividad parasimpática decrecieron, a la vez que las puntuaciones de la subescala de fatiga del POMS incrementaron. Se propone un sistema de evaluación que, de manera simultánea, mida objetivamente -a través de la VFC-y subjetivamente -a través de cuestionarios-el proceso de estrés-recuperación de los jugadores de élite, a largo plazo -cuestionario CE; signos tempranos del síndrome de sobreentrenamiento o sobrecarga no funcional-y a corto plazo -cuestionario POMS; sobrecarga funcional-.Palabras Clave: Análisis de la Variabilidad de la Frecuencia Cardiaca, VFC, Sobrecarga, Sobreentrenamiento, Evaluación Psicológica. AbstractThe aim of this research was to obtain markers of the stress-recovery process based on the changes in heart rate variability and cognitive aspects due to strenuous training. Mood state, early signs of overtraining, and heart rate variability were evaluated in the Spanish National Hockey team players. Data were collected during a preparatory period for the Beijing 2008 Olympic Games on two separate occasions: (a) after a short recovery period, and (b) after a day of strenuous training. The indices related to the parasympathetic activity and to a high variability of heart rate were negatively correlated with the scores from the standardized questionnaire (CE) of the "Société Francaise de Médicine du Sport" (SFMS). After strenuous training, the vagal-related heart rate variability indices decreased, while fatigue subscale scores from the POMS increased. An evaluation method that can simultaneously provide objective (HRV) and subjective measures for the longterm stress-recovery process in elite players (early signs of overtraining or non-functional overtraining with a questionnaire (CE); and for the short-term stress-recovery process, functional overtraining with POMS) is proposed.
Desde el surgimiento de la Maestría en Arte en la Universidad Autónoma de Aguascalientes, las implementaciones artísticas derivadas de los trabajos prácticos profesionalizantes de estudiantes y proyectos de investigación artística de docentes del Núcleo Académico Básico son un muestrario de las inquietudes teóricas y metodológicas en torno a las prácticas de gestión, análisis, educación y producción artísticas contemporáneas. Esta publicación reúne cuatro textos sobre la productividad académica y artística contestarias a la atención de problemáticas y acciones sociales del contexto regional.
Introduction and objective:Information to explain the inter-individual variation of VO2max-cardiorespiratory fitness after training interventions is of great importance as regards health status. The main purpose of this study was to estimate whether the trait anxiety can influence cardiorespiratory fitness in controlled aerobic exercise training. Methods: Twelve students were divided into a progressive light-aerobic training group (g-PAT, n = 6) and a control group (g-CON, n = 6). VO2max was assessed at baseline and after a 6-week training period. Training consisted of three 30-min sessions a week with the intensity of 50---70% of HR reserve. Conclusion:The main findings of this study suggest that VO2max training response is not only determined by a VO2max genetic factor, but is also determined by trait anxiety. This is the first exploratory study to estimate the proportion of the trait anxiety associated with the physiological response to an aerobic exercise. We suggest that the trait anxiety is taken into account as an individual difference which could determine the efficacy of aerobic exercise programs in sedentary people. © 2011 Consell Català de l'Esport. Generalitat de Catalunya. Published by Elsevier España, S.L. All rights reserved. PALABRAS CLAVEVO2max-fitness cardiorrespiratorio; Actividad física; Ansiedad rasgo ¿Está relacionada la ansiedad rasgo con la mejora del fitness? Resumen Introdución y objetivo: La información que permita explicar la variación inter-individiual del VO2max-fitness cardiorrespiratorio después de las intervenciones de entrenamiento es de gran importancia en relación al estado de salud. El objetivo principal de este estudio fue estimar si el rasgo de ansiedad puede influir en el fitness cardiorrespiratorio a partir de un entrenamiento controlado de ejercicio aeróbico. * Corresponding author. E-mail address: juliocerva@hotmail.com (J.C. Cervantes). Método: Doce estudiantes fueron divididos en un grupo de entrenamiento aeróbico progresivo (g-PAT, n = 6) y en un grupo control (g-CON, n = 6). El VO2máx se evaluó antes y después de un período de entrenamiento de 6 semanas. El entrenamiento consistió en tres sesiones a la semana de 30 minutos con una intensidad de 50-70% de la FC de reserva. Resultados: El ANCOVA muestra un efecto significativo del grupo sobre el VO2 máx [F (1,8) = 5,362, p <0,05], con valores más altos en el g-PAT [36,45 (6,32)] en comparación con el g-CON [28,97 (6,38) Conclusión: Las principales conclusiones de este estudio sugieren que la respuesta al entrenamiento del VO2máx no sólo está determinada por factores genéticos sino también por la ansiedad rasgo. Este es un primer estudio exploratorio en estimar la proporción de la ansiedad rasgo en relación con la respuesta fisiológica a un ejercicio aeróbico. Sugerimos considerar la ansiedad rasgo como una diferencia individual que puede determinar la eficacia de los programas de ejercicio aeróbico en personas sedentarias.
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