Variability de la frequence cardiaque chez des gymnastes rythmiques prepuberes : effets d'un entrainement intensif Heart rate variability in prepubertal rhythmic gymnasts: effects of intensive training

摘要

Introduction. - The aim of the study was to access the effects of intensive training on autonomic nervous system in prepubertal gymnasts.Synthesis. - Ten gymnasts have been tested with an orthostatic test (stand test) before and after an intensive training (5 days). The responses of autonomic nervous system were studied with heart rate spectral analysis. Results showed an increase in sympathetic activity after training when vagal control was not modified. Blood pressure (mean, systolic, diastolic) and spontaneous baroreflex were not modified after intensive training.Conclusion. - Intensive training increased sympathetic activity. But it is difficult to show the impact of mental stress in this increase.