Intense endurance training on heart rate and blood pressure variability in runners

Portier, H.; Louisy, F.; Laude, Dominique; Berthelot, M; Guezennec, C. Y.

doi:10.1097/00005768-200107000-00009

Cited by 77 publications

(73 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Exercise itself might have also a direct effect on the autonomic system. Reduction of sympathetic activity 46 and increased vagal activity 46,47 have been described after exercise. A decrease of sympathetic innervation leads to less vasoconstriction and consequently to a reduction of peripheral resistance.…”

Section: Discussionmentioning

confidence: 99%

Endurance Exercise Training in Orthostatic Intolerance

et al. 2005

View full text Add to dashboard Cite

Abstract-Orthostatic intolerance is a syndrome characterized by chronic orthostatic symptoms of light-headedness, fatigue, nausea, orthostatic tachycardia, and aggravated norepinephrine levels while standing. The aim of this study was to assess the protective effect of exercise endurance training on orthostatic symptoms and to examine its usefulness in the treatment of orthostatic intolerance. 2768 military recruits were screened for orthostatic intolerance by questionnaire. Tilt-table testing identified 36 cases of orthostatic intolerance out of the 2768 soldiers. Subsequently, 31 of these subjects with orthostatic intolerance entered a randomized, controlled trial. The patients were allocated randomly to either a "training" (3 months jogging) or a "control" group. The influence of exercise training on orthostatic intolerance was assessed by determination of questionnaire scores and tilt-table testing before and after intervention. After training, only 6 individuals of 16 still had orthostatic intolerance compared with 10 of 11 in the control group. The Fisher exact test showed a highly significant difference in diagnosis between the 2 groups (Pϭ0.008) at the end of the study. Analysis of the questionnaire-score showed significant interaction between time and group (Pϭ0.001). The trained subjects showed an improvement in the average symptom score from 1.79Ϯ0.4 to 1.04Ϯ0.4, whereas the control subjects showed no significant change in average symptom score (2.09Ϯ0.6 and 2.14Ϯ0.5, respectively). Our data demonstrate that endurance exercise training leads to an improvement of symptoms in the majority of patients with orthostatic intolerance. Therefore, we suggest that endurance training should be considered in the treatment of orthostatic intolerance patients.

show abstract

Section: Discussionmentioning

confidence: 99%

Endurance Exercise Training in Orthostatic Intolerance

et al. 2005

View full text Add to dashboard Cite

show abstract

“…According to some authors, sustained training alters HRV caused by a modification of vagal activity with increased parasympathetic modulations [25,28]. Another study demonstrates that autonomic balance would be one of the first to be affected in case of fatigue-induced homeostatic disturbance [29]. Plews et al [26] argued that HRV opens the door to effective monitoring of training adaptation.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Heart Rate Variability during an Endurance Mountain Trail Race by Multi-Scale Entropy Analysis

Vallverdú

Ruiz-Muñoz

Roca

et al. 2017

Entropy

View full text Add to dashboard Cite

Abstract:The aim of the study was to analyze heart rate variability (HRV) response to high-intensity exercise during a 35-km mountain trail race and to ascertain whether fitness level could influence autonomic nervous system (ANS) modulation. Time-domain, frequency-domain, and multi-scale entropy (MSE) indexes were calculated for eleven mountain-trail runners who completed the race. Many changes were observed, mostly related to exercise load and fatigue. These changes were characterized by increased mean values and standard deviations of the normal-to-normal intervals associated with sympathetic activity, and by decreased differences between successive intervals related to parasympathetic activity. Normalized low frequency (LF) power suggested that ANS modulation varied greatly during the race and between individuals. Normalized high frequency (HF) power, associated with parasympathetic activity, varied considerably over the race, and tended to decrease at the final stages, whereas changes in the LF/HF ratio corresponded to intervals with varying exercise load. MSE indexes, related to system complexity, indicated the existence of many interactions between the heart and its neurological control mechanism. The time-domain, frequency-domain, and MSE indexes were also able to discriminate faster from slower runners, mainly in the more difficult and in the final stages of the race. These findings suggest the use of HRV analysis to study cardiac function mechanisms in endurance sports.

show abstract

“…Some of the psychologic complaints may be attributable to lower waking blood pressure. Spectral analysis could be a means of demonstrating impairment of autonomic balance for the purpose of detecting a state of fatigue that could result in overtraining with a decrease in sympathetic vasomotor control (−18%) and a reduction in diastolic pressure (−3.2%) [103]. Smoking and overwork such as frequent business trips may amplify the autonomic dysfunction in relation to vital exhaustion (VE) among workers with a pronounced feeling of VE [104].…”

Section: Hrv and Fatiguementioning

confidence: 99%

Heart Rate Variability

Acharya

Joseph

Kannathal

et al.

Advances in Cardiac Signal Processing

165

172

View full text Add to dashboard Cite

During normal sinus rhythm, the heart rate (HR) varies from beat to beat. Heart rate variability (HRV) results from the dynamic interplay between the multiple physiologic mechanisms that regulate the instantaneous HR. It is believed that Heart Rate Variability (HRV) will become as common as pulse, blood pressure or temperature in patient charts in the near future. In the last ten years more than 2000 published articles have been written about HRV. HRV has been used as a screening tool in many disease processes. Various medical disciplines are looking at HRV. In diabetes and heart disease it has been proven to be predictive of the likelihood of future events. Physiological Phenomenon of HRVThe origin of heartbeat is located in a sino-atrial (SA) node of the heart, where a group of specialized cells continuously generates an electrical impulse spreading all over the heart muscle through specialized pathways and creating process of heart muscle contraction well synchronized between both atriums and ventricles. The SA node generates such impulses about 100-120 times per minute at rest. However in healthy individual resting heart rate (HR) would never be that high. This is due to continuous control of the autonomic nervous system (ANS) over the output of SA node activity. Its net regulatory effect gives real HR. In healthy subject at rest it is ranging between 50 and 70 beats per minute.The autonomic nervous system is a part of the nervous system that nonvoluntarily controls all organs and systems of the body. As the other part of nervous system ANS has its central (nuclei located in brain stem) and peripheral components (afferent and efferent fibers and peripheral ganglia) accessing all internal organs. There are two branches of the autonomic nervous system -sympathetic and parasympathetic (vagal) nervous systems that always work as antagonists in their effect on target organs.

show abstract

Intense endurance training on heart rate and blood pressure variability in runners

Cited by 77 publications

References 29 publications

Endurance Exercise Training in Orthostatic Intolerance

Endurance Exercise Training in Orthostatic Intolerance

Assessment of Heart Rate Variability during an Endurance Mountain Trail Race by Multi-Scale Entropy Analysis

Heart Rate Variability

Contact Info

Product

Resources

About