Exercise-induced plasma volume expansion and post-exercise parasympathetic reactivation

Buchheit, Martin; Laursen, Paul B.; Haddad, Hani Al; Ahmaidi, Saïd

doi:10.1007/s00421-008-0925-1

Cited by 90 publications

(90 citation statements)

References 46 publications

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“…Acute increases in PV have been accompanied by reduced HR during sub-maximal exercise Garrett et al 2012;Lorenzo et al 2010;Racinais et al 2014), increased HRV at rest and during immediate post-exercise recovery (Buchheit et al 2009), but not HRR (Buchheit et al 2009;Buchheit et al 2011). Notably, changes in HR-based measures during heat acclimation appear more likely a consequence of expanded PV rather than changes in fitness/fatigue .…”

Section: Discussionmentioning

confidence: 99%

“…4b). The reduction in HRR 60s was likely not related to changes in PV (Buchheit et al 2009;Buchheit et al 2011), but rather due to the relative reduction in training load during the sauna exposure period (Borresen and Lambert 2007). The reasons for the lack of substantial change in HR postex and ln rMSSD postex ( Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Heart rate based measures may provide a simple, non-invasive tool to monitor changes in PV that are expected with sauna bathing (Buchheit 2014;Stanley et al 2013b). For example, following traditional heat acclimation (accompanied with PV expansion), HR during Garrett et al 2012;Lorenzo et al 2010) sub-maximal exercise is reduced, HR variability (HRV) at rest ) and during immediate post-exercise recovery (Buchheit et al 2009) is increased, while HR recovery (HRR) is unaffected (Buchheit et al 2009;Buchheit et al 2011). Changes in the aforementioned HR measures also demonstrate moderate-to-very large correlations with increased PV (Buchheit et al 2009;Buchheit et al 2011) and improvements in exercise performance (Buchheit 2014;Buchheit et al 2013;Buchheit et al 2011;Racinais et al 2014).…”

Section: Introductionmentioning

confidence: 94%

“…For example, following traditional heat acclimation (accompanied with PV expansion), HR during Garrett et al 2012;Lorenzo et al 2010) sub-maximal exercise is reduced, HR variability (HRV) at rest ) and during immediate post-exercise recovery (Buchheit et al 2009) is increased, while HR recovery (HRR) is unaffected (Buchheit et al 2009;Buchheit et al 2011). Changes in the aforementioned HR measures also demonstrate moderate-to-very large correlations with increased PV (Buchheit et al 2009;Buchheit et al 2011) and improvements in exercise performance (Buchheit 2014;Buchheit et al 2013;Buchheit et al 2011;Racinais et al 2014). Most importantly however, because the magnitude of HR responses after just one day in the heat are similar to those expected after a month of normal training , changes in HR-based measures during heat acclimation appear more likely a consequence of expanded PV rather than actual changes in fitness/fatigue.…”

Section: Introductionmentioning

confidence: 99%

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Effect of sauna-based heat acclimation on plasma volume and heart rate variability

et al. 2014

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Anthony S. (2015) Effect of sauna-based heat acclimation on plasma volumeand heart rate variability. European Journal of Applied Physiology, 115 (4). pp. immediately following normal training. Capillary blood samples were collected to assess PV changes while resting seated. HR (HR wake ) and vagal-related HR variability (natural logarithm of square-root mean squared differences of successive R−R intervals, ln rMSSD wake ) were assessed daily upon waking. A sub-maximal cycle test (5 min at 125 W) was performed on days 1, 8, 15, 22, 25, 29, and 35 and HR recovery (HRR 60s ) and ln rMSSD postex were assessed post-exercise. Effects were examined using magnitude-based inferences. Conclusions: Sauna-bathing following normal training largely expanded PV in well-trained cyclists after just 4 Resultsexposures. The utility of HR and HRV indices for tracking changes in PV was however uncertain. Future studies will clarify mechanisms and performance benefits of post-training sauna bathing.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Effect of sauna-based heat acclimation on plasma volume and heart rate variability

et al. 2014

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“…The bradycardia observed in the recovery period after exercise seems to depend on a joint action of the sympathetic and parasympathetic branches of the ANS [41,52] . After the physical exertion, there is a fast vagal reactivation, and in individuals with better resting parasympathetic modulation this recovery is done faster and more efficient [53][54][55] .…”

Section: Acute Effect Of Resistance Exercise (Efr) On the Hr And The mentioning

confidence: 96%

Resistance Training and Autonomic Modulation in the Elderly

Silva

Chagas

Rodrigues

et al. 2016

Journal of Cardiology and Therapy

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We performed a review of acute and chronic effects of resistance training on the heart rate and cardiac autonomic regulation in the elderly. A systematic review of the literature was performed in June 2015 using MEDLINE, COCHRANE LIBRARY and PUBMED databases. The following combination of keywords, followed by the Clinical Trial filters, Humans, English, and Age ≥ 45 years were used for search of relevant manuscripts: Heart rate variability and exercise (259 articles); Heart rate variability and exercise and elderly (259 articles); Heart rate and Resistance training and elderly (170 articles); Heart rate variability and Resistance training (22 articles); Heart rate variability and Resistance training and elderly (22 articles); Cardiac autonomic modulation and Resistance training and elderly (8 articles). We reported that although some results did not point to benefic chronic effects of resistance exercise on HRV, others presented different data.

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Improbable effect of carbohydrate diet on cardiac autonomic modulation during exercise

Buchheit

Méndez-Villanueva

2010

Eur J Appl Physiol

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We read with interest the recent study by Lima-Silva et al. (2009), which describes the effect of carbohydrate (CHO) availability on heart rate (HR) variability (HRV) during moderate and severe exercise intensities until exhaustion. While we congratulate the authors for having conducted a nice experiment, we wish to comment on the methodology used to examine HRV, to discuss the plausibility of their conclusions and also the interpretation that it is possible, using their measurements, to consider the mechanic versus autonomic determinants of HRV during exercise. Also the practical applications of the present findings remain obscure to us.First, it is worth mentioning that the interactions between the pulmonary and the autonomic nervous systems, known as the respiratory sinus arrhythmia phenomenon (Hayano et al. 1996), and their resultant impact on HRV indices, are exercise intensity-dependent. Second, exercise-induced changes in sympathetic-and vagal-related HRV indices display different time courses. And third, exercise intensity does not affect absolute [in power spectral density (PSD, ms 2 ) or in ms] and normalized [accounting for the total PSD or variance, in normalized unit (n.u.) or %] HRV indices in a similar fashion. Several authors [e.g. (Blain et al. 2005b;Cottin et al. 2006;Buchheit et al. 2007;Cottin et al. 2007)] have depicted two objective 'tipping points' [i.e., the first (VT1) and second (VT2) ventilatory threshold] which clearly demarcate three distinct exercise-intensity domains (i.e., below VT1, between VT1 and VT2 and above VT2, Fig.

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Exercise-induced plasma volume expansion and post-exercise parasympathetic reactivation

Cited by 90 publications

References 46 publications

Effect of sauna-based heat acclimation on plasma volume and heart rate variability

Effect of sauna-based heat acclimation on plasma volume and heart rate variability

Resistance Training and Autonomic Modulation in the Elderly

Improbable effect of carbohydrate diet on cardiac autonomic modulation during exercise

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