Heart rate dynamics during long-term space flight: Report on Mir cosmonauts

Goldberger, Ary L.; Bungo, Michael W.; Baevsky, R. M.; Bennett, Barbara S.; Rigney, David R.; Mietus, Joseph E.; Nikulina, G. A.; Charles, John B.

doi:10.1016/0002-8703(94)90033-7

Cited by 36 publications

(28 citation statements)

References 5 publications

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“…This means that cardiac autonomic modulation during spaceflight mimics the vagal predominance of the supine position. This is in agreement with previous Neurolab missions [24,30]. These results point to the advantage of the methods of HRV, being able to demonstrate vagal-cardiac dominance, while experiments measuring MSNA have found increased sympathetic activity during spaceflight, both in baseline conditions and during stress tests [15,16,24].…”

Section: Effects Of Microgravity On Cardiovascular Functionsupporting

confidence: 91%

“…In space, most studies agree on diminished vagal baroreflex gain together with an increase in vagal heart rate control [13,24], which is probably due to an increase in stroke volume (SV) in the first days of spaceflight [31,33]. At the same time however, muscle sympathetic nerve activity (MSNA) has been shown to be higher in microgravity, as demonstrated with lower body negative pressure (LBNP) experiments, Valsalva manoeuvres, handgrip and cold pressor tests [13,22,17,15].…”

Section: Introductionmentioning

confidence: 93%

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Cardiovascular autonomic control after short-duration spaceflights

Beckers¹,

Verheyden²,

Liu³

et al. 2009

Acta Astronautica

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Section: Effects Of Microgravity On Cardiovascular Functionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 93%

Cardiovascular autonomic control after short-duration spaceflights

Beckers¹,

Verheyden²,

Liu³

et al. 2009

Acta Astronautica

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“…It should be noted that the method was designed by space cardiologists and first applied in early orbital flights of animals and humans. HRV was tested in different disciplines of medicine and physiology and now is broadly applied in researches of autonomic regulation and stress level [10][11][12][13]. Finally, the third argument for choosing DT and giving priority to HRV is that they offer the opportunity to perform intimate evaluation of the functional state of organism leaning upon knowledge about the sequence in which levels and mechanisms of regulation are mobilized.…”

Section: Evaluation Of Health Levelmentioning

confidence: 99%

Pre-nosology diagnostics

Baevsky¹,

Berseneva²

2017

Cardiometry

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The present paper deals with prenosological diagnostics as methodology of an esti mation of functional states of an organism. Highlighted is its first practical application in space medicine, at long influence of stressful factors, including such factor unusual to terrestrial organisms as weightlessness. Demonstrated is the methodology's wide recognition and use in various areas of medicine and physiology. Health is consid ered herein as process of the continuous adaptation of an organism to environment conditions. Thus, shown is the connection between transition from health to illness and decrease in adaptable possibilities. Transition from health to illness, an exhaus tion and failure of mechanisms of adaptation are described in detail. The classifi cation dividing the prenosological states into physiological norm, prenosological, premorbid and pathological states is used herein. Prenosological studies including diagnostics, screening and control are considered.

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“…To test the robustness of our results, we also analyzed 17 datasets from six cosmonauts under conditions of microgravity during a long-term orbital flight on the Mir space station [92]. Each dataset contained continuous six-hour periods of data under both sleep and wake conditions.…”

Section: Sleep-wake Scaling Differences In Human Heartbeat Dynamicsmentioning

confidence: 99%

Multiscale aspects of cardiac control

Ivanov

Chen

et al. 2004

Physica A: Statistical Mechanics and its Applications

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We report some recent attempts to understand the dynamics of complex physiologic fluctuations by adapting and extending concepts and methods developed very recently in statistical physics. We first review recent progress using wavelet-based multifractal analysis, magnitude and sign decomposition analysis and a new segmentation algorithm to quantify multiscale features of heartbeat interval series. We then investigate how heartbeat dynamics change with circadian influences and under pathologic conditions, and we discuss their possible relation to the underlaying cardiac control mechanisms. The analytic tools we discuss may be used on a wider range of physiologic signals. r

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Heart rate dynamics during long-term space flight: Report on Mir cosmonauts

Cited by 36 publications

References 5 publications

Cardiovascular autonomic control after short-duration spaceflights

Cardiovascular autonomic control after short-duration spaceflights

Pre-nosology diagnostics

Multiscale aspects of cardiac control

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