Dataset Information

Generalized Poincare plots analysis of heart period dynamics in different physiological conditions: Trained vs. untrained men.

ABSTRACT:

Background

Recently we proposed a new method called generalized Poincaré plot (gPp) analysis which gave a new insight into the pattern of neurocaridac control. In this study we examined potential of gPp method to reveal changes in cardiac neural control in young athletes during three conditions: supine rest, running and relaxation, with respect to untrained subjects.

Methods

This method is based on the quantification of Pearson's correlation coefficients r(j, k), between symmetrical (j = k) and asymmetrical summed j previous and k following RR intervals up to the 100th order (j,k?100).

Results

Differences between groups were obtained at all levels of this analysis. The main result is the significant difference of NAI, normalized index of asymmetry, between groups in running, which was originated in different positions of local maxima of r(j, k). Compared with untrained subjects, these findings indicate modified neural control and altered intrinsic heart rate behavior in athletes which are related to some kind of memory mechanism between RR intervals.

Conclusion

Obtained results provide great potential of gPp method analysis in the recognition of changes in neurocardiac control in healthy subjects. Further studies are needed for identification of altered cardiac regulatory mechanisms whose background may be useful in the evaluation of genesis of athletes neurocardiovascular pathology.

SUBMITTER: Platisa MM

PROVIDER: S-EPMC6611602 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Publications

Generalized Poincaré plots analysis of heart period dynamics in different physiological conditions: Trained vs. untrained men.

Platiša Mirjana M MM Bojić Tijana T Mazić Sanja S Kalauzi Aleksandar A

PloS one 20190705 7

<h4>Background</h4>Recently we proposed a new method called generalized Poincaré plot (gPp) analysis which gave a new insight into the pattern of neurocaridac control. In this study we examined potential of gPp method to reveal changes in cardiac neural control in young athletes during three conditions: supine rest, running and relaxation, with respect to untrained subjects.<h4>Methods</h4>This method is based on the quantification of Pearson's correlation coefficients r(j, k), between symmetric ...[more]

PMID: 31276529

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