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Intermittent versus constant aerobic exercise in middle-aged males: acute effects on arterial stiffness and factors influencing the changes

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European Journal of Applied Physiology Aims and scope Submit manuscript

Abstract

Purpose

Both constant and intermittent acute aerobic exercises have been found to decrease arterial stiffness. However, direct comparisons of these two types of exercise are sparse. It is not known which type of exercise has the greatest effect.

Methods

We evaluated the haemodynamic responses in 15 males (age 48.5 ± 1.3 years; BMI 27.5 ± 0.8 kg m−2) following acute constant (CE) and intermittent cycling exercise (IE). Duration and heart rate were matched during both exercises (131.8 ± 3.2 bpm for CE and 132.0 ± 3.1 bpm for IE). Central and peripheral arterial stiffness was assessed through pulse wave velocity (PWV). Plasma concentrations of nitric oxide (NO), atrial natriuretic peptide (ANP), blood lactate, noradrenaline, and adrenaline were measured before and after each exercise.

Results

Central (+ 1.8 ± 7.4 and − 6.5 ± 6.8% for CE and IE) and upper limb PWV (+ 2.7 ± 6.2 and − 8 ± 4.6% for CE and IE) were not significantly altered although a small decrease (small effect size) was observed after IE. However, lower limb PWV significantly decreased after exercises (− 7.3 ± 5.7 and − 15.9 ± 4% after CE and IE), with a larger effect after IE.

Conclusions

Greater decrease in lower limb PWV occurred after IE despite greater heart rate. This may be due to the higher blood levels of lactate during IE, while NO, ANP, noradrenaline, and adrenaline levels remained not statistically different from CE. These results underlined the importance of lactate in triggering the post-exercise vascular response to exercise, as well as its regional characteristic.

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Abbreviations

ANOVA:

Analysis of variance

ANP:

Atrial natriuretic peptide

BP:

Blood pressure

CE:

Constant exercise

DBP:

Diastolic blood pressure

ECG:

Electrocardiogram

IE:

Intermittent exercise

HPLC:

High performance liquid chromatography

HR:

Heart rate

HRV:

Heart rate variability

MBP:

Mean blood pressure

NO:

Nitric oxide

PTT:

Pulse transit time

PEH:

Post-exercise hypotension

PWV:

Pulse wave velocity

PWVUL:

Pulse wave velocity upper limb

PWVLL:

Pulse wave velocity lower limb

rMSSD:

Root mean square of the successive differences

SBP:

Systolic blood pressure

SDNN:

Standard deviation of the r-r interval

SEM:

Standard error of the mean

TD:

Time delay

References

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Acknowledgements

The authors would like to thank the subjects for their time and enthusiasm. We also thank to National Council for Scientific and Technological Development (CNPq-Brazil) for the support, C. Capitan for technical assistance and F. Ecarnot for translation and editorial assistance. The research was supported by grants from the Ministry for Higher education, Research Innovation and from Tomsk Polytechnic University Competitiveness Enhancement Program grant, Project no. ВИУ-ИСГТ-108/2017-TPU CEP-HSTI-108/2017 and by a Young Investigator Grant (from the Region of Franche-Comté, France).

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Authors

Contributions

Conception of the study: LM., AM and NT designed the study and carried out the experiment of the presented idea and developed the theory. DP, LM, AM and NT analyzed data, DP, LM, AM, MB, BG, JR, and NT interpreted results of experiments. DP prepared figures. DP, LM, NT drafted, edited and revised manuscript but all authors contributed to the final version of the manuscript, provided critical feedback.

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Conflict of interest

The authors have no conflicts of interest to disclose.

Additional information

Communicated by Massimo Pagani.

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Cite this article

Peres, D., Mourot, L., Ménétrier, A. et al. Intermittent versus constant aerobic exercise in middle-aged males: acute effects on arterial stiffness and factors influencing the changes. Eur J Appl Physiol 118, 1625–1633 (2018). https://doi.org/10.1007/s00421-018-3893-0

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  • DOI: https://doi.org/10.1007/s00421-018-3893-0

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