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Seasonal variation of right heart function in elite skiers-racers: an echocardiographic study

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Abstract

Purpose

To examine seasonal variation of the right heart (RH) structure and function in elite skiers-racers.

Methods

The same group of 16 male was recruited into the study in the period of preparation for national competitions. The study was carried out at the hospital in Sykyvkar, the European North of Russia, which is located near 62° NL and 51° EL. The winter resting echocardiography study was performed in December 2017 (with the average temperature of − 7.8 °C) and the summer resting echocardiography study was performed in July 2018 (with the average temperature of + 23.8 °C).

Results

No significant difference was seen between the right atrium and ventricle dimensions in diastole in winter and summer (P > 0.05). In December both early diastolic peak filling velocity of the right ventricle (RV) and late atrial diastolic peak filling velocity of the RV were greater than that measured in July: 65 ± 7 vs. 56 ± 6 cm/s and 40 ± 6 vs. 34 ± 3 cm/s, respectively (P < 0.05). It was found out that blood flow ejection time at the root of pulmonary artery in winter was greater than in summer: 371 ± 27 vs. 345 ± 27 ms, respectively (P < 0.05). Regurgitation of blood flow in the tricuspid valve (from 1 to 1.5 grade or mild/moderate) was observed in all of the sixteen skiers studied.

Conclusion

The right heart functional adaptation to cold occurs in elite skiers-racers. The right heart intracardiac hemodynamics increased in winter time.

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Abbreviations

A:

Late atrial diastolic peak filling velocity of the right ventricle

ASE:

American Society of Echocardiography

AV:

Atrioventricular

BP:

Blood pressure

E:

Early diastolic peak filling velocity of the right ventricle

IVC:

Inferior vena cava

PADs:

Pulmonary artery diameter at the root in systole

PAET:

Blood flow ejection time at the root of pulmonary artery

PAV:

Blood flow velocity at the root of pulmonary artery

PGR:

Pressure gradient of regurgitation in tricuspid valve

RA:

Right atrium

RALDd:

Right atrium longitudinal dimension in diastole

RATDd:

Right atrium transverse dimension in diastole

RH:

Right heart

RV:

Right ventricle

RVDd:

Right ventricle maximal end-diastolic diameter

RVWTd:

Right ventricle wall thickness

SD:

Standard deviation

SPAP:

Systolic pulmonary artery pressure

TR:

Tricuspid regurgitation

TRV:

Tricuspid regurgitation velocity

References

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Funding

This study was performed in the framework of the Program for Fundamental Research of the Russian Academy of Sciences 2016–2021 (Project number AAAA-A16-116040110021-7).

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Authors and Affiliations

Authors

Contributions

Conceptualization, VP; methodology, VP and BD; formal analysis, VP and BD; investigation, VP, BD and VN; writing—original draft preparation, VP and BD; writing—review and editing, VP, BD and VN.

Corresponding author

Correspondence to Valentina Prosheva.

Ethics declarations

Conflict of interest

The authors declare no conflict of interest.

Ethics approval

The study protocol was approved by the ethics committee of the Institute of Physiology of the Komi Scientific Center of the Russian Academy of Sciences (Approval Number 38). The study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments.

Consent to participate

The written informed consent was obtained from all individual participants included in this study.

Consent for publication

All authors read and approved the final version of this manuscript.

Additional information

Communicated by Massimo Pagani .

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Cite this article

Dernovoj, B., Nuzhny, V. & Prosheva, V. Seasonal variation of right heart function in elite skiers-racers: an echocardiographic study. Eur J Appl Physiol 122, 1261–1268 (2022). https://doi.org/10.1007/s00421-022-04907-5

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  • DOI: https://doi.org/10.1007/s00421-022-04907-5

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