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Physically active men present a healthier cardiometabolic profile in response to a balanced meal compared to inactive men

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Abstract

Purpose

Post-meal cardiometabolic responses are critical for health, and may be influenced by physical activity. The objective of this study was to investigate the effect of habitual physical activity level on the metabolic, autonomic nervous system and cardiovascular responses to a balanced meal in healthy men.

Methods

12 active and 12 inactive healthy males, matched for age and body composition, attended the laboratory in fasting condition. Participants were asked to sit quietly and comfortably in an armchair for the whole duration of the experiment (~ 2h30). Metabolic, autonomic nervous system and cardiovascular measurements were performed in fasting conditions, and at regular intervals until one hour after the end of a balanced breakfast.

Results

No significant difference was observed between groups in glycaemia or energy expenditure throughout the experiment. Fat oxidation rate was significantly higher one-hour post-meal in active vs inactive men (Respiratory Quotient: 0.78 ± 0.04 vs 0.88 ± 0.03; p < 0.01). Heart rate was significantly lower in active compared to inactive individuals (p < 0.001) throughout the experiment and active participants displayed significantly enhanced vagal tone one-hour post-meal (square root of the sum of successive differences between adjacent normal R–R intervals squared: 72.4 ± 27.9 vs 46.4 ± 14.1 ms; p < 0.05).

Conclusion

In healthy men, habitual physical activity level seems discriminant to decipher specific profiles in terms of cardiometabolic responses to a meal. Overall, it may suggest pre-signal cardiometabolic impairments in healthy inactive individuals and highlight the need to consider primary prevention in inactive subjects as a key factor for health management.

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Availability of data and materials

The data that support the findings of this study are available on request from the corresponding author [LI].

Abbreviations

ANS:

Autonomic nervous system

AUC:

Area under the curve

CHO:

Carbohydrates

CO:

Cardiac output

DAP:

Diastolic arterial pressure

HR:

Heart rate

HRV:

Heart rate variability

MAP:

Mean arterial pressure

MVPA:

Moderate-to-vigorous physical activity

NIRS:

Near infrared spectroscopy

PAL:

Physical activity level

RMSSD:

Square root of the sum of successive differences between adjacent normal R–R intervals squared

RQ:

Respiratory quotient

SAP:

Systolic arterial pressure

SD:

Standard deviation

SVR:

Systemic vascular resistance

TSI:

Tissue saturation index

VCO2 :

Carbon dioxide production

VO2 :

Oxygen consumption

References

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Acknowledgements

The authors thank all individuals who participated in this study and Fiona Ecarnot for editorial assistance.

Funding

This research was supported by the Universities of Franche-Comté and Clermont Auvergne and Tomsk Polytechnic University development Programme.

Author information

Authors and Affiliations

Authors

Contributions

GE, LMt and LI conceived and designed the experiments. GE and LI performed the experiments and collected the data. GE and LI performed the analysis. All authors contributed to the interpretation of the data. LI wrote the first draft and edited the manuscript. All authors contributed to the manuscript revision and have read and agreed to the published version of the manuscript.

Corresponding author

Correspondence to Laurie Isacco.

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Conflicts of interest

The authors declare that there is no conflict of interest.

Additional information

Communicated by Massimo Pagani.

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Supplementary Information

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Supplementary file1 (DOCX 18 KB)

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Cite this article

Ennequin, G., Thivel, D., Mourot, L. et al. Physically active men present a healthier cardiometabolic profile in response to a balanced meal compared to inactive men. Eur J Appl Physiol 123, 283–297 (2023). https://doi.org/10.1007/s00421-022-05067-2

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  • DOI: https://doi.org/10.1007/s00421-022-05067-2

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