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Influence of the MCT1-T1470A polymorphism (rs1049434) on repeated sprint ability and blood lactate accumulation in elite football players: a pilot study

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Abstract

Purpose

The aim of this study is to investigate the influence of the MCT1 T1470A polymorphism (rs1049434) on repeated sprint ability (RSA) and lactate accumulation after RSA testing.

Methods

Twenty-six elite Italian male football players (age: 17.7 ± 0.78 years; height: 179.2 ± 7.40 cm; weight: 72.1 ± 5.38 kg) performed RSA testing (6 × 30-m sprints with an active recovery between sprints), and lactate measurements were obtained at 1, 3, 5, 7, and 10 min post-exercise. Genotyping for the MCT1 T1470A polymorphism was performed using PCR.

Results

Genotype distributions were in Hardy–Weinberg equilibrium, being 42% wildtype (A/A), 46% heterozygotes (T/A), and 12% mutated homozygotes (T/T). Significant differences between genotypic groups were found in the two final sprint times of the RSA test. Under a dominant model, carriers of the major A-allele (Glu-490) in the dominant model showed a significantly lower sprint time compared to footballers with the T/T (Asp/Asp) genotype (5th Sprint time: A/A + T/A = 4.60 s vs TT = 4.97 s, 95% CI 0.07–0.67, p = 0.022; 6th Sprint: A/A + T/A = 4.56 s vs T/T = 4.87 s, 95% CI 0.05–0.57, p = 0.033).

Conclusions

The T1470A (Glu490Asp) polymorphism of MCT1 was associated with RSA. Our findings suggest that the presence of the major A-allele (Glu-490) is favourable for RSA in football players.

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Abbreviations

AIC:

Akaike Information Criterion

ATP:

Adenosine triphosphate

BIC:

Bayesian information criterion

BLc:

Blood Lactate concentration

BLc-max:

Maximal blood lactate concentration

DNA:

Deoxyribonucleic acid

H + :

Hydrogen ion

MCT:

Monocarboxylate transporter

MCT1 :

Monocarboxylate Transporter-1 T1470A polymorphism

PCr:

Phosphocreatine

PCR:

Polymerase chain reaction

RSA:

Repeated sprint ability

Sdec:

Sprint decrement

SNP:

Single-nucleotide polymorphism

S:

Sprint

VO2max :

Maximal oxygen uptake

References

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Acknowledgements

The authors would like to thank Prof. David Bishop and Prof. Nir Eynon, for their support in planning the RSA and Lactate protocols, and all the athletes who contributed to this study.

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Authors and Affiliations

Authors

Contributions

MM and CMC conceived and designed research. MM, LF, PC, MS, FP, FT and CMC conducted experiments. MM analysed data and wrote the manuscript. NK, PC, FT, and CMC revised the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to M. Massidda.

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Conflict of interest

The authors have no conflict of interest to declare.

Ethical approval

Participants were fully informed of any risks or discomforts associated with the procedures before giving their written informed consent to participate. The procedures were approved by the Ethics Committees of the Azienda Ospedaliera Universitaria (AOU) of Cagliari University (Cagliari, Italy), and performed according to the Declaration of Helsinki.

Informed consent

Participants gave written informed consent to participate in the present study and to its publication.

Additional information

Communicated by Michael Lindinger.

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Massidda, M., Flore, L., Kikuchi, N. et al. Influence of the MCT1-T1470A polymorphism (rs1049434) on repeated sprint ability and blood lactate accumulation in elite football players: a pilot study. Eur J Appl Physiol 121, 3399–3408 (2021). https://doi.org/10.1007/s00421-021-04797-z

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  • DOI: https://doi.org/10.1007/s00421-021-04797-z

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