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Published in: European Journal of Applied Physiology 12/2021

01-12-2021 | Fatigue | Original Article

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

Authors: M. Massidda, L. Flore, N. Kikuchi, M. Scorcu, F. Piras, P. Cugia, P. Cięszczyk, F. Tocco, C. M. Calò

Published in: European Journal of Applied Physiology | Issue 12/2021

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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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Metadata
Title
Influence of the MCT1-T1470A polymorphism (rs1049434) on repeated sprint ability and blood lactate accumulation in elite football players: a pilot study
Authors
M. Massidda
L. Flore
N. Kikuchi
M. Scorcu
F. Piras
P. Cugia
P. Cięszczyk
F. Tocco
C. M. Calò
Publication date
01-12-2021
Publisher
Springer Berlin Heidelberg
Keyword
Fatigue
Published in
European Journal of Applied Physiology / Issue 12/2021
Print ISSN: 1439-6319
Electronic ISSN: 1439-6327
DOI
https://doi.org/10.1007/s00421-021-04797-z

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