AustralieFrV1, Main, Merge, bibRecord, 008728

The relationship between monocarboxylate transporters 1 and 4 expression in skeletal muscle and endurance performance in athletes

Identifieur interne : 008728 ( Main/Merge ); précédent : 008727; suivant : 008729

The relationship between monocarboxylate transporters 1 and 4 expression in skeletal muscle and endurance performance in athletes

Auteurs : David J. Bentley [Australie] ; Belle Roels [France] ; Claire Thomas [France] ; Robert Ives [Australie] ; Jacques Mercier [France] ; Grégoire Millet [Suisse] ; David Cameron-Smith [Australie]

Source :

European journal of applied physiology

RBID : Pascal:09-0294322

Descripteurs français

Pascal (Inist)
- Protéine transport, Muscle strié, Endurance, Performance physique, Sportif, Cyclisme, Puissance, Corrélation, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Athlete, Carrier protein, Correlation, Cyclism, Endurance, Human, Physical performance, Power, Striated muscle.

Abstract

The purpose of this study was to examine the relationship between skeletal muscle monocarboxylate transporters 1 and 4 (MCT1 and MCT4) expression, skeletal muscle oxidative capacity and endurance performance in trained cyclists. Ten well-trained cyclists (mean ± SD; age 24.4 ± 2.8 years, body mass 73.2 ± 8.3 kg, VO_2max 58 ± 7 ml kg^-1 min^-1) completed three endurance performance tasks [incremental exercise test to exhaustion, 2 and 10 min time trial (TT)]. In addition, a muscle biopsy sample from the vastus lateralis muscle was analysed for MCT1 and MCT4 expression levels together with the activity of citrate synthase (CS) and 3-hydroxyacyl-CoA dehydrogenase (HAD). There was a tendency for VO_2max and peak power output obtained in the incremental exercise test to be correlated with MCT1 (r = -0.71 to -0.74; P < 0.06), but not MCT4. The average power output (P_average) in the 2 min TT was significantly correlated with MCT4 (r = -0.74; P < 0.05) and HAD (r = -0.92; P < 0.01). The P_average in the 10 min TT was only correlated with CS activity (r = 0.68; P < 0.05). These results indicate the relationship between MCT1 and MCT4 as well as cycle TT performance may be influenced by the length and intensity of the task.

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Pascal:09-0294322

Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Athlete</term>
<term>Carrier protein</term>
<term>Correlation</term>
<term>Cyclism</term>
<term>Endurance</term>
<term>Human</term>
<term>Physical performance</term>
<term>Power</term>
<term>Striated muscle</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Protéine transport</term>
<term>Muscle strié</term>
<term>Endurance</term>
<term>Performance physique</term>
<term>Sportif</term>
<term>Cyclisme</term>
<term>Puissance</term>
<term>Corrélation</term>
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<front><div type="abstract" xml:lang="en">The purpose of this study was to examine the relationship between skeletal muscle monocarboxylate transporters 1 and 4 (MCT1 and MCT4) expression, skeletal muscle oxidative capacity and endurance performance in trained cyclists. Ten well-trained cyclists (mean ± SD; age 24.4 ± 2.8 years, body mass 73.2 ± 8.3 kg, VO<sub>2max</sub>
 58 ± 7 ml kg<sup>-1</sup>
 min<sup>-1</sup>
) completed three endurance performance tasks [incremental exercise test to exhaustion, 2 and 10 min time trial (TT)]. In addition, a muscle biopsy sample from the vastus lateralis muscle was analysed for MCT1 and MCT4 expression levels together with the activity of citrate synthase (CS) and 3-hydroxyacyl-CoA dehydrogenase (HAD). There was a tendency for VO<sub>2max</sub>
 and peak power output obtained in the incremental exercise test to be correlated with MCT1 (r = -0.71 to -0.74; P < 0.06), but not MCT4. The average power output (P<sub>average</sub>
) in the 2 min TT was significantly correlated with MCT4 (r = -0.74; P < 0.05) and HAD (r = -0.92; P < 0.01). The P<sub>average</sub>
 in the 10 min TT was only correlated with CS activity (r = 0.68; P < 0.05). These results indicate the relationship between MCT1 and MCT4 as well as cycle TT performance may be influenced by the length and intensity of the task.</div>
</front>
</TEI>
<affiliations><list><country><li>Australie</li>
<li>France</li>
<li>Suisse</li>
</country>
<region><li>Canton de Vaud</li>
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<settlement><li>Lausanne</li>
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<tree><country name="Australie"><noRegion><name sortKey="Bentley, David J" sort="Bentley, David J" uniqKey="Bentley D" first="David J." last="Bentley">David J. Bentley</name>
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<name sortKey="Cameron Smith, David" sort="Cameron Smith, David" uniqKey="Cameron Smith D" first="David" last="Cameron-Smith">David Cameron-Smith</name>
<name sortKey="Ives, Robert" sort="Ives, Robert" uniqKey="Ives R" first="Robert" last="Ives">Robert Ives</name>
</country>
<country name="France"><region name="Occitanie (région administrative)"><name sortKey="Roels, Belle" sort="Roels, Belle" uniqKey="Roels B" first="Belle" last="Roels">Belle Roels</name>
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<name sortKey="Mercier, Jacques" sort="Mercier, Jacques" uniqKey="Mercier J" first="Jacques" last="Mercier">Jacques Mercier</name>
<name sortKey="Mercier, Jacques" sort="Mercier, Jacques" uniqKey="Mercier J" first="Jacques" last="Mercier">Jacques Mercier</name>
<name sortKey="Roels, Belle" sort="Roels, Belle" uniqKey="Roels B" first="Belle" last="Roels">Belle Roels</name>
<name sortKey="Thomas, Claire" sort="Thomas, Claire" uniqKey="Thomas C" first="Claire" last="Thomas">Claire Thomas</name>
<name sortKey="Thomas, Claire" sort="Thomas, Claire" uniqKey="Thomas C" first="Claire" last="Thomas">Claire Thomas</name>
</country>
<country name="Suisse"><region name="Canton de Vaud"><name sortKey="Millet, Gregoire" sort="Millet, Gregoire" uniqKey="Millet G" first="Grégoire" last="Millet">Grégoire Millet</name>
</region>
</country>
</tree>
</affiliations>
</record>

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The relationship between monocarboxylate transporters 1 and 4 expression in skeletal muscle and endurance performance in athletes

The relationship between monocarboxylate transporters 1 and 4 expression in skeletal muscle and endurance performance in athletes

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri