Effects of Intermittent Training on Anaerobic Performance and MCT Transporters in Athletes.

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Serval ID
serval:BIB_1886E4AD6394
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Effects of Intermittent Training on Anaerobic Performance and MCT Transporters in Athletes.
Journal
PLoS One
Author(s)
Millet G., Bentley D.J., Roels B., Mc Naughton L.R., Mercier J., Cameron-Smith D.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Publication state
Published
Issued date
2014
Peer-reviewed
Oui
Volume
9
Number
5
Pages
e95092
Language
english
Abstract
This study examined the effects of intermittent hypoxic training (IHT) on skeletal muscle monocarboxylate lactate transporter (MCT) expression and anaerobic performance in trained athletes. Cyclists were assigned to two interventions, either normoxic (N; n = 8; 150 mmHg PIO2) or hypoxic (H; n = 10; ∼3000 m, 100 mmHg PIO2) over a three week training (5×1 h-1h30.week-1) period. Prior to and after training, an incremental exercise test to exhaustion (EXT) was performed in normoxia together with a 2 min time trial (TT). Biopsy samples from the vastus lateralis were analyzed for MCT1 and MCT4 using immuno-blotting techniques. The peak power output (PPO) increased (p<0.05) after training (7.2% and 6.6% for N and H, respectively), but VO2max showed no significant change. The average power output in the TT improved significantly (7.3% and 6.4% for N and H, respectively). No differences were found in MCT1 and MCT4 protein content, before and after the training in either the N or H group. These results indicate there are no additional benefits of IHT when compared to similar normoxic training. Hence, the addition of the hypoxic stimulus on anaerobic performance or MCT expression after a three-week training period is ineffective.
Pubmed
Web of science
Open Access
Yes
Create date
07/05/2014 21:38
Last modification date
20/08/2019 12:49
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