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Effects of intermittent training on anaerobic performance and MCT transporters in athletes

Millet, Gregoire, Bentley, David J., Roels, Belle, McNaughton, Lars R., Mercier, Jacques and Cameron-Smith, David 2014, Effects of intermittent training on anaerobic performance and MCT transporters in athletes, PLoS one, vol. 9, no. 5, doi: 10.1371/journal.pone.0095092.

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Title Effects of intermittent training on anaerobic performance and MCT transporters in athletes
Author(s) Millet, Gregoire
Bentley, David J.
Roels, Belle
McNaughton, Lars R.
Mercier, Jacques
Cameron-Smith, David
Journal name PLoS one
Volume number 9
Issue number 5
Article ID e95092
Total pages 8
Publisher Public Library of Science
Place of publication San Francisco, Calif.
Publication date 2014-05
ISSN 1932-6203
Summary 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 x 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.
Language eng
DOI 10.1371/journal.pone.0095092
Indigenous content off
Field of Research MD Multidisciplinary
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2014, Millet et al.
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30121636

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.