scholarly journals High‐intensity training in normobaric hypoxia enhances exercise performance and aerobic capacity in Thoroughbred horses: A randomized crossover study

2020 ◽  
Vol 8 (10) ◽  
Author(s):  
Kazutaka Mukai ◽  
Hajime Ohmura ◽  
Akira Matsui ◽  
Hiroko Aida ◽  
Toshiyuki Takahashi ◽  
...  
Keyword(s):  
Crossover Study ◽  
Aerobic Capacity ◽  
Exercise Performance ◽  
High Intensity ◽  
Normobaric Hypoxia ◽  
High Intensity Training ◽  
Thoroughbred Horses ◽  
Randomized Crossover Study ◽  
Intensity Training

Effects of high-intensity training on monocarboxylate transporters in Thoroughbred horses

2009 ◽  
Vol 6 (04) ◽  
pp. 171-175 ◽  
Author(s):  
Yu Kitaoka ◽  
Yuki Wakasugi ◽  
Daisuke Hoshino ◽  
Kazutaka Mukai ◽  
Atsushi Hiraga ◽  
...  
Keyword(s):  
High Intensity ◽  
Monocarboxylate Transporters ◽  
High Intensity Training ◽  
Thoroughbred Horses ◽  
Intensity Training

Can Hyperoxic Preconditioning in Normobaric Hypoxia (3500 m) Improve All-Out Exercise Performance in Highly Skilled Skiers? A Randomized Crossover Study

2020 ◽  
Vol 15 (3) ◽  
pp. 346-353
Author(s):  
David Morawetz ◽  
Tobias Dünnwald ◽  
Martin Faulhaber ◽  
Hannes Gatterer ◽  
Lukas Höllrigl ◽  
...  
Keyword(s):  
Crossover Study ◽  
Exercise Performance ◽  
Near Infrared ◽  
Acute Hypoxia ◽  
Normobaric Hypoxia ◽  
Pure Oxygen ◽  
Adaptation To Hypoxia ◽  
Short Period ◽  
Highly Skilled ◽  
Randomized Crossover Study

Background: The altering effects of hypoxia on aerobic/anaerobic performance are well documented and form the basis of this study. Application of hyperoxic gases (inspiratory fraction of oxygen [FiO2] > 0.2095) prior to competition or training (hyperoxic preconditioning) can compensate for the negative influence of acute hypoxia. Purpose: To investigate whether oxygen supplementation immediately prior to exercise (FiO2 = 1.0) improves all-out exercise performance in normobaric hypoxia (3500 m) in highly skilled skiers. Methods: In this single-blind, randomized, crossover study, 17 subjects performed a 60-second constant-load, all-out test in a normobaric hypoxic chamber. After a short period of adaptation to hypoxia (60 min), they received either pure oxygen or chamber air for 5 minutes prior to the all-out test (hyperoxic preconditioning vs nonhyperoxic preconditioning). Capillary blood was collected 3 times, and muscle oxygenation was assessed with near-infrared spectroscopy. Results: Absolute and relative peak power (P = .073 vs P = .103) as well as mean power (P = .330 vs P = .569) did not significantly differ after the hyperoxic preconditioning phase. PaO2 increased from 51.3 (3) to 451.9 (89.0) mm Hg, and SaO2 increased from 88.2% (1.7%) to 100% (0.2%) and dropped to 83.8% (4.2%) after the all-out test. Deoxygenation (P = .700) and reoxygenation rates (P = .185) did not significantly differ for both preconditioned settings. Conclusions: Therefore, the authors conclude that hyperoxic preconditioning did not enhance 60-second all-out exercise performance in acute hypoxia (3500 m).

scholarly journals Can Supplementation of Vitamin D Improve Aerobic Capacity in Well Trained Youth Soccer Players?

2018 ◽  
Vol 61 (1) ◽  
pp. 63-72 ◽  
Author(s):  
Maria Jastrzębska ◽  
Mariusz Kaczmarczyk ◽  
Małgorzata Michalczyk ◽  
Łukasz Radzimiński ◽  
Piotr Stępień ◽  
...  
Keyword(s):  
Vitamin D ◽  
Aerobic Capacity ◽  
High Intensity ◽  
Interval Training ◽  
Vitamin D Supplementation ◽  
Soccer Players ◽  
Aerobic Performance ◽  
High Intensity Training ◽  
High Level ◽  
Intensity Training

AbstractThere is no clear evidence that vitamin D effectively improves physical capacity in high-level athletes. The aim of this study was to confirm that vitamin D supplementation of soccer players during eight-week high-intensity training would have a significant effect on their aerobic capacity. The subjects were divided into two groups: the experimental one that was supplemented with vitamin D (SG, n = 20), and the placebo group (PG, n = 16), not supplemented with vitamin D. All the players were subjected to the same soccer training described as High-Intensity Interval Training (HIIT). The data of the vitamin D level, PWC170, lactate threshold (LT) were collected just before and after the intervention. A significant increase in vitamin D concentration (119%) was observed in the supplemented group, while the non-supplemented group showed a decrease of 8.4%. The studied subjects improved VO2max results by 20% in the SG, and by 13% in the PG. The improvement in velocity at the LT was similar in both groups. Results of this study show that vitamin D can have a positive, though moderate, effect on aerobic performance in players subjected to high-intensity training in the form of small-sided games for 8 weeks.

High-intensity Training Increases Fatty Acid Oxidation In Thoroughbred Horses

2010 ◽  
Vol 42 ◽  
pp. 87
Author(s):  
Yu Kitaoka ◽  
Yukari Endo ◽  
Kazutaka Mukai ◽  
Atsushi Hiraga ◽  
Tohru Takemasa ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Oxidation ◽  
High Intensity ◽  
Acid Oxidation ◽  
High Intensity Training ◽  
Thoroughbred Horses ◽  
Intensity Training

High Intensity Training Effects on Aerobic Capacity in Men Firefighters

2011 ◽  
Vol 43 (Suppl 1) ◽  
pp. 707-708
Author(s):  
Nauris Tamulevicius ◽  
Leta Hicks ◽  
Agnia McGinn ◽  
Joe Bruni ◽  
George Wade
Keyword(s):  
Aerobic Capacity ◽  
High Intensity ◽  
Training Effects ◽  
High Intensity Training ◽  
Intensity Training
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