Erratum: Short-term, high-intensity, interval training at 105% of peak aerobic power increases time to exhaustion and performance in endurance athletes

2008 ◽  
Vol 33 (5) ◽  
pp. 1066-1066
Author(s):  
S. Bergeron-Vaillancourt ◽  
E. Gaignard ◽  
G. Guindon ◽  
L. Laurencelle ◽  
F. Trudeau ◽  
...  
Keyword(s):  
High Intensity ◽  
Aerobic Power ◽  
Interval Training ◽  
Endurance Athletes ◽  
Time To Exhaustion ◽  
High Intensity Interval Training ◽  
Short Term ◽  
And Performance ◽  
High Intensity Interval

scholarly journals Impairment of Cycling Capacity in the Heat in Well-Trained Endurance Athletes After High-Intensity Short-Term Heat Acclimation

2019 ◽  
Vol 14 (8) ◽  
pp. 1058-1065 ◽  
Author(s):  
Thomas Reeve ◽  
Ralph Gordon ◽  
Paul B. Laursen ◽  
Jason K.W. Lee ◽  
Christopher J. Tyler
Keyword(s):  
High Intensity ◽  
Interval Training ◽  
Heat Acclimation ◽  
Endurance Athletes ◽  
Stress Tests ◽  
High Intensity Interval Training ◽  
Short Term ◽  
High Intensity Interval ◽  
C 50 ◽  
Perceived Strain

Purpose: To investigate the effects of short-term, high-intensity interval-training (HIIT) heat acclimation (HA). Methods: Male cyclists/triathletes were assigned into either an HA (n = 13) or a comparison (COMP, n = 10) group. HA completed 3 cycling heat stress tests (HSTs) to exhaustion (60% Wmax; HST1, pre-HA; HST2, post-HA; HST3, 7 d post-HA). HA consisted of 30-min bouts of HIIT cycling (6 min at 50% Wmax, then 12 × 1-min 100%-Wmax bouts with 1-min rests between bouts) on 5 consecutive days. COMP completed HST1 and HST2 only. HST and HA trials were conducted in 35°C/50% relative humidity. Cycling capacity and physiological and perceptual data were recorded. Results: Cycling capacity was impaired after HIIT HA (77.2 [34.2] min vs 56.2 [24.4] min, P = .03) and did not return to baseline after 7 d of no HA (59.2 [37.4] min). Capacity in HST1 and HST2 was similar in COMP (43.5 [8.3] min vs 46.8 [15.7] min, P = .54). HIIT HA lowered resting rectal (37.0°C [0.3°C] vs 36.8°C [0.2°C], P = .05) and body temperature (36.0°C [0.3°C] vs 35.8°C [0.3°C], P = .03) in HST2 compared with HST1 and lowered mean skin temperature (35.4°C [0.5°C] vs 35.1°C [0.3°C], P = .02) and perceived strain on day 5 compared with day 1 of HA. All other data were unaffected. Conclusions: Cycling capacity was impaired in the heat after 5 d of consecutive HIIT HA despite some heat adaptation. Based on data, this approach is not recommended for athletes preparing to compete in the heat; however, it is possible that it may be beneficial if a state of overreaching is avoided.

Short-term High-intensity Interval Training and The Physiological Stress Response

2011 ◽  
Vol 43 (Suppl 1) ◽  
pp. 905-906
Author(s):  
Michael J. Ormsbee ◽  
Amber W. Kinsey ◽  
Minwook Chong ◽  
Heather S. Friedman ◽  
Tonya Dodge ◽  
...  
Keyword(s):  
Stress Response ◽  
High Intensity ◽  
Physiological Stress ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Short Term ◽  
Physiological Stress Response ◽  
High Intensity Interval

scholarly journals Short-Term High-Intensity Interval Training on Body Composition and Blood Glucose in Overweight and Obese Young Women

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Zhaowei Kong ◽  
Shengyan Sun ◽  
Min Liu ◽  
Qingde Shi
Keyword(s):  
Body Composition ◽  
Blood Glucose ◽  
Cardiorespiratory Fitness ◽  
Young Women ◽  
High Intensity ◽  
Interval Training ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
Short Term ◽  
High Intensity Interval

This study was to determine the effects of five-week high-intensity interval training (HIIT) on cardiorespiratory fitness, body composition, blood glucose, and relevant systemic hormones when compared to moderate-intensity continuous training (MICT) in overweight and obese young women.Methods. Eighteen subjects completed 20 sessions of HIIT or MICT for five weeks. HIIT involved 60 × 8 s cycling at ~90% of peak oxygen consumption (V˙O2peak) interspersed with 12 s recovery, whereas MICT involved 40-minute continuous cycling at 65% ofV˙O2peak.V˙O2peak, body composition, blood glucose, and fasting serum hormones, including leptin, growth hormone, testosterone, cortisol, and fibroblast growth factor 21, were measured before and after training.Results. Both exercise groups achieved significant improvements inV˙O2peak(+7.9% in HIIT versus +11.7% in MICT) and peak power output (+13.8% in HIIT versus +21.9% in MICT) despite no training effects on body composition or the relevant systemic hormones. Blood glucose tended to be decreased after the intervention (p=0.062). The rating of perceived exertion in MICT was higher than that in HIIT (p=0.042).Conclusion. Compared with MICT, short-term HIIT is more time-efficient and is perceived as being easier for improving cardiorespiratory fitness and fasting blood glucose for overweight and obese young women.

scholarly journals Supplements and Nutritional Interventions to Augment High-Intensity Interval Training Physiological and Performance Adaptations—A Narrative Review

Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 390 ◽  
Author(s):  
Scott C. Forbes ◽  
Darren G. Candow ◽  
Abbie E. Smith-Ryan ◽  
Katie R. Hirsch ◽  
Michael D. Roberts ◽  
...  
Keyword(s):  
Sex Differences ◽  
Sodium Bicarbonate ◽  
High Intensity ◽  
Interval Training ◽  
Narrative Review ◽  
High Intensity Interval Training ◽  
Beta Alanine ◽  
And Performance ◽  
High Intensity Interval ◽  
Nutritional Strategies

High-intensity interval training (HIIT) involves short bursts of intense activity interspersed by periods of low-intensity exercise or rest. HIIT is a viable alternative to traditional continuous moderate-intensity endurance training to enhance maximal oxygen uptake and endurance performance. Combining nutritional strategies with HIIT may result in more favorable outcomes. The purpose of this narrative review is to highlight key dietary interventions that may augment adaptations to HIIT, including creatine monohydrate, caffeine, nitrate, sodium bicarbonate, beta-alanine, protein, and essential amino acids, as well as manipulating carbohydrate availability. Nutrient timing and potential sex differences are also discussed. Overall, sodium bicarbonate and nitrates show promise for enhancing HIIT adaptations and performance. Beta-alanine has the potential to increase training volume and intensity and improve HIIT adaptations. Caffeine and creatine have potential benefits, however, longer-term studies are lacking. Presently, there is a lack of evidence supporting high protein diets to augment HIIT. Low carbohydrate training enhances the upregulation of mitochondrial enzymes, however, there does not seem to be a performance advantage, and a periodized approach may be warranted. Lastly, potential sex differences suggest the need for future research to examine sex-specific nutritional strategies in response to HIIT.

scholarly journals Intra-individual physiological response of recreational runners to different training mesocycles: a randomized cross-over study

2020 ◽  
Vol 120 (12) ◽  
pp. 2705-2713
Author(s):  
Peter Düking ◽  
Hans-Christer Holmberg ◽  
Philipp Kunz ◽  
Robert Leppich ◽  
Billy Sperlich
Keyword(s):  
Interval Training ◽  
High Volume ◽  
Physiological Adaptation ◽  
Time To Exhaustion ◽  
High Intensity Interval Training ◽  
Recreational Runners ◽  
Uptake Velocity ◽  
And Performance ◽  
High Intensity Interval ◽  
The Individual

Abstract Purpose Pronounced differences in individual physiological adaptation may occur following various training mesocycles in runners. Here we aimed to assess the individual changes in performance and physiological adaptation of recreational runners performing mesocycles with different intensity, duration and frequency. Methods Employing a randomized cross-over design, the intra-individual physiological responses [i.e., peak ($${\dot{\text V}}{\text O}_{2 {\rm peak}}$$ V ˙ O 2 peak ) and submaximal ($${\dot{\text V}}{\text O}_{2 {\rm submax}}$$ V ˙ O 2 submax ) oxygen uptake, velocity at lactate thresholds (V2, V4)] and performance (time-to-exhaustion (TTE)) of 13 recreational runners who performed three 3-week sessions of high-intensity interval training (HIIT), high-volume low-intensity training (HVLIT) or more but shorter sessions of HVLIT (high-frequency training; HFT) were assessed. Results $${\dot{\text V}}{\text O}_{2 {\rm submax}}$$ V ˙ O 2 submax , V2, V4 and TTE were not altered by HIIT, HVLIT or HFT (p > 0.05). $${\dot{\text V}}{\text O}_{2 {\rm peak}}$$ V ˙ O 2 peak improved to the same extent following HVLIT (p = 0.045) and HFT (p = 0.02). The number of moderately negative responders was higher following HIIT (15.4%); and HFT (15.4%) than HVLIT (7.6%). The number of very positive responders was higher following HVLIT (38.5%) than HFT (23%) or HIIT (7.7%). 46% of the runners responded positively to two mesocycles, while 23% did not respond to any. Conclusion On a group level, none of the interventions altered $${\dot{\text V}}{\text O}_{2 {\rm submax}}$$ V ˙ O 2 submax , V2, V4 or TTE, while HVLIT and HFT improved $${\dot{\text V}}{\text O}_{2 {\rm peak}}$$ V ˙ O 2 peak . The mean adaptation index indicated similar numbers of positive, negative and non-responders to HIIT, HVLIT and HFT, but more very positive responders to HVLIT than HFT or HIIT. 46% responded positively to two mesocycles, while 23% did not respond to any. These findings indicate that the magnitude of responses to HIIT, HVLIT and HFT is highly individual and no pattern was apparent.

Short-Term High-Intensity Interval Training Reduces Hyperglycemia in Type 2 Diabetics

2010 ◽  
Vol 42 ◽  
pp. 34-35
Author(s):  
Jenna B. Gillen ◽  
Jonathan P. Little ◽  
Zubin Punthakee ◽  
Mark A. Tarnopolsky ◽  
Martin J. Gibala
Keyword(s):  
High Intensity ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Short Term ◽  
Type 2 Diabetics ◽  
High Intensity Interval
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