scholarly journals High-intensity interval training is superior to moderate intensity training on aerobic capacity in rats: Impact on hippocampal plasticity markers

2021 ◽  
Vol 398 ◽  
pp. 112977
Author(s):  
Annabelle Constans ◽  
Caroline Pin-Barre ◽  
Florence Molinari ◽  
Jean-Jacques Temprado ◽  
Thomas Brioche ◽  
...  
Keyword(s):  
Aerobic Capacity ◽  
High Intensity ◽  
Interval Training ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
Hippocampal Plasticity ◽  
High Intensity Interval ◽  
Intensity Training

High-intensity interval exercise induces 24-h energy expenditure similar to traditional endurance exercise despite reduced time commitment

2014 ◽  
Vol 39 (7) ◽  
pp. 845-848 ◽  
Author(s):  
Lauren E. Skelly ◽  
Patricia C. Andrews ◽  
Jenna B. Gillen ◽  
Brian J. Martin ◽  
Michael E. Percival ◽  
...  
Keyword(s):  
Oxygen Consumption ◽  
Energy Expenditure ◽  
High Intensity ◽  
Interval Training ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
Interval Exercise ◽  
Time Commitment ◽  
High Intensity Interval ◽  
Intensity Training

Subjects performed high-intensity interval training (HIIT) and continuous moderate-intensity training (END) to evaluate 24-h oxygen consumption. Oxygen consumption during HIIT was lower versus END; however, total oxygen consumption over 24 h was similar. These data demonstrate that HIIT and END induce similar 24-h energy expenditure, which may explain the comparable changes in body composition reported despite lower total training volume and time commitment.

scholarly journals Salutary effects of high-intensity interval training in persons with elevated cardiovascular risk

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 2254 ◽  
Author(s):  
Jerome L. Fleg
Keyword(s):  
Cardiovascular Risk ◽  
Aerobic Capacity ◽  
High Intensity ◽  
Interval Training ◽  
Aerobic Exercise Training ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
Continuous Training ◽  
Beneficial Effects ◽  
High Intensity Interval

Although moderate-intensity continuous training (MICT) has been the traditional model for aerobic exercise training for over four decades, a growing body of literature has demonstrated equal if not greater improvement in aerobic capacity and similar beneficial effects on body composition, glucose metabolism, blood pressure, and quality of life from high-intensity interval training (HIIT). An advantage of HIIT over MICT is the shorter time required to perform the same amount of energy expenditure. The current brief review summarizes the effects of HIIT on peak aerobic capacity and cardiovascular risk factors in healthy adults and those with various cardiovascular diseases, including coronary artery disease, chronic heart failure, and post heart transplantation.

scholarly journals Effects of Moderate- versus Mixed-Intensity Training on VO2peak in Young Well-Trained Rowers

Sports ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 92
Author(s):  
Timo Kirchenberger ◽  
Sascha Ketelhut ◽  
Reinhard G. Ketelhut
Keyword(s):  
Exercise Test ◽  
High Intensity ◽  
Intervention Group ◽  
Interval Training ◽  
Moderate Intensity ◽  
Control Group ◽  
High Intensity Interval Training ◽  
Rowing Performance ◽  
High Intensity Interval ◽  
Intensity Training

The effects of moderate-intensity continuous training (MICT) and a combination of MICT and high-intensity interval training (HIIT) on rowing performance and VO2peak were investigated in young athletes. Seventeen well-trained rowers (aged 15 ± 1.3 years) were randomly allocated to an intervention (IG) (n = 10) and control group (CG) (n = 7). During 8 weeks, both groups took part in the regular rowing training (3×/week MICT, 70–90 min, 65–70% of HRpeak + 2×/week resistance training). The IG completed an additional high-intensity interval training twice weekly (2 × 4 × 2 min at ≈95% of HRpeak, 60 s rest). Instead of the HIIT, the CG completed two more MICT sessions (70–90 min, 65–70% of HRpeak). Before and after the intervention, a 2000 m time trial and an exercise test were performed. The IG showed a significant improvement (p = 0.001) regarding the absolute rowing time in the graded exercise test. Furthermore, the intervention group showed a significant increase in relative VO2peak (p = 0.023), a significant increase in absolute VO2peak (p = 0.036), and a significant improvement in the 2000 m time trail (p = 0.003). No significant changes could be detected in the CG. The interaction effects were not significant. A mixed-intensity training, including HIIT, was beneficial on rowing performance and VO2peak in highly trained athletes.

scholarly journals A pilot study examining the effects of low-volume high-intensity interval training and continuous low to moderate intensity training on quality of life, functional capacity and cardiovascular risk factors in cancer survivors

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2613 ◽  
Author(s):  
Kellie Toohey ◽  
Kate L. Pumpa ◽  
Leonard Arnolda ◽  
Julie Cooke ◽  
Desmond Yip ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Risk Factors ◽  
High Intensity ◽  
Interval Training ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
Low Volume ◽  
High Intensity Interval ◽  
Intensity Training

PurposeThe aim of this study was to evaluate the effects of low-volume high-intensity interval training and continuous low to moderate intensity training on quality of life, functional capacity and cardiovascular disease risk factors in cancer survivors.MethodsCancer survivors within 24 months post-diagnosis were randomly assigned into the low-volume high-intensity interval training group (n = 8) or the continuous low to moderate intensity training group (n = 8) group for 36 sessions (12 weeks) of supervised exercise. The low-volume high-intensity interval training (LVHIIT) group performed 7 × 30 s intervals (≥85% maximal heart rate) and the continuous low to moderate intensity training (CLMIT) group performed continuous aerobic training for 20 min (≤55% maximal heart rate) on a stationary bike or treadmill.ResultsSignificant improvements (time) were observed for 13 of the 23 dependent variables (ES 0.05–0.61,p ≤ 0.05). An interaction effect was observed for six minute walk test (18.53% [32.43–4.63] ES 0.50,p ≤ 0.01) with the LVHIIT group demonstrating greater improvements.ConclusionThese preliminary findings suggest that both interventions can induce improvements in quality of life, functional capacity and selected cardiovascular disease risk factors. The LVHIIT program was well tolerated by the participants and our results suggest that LVHIIT is the preferred modality to improve fitness (6MWT); it remains to be seen which intervention elicits the most clinically relevant outcomes for patients. A larger sample size with a control group is required to confirm the significance of these findings.

High intensity interval training alters substrate utilization and reduces oxygen consumption in the heart

2011 ◽  
Vol 111 (5) ◽  
pp. 1235-1241 ◽  
Author(s):  
A. D. Hafstad ◽  
N. T. Boardman ◽  
J. Lund ◽  
M. Hagve ◽  
A. M. Khalid ◽  
...  
Keyword(s):  
Oxygen Consumption ◽  
High Intensity ◽  
Interval Training ◽  
Substrate Utilization ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
Cardiac Efficiency ◽  
High Intensity Training ◽  
High Intensity Interval ◽  
Intensity Training

Aims: although exercise training induces hypertrophy with improved contractile function, the effect of exercise on myocardial substrate metabolism and cardiac efficiency is less clear. High intensity training has been shown to produce more profound effects on cardiovascular function and aerobic capacity than isocaloric low and moderate intensity training. The aim of the present study was to explore metabolic and mechanoenergetic changes in the heart following endurance exercise training of both high and moderate intensity. Methods and Results: C57BL/6J mice were subjected to 10 wk treadmill running, either high intensity interval training (HIT) or distance-matched moderate intensity training (MIT), where HIT led to a pronounced increase in maximal oxygen uptake. Although both modes of exercise were associated with a 10% increase in heart weight-to-body weight ratio, only HIT altered cardiac substrate utilization, as revealed by a 36% increase in glucose oxidation and a concomitant reduction in fatty acid oxidation. HIT also improved cardiac efficiency by decreasing work-independent myocardial oxygen consumption. In addition, it increased cardiac maximal mitochondrial respiratory capacity. Conclusion: This study shows that high intensity training is required for induction of changes in cardiac substrate utilization and energetics, which may contribute to the superior effects of high compared with moderate intensity training in terms of increasing aerobic capacity.

scholarly journals Role or Synergistic Interaction of Adenosine and Vitamin D3 Alongside High-Intensity Interval Training and Isocaloric Moderate Intensity Training on Metabolic Parameters: Protocol for an Experimental Study (Preprint)

2018 ◽  
Author(s):  
Seyed Javad Mirghani ◽  
Maghsoud Peeri ◽  
Omid Yaghoobpour Yekani ◽  
Masoud Zamani ◽  
Foad Feizolahi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Vitamin D3 ◽  
High Intensity ◽  
High Fat Diet ◽  
Interval Training ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
High Fat ◽  
High Intensity Interval ◽  
Intensity Training

BACKGROUND Obesity is known as one of the major causes of epidemiologic diseases worldwide; therefore, the introduction of treatment strategies by medical professionals, such as the use of various medicines and exercise programs to reduce fat or prevent obesity, is on the rise. Recently, researchers have shown special interest in assessing the effect of lipolytic adenosine and vitamin D deficiency, as well as the effect of exercise, on decreasing body fat percentage. OBJECTIVE This study has been designed to examine the effect of adenosine and vitamin D3 injections, in conjunction with high-intensity interval training and isocaloric moderate-intensity training, on the metabolic parameters of obesity induced by a high-fat diet. METHODS This is an experimental study using 92 Wistar rats. At 6 weeks of age, the rats' weights will be recorded, after which they will have 1 week to adapt to their new environment before being divided into 12 groups. The rats will participate in a 2-stage experimental intervention, including a 13-week fattening diet phase followed by a 12-week exercise training phase consisting of an exercise program and the injection of adenosine and vitamin D3. Groups 1 and 2 will have a normal diet, and the other groups will have a diet of 40% fat, with free access to food and water up to the second half of the second stage of the study (end of the sixth week of training). After termination of the interventions, tissue collection and molecular assessments (blood for biochemical, tissues for gene expression analyses, and anthropometrical indexes) will be performed. RESULTS The project was initiated in April 2017 and completed in December 2017. Data analysis is under way, and the first results are expected to be submitted for publication in November 2018. CONCLUSIONS We hypothesize that weight loss–induced molecular changes and upregulation will be observed in line with an increase in lipolysis and beta oxidation in muscle and fat tissue as a result of performing isocaloric training in drug-receiving rats and groups on a high-fat diet. INTERNATIONAL REGISTERED REPOR RR1-10.2196/10753

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