scholarly journals Comparable Effects of High-Intensity Interval Training and Prolonged Continuous Exercise Training on Abdominal Visceral Fat Reduction in Obese Young Women

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Haifeng Zhang ◽  
Tom K. Tong ◽  
Weifeng Qiu ◽  
Xu Zhang ◽  
Shi Zhou ◽  
...  
Keyword(s):  
Young Women ◽  
Fat Mass ◽  
Visceral Fat ◽  
High Intensity ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Fat Reduction ◽  
Abdominal Visceral Fat ◽  
Total Fat ◽  
High Intensity Interval

This study compared the effect of prolonged moderate-intensity continuous training (MICT) on reducing abdominal visceral fat in obese young women with that of work-equivalent (300 kJ/training session) high-intensity interval training (HIIT). Forty-three participants received either HIIT (n=15), MICT (n=15), or no training (CON,n=13) for 12 weeks. The abdominal visceral fat area (AVFA) and abdominal subcutaneous fat area (ASFA) of the participants were measured through computed tomography scans preintervention and postintervention. Total fat mass and the fat mass of the android, gynoid, and trunk regions were assessed through dual-energy X-ray absorptiometry. Following HIIT and MICT, comparable reductions in AVFA (−9.1, −9.2 cm2), ASFA (−35, −28.3 cm2), and combined AVFA and ASFA (−44.7, −37.5 cm2,p>0.05) were observed. Similarly, reductions in fat percentage (−2.5%, −2.4%), total fat mass (−2.8, −2.8 kg), and fat mass of the android (−0.3, −0.3 kg), gynoid (−0.5, −0.7 kg), and trunk (−1.6, −1.2 kg,p>0.05) regions did not differ between HIIT and MICT. No variable changed in CON. In conclusion, MICT consisting of prolonged sessions has no quantitative advantage, compared with that resulting from HIIT, in abdominal visceral fat reduction. HIIT appears to be the predominant strategy for controlling obesity because of its time efficiency.

Comment on: “Effect of High-Intensity Interval Training on Total, Abdominal and Visceral Fat Mass: A Meta-Analysis”

2018 ◽  
Vol 48 (10) ◽  
pp. 2413-2415 ◽  
Author(s):  
Leonardo Vidal Andreato ◽  
Braulio Henrique Magnani Branco ◽  
João Victor Esteves
Keyword(s):  
Fat Mass ◽  
Visceral Fat ◽  
High Intensity ◽  
Meta Analysis ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
High Intensity Interval

scholarly journals High-Intensity Interval Training and α-Linolenic Acid Supplementation Improve DHA Conversion and Increase the Abundance of Gut Mucosa-Associated Oscillospira Bacteria

Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 788
Author(s):  
Claire Plissonneau ◽  
Frederic Capel ◽  
Benoit Chassaing ◽  
Marine Dupuit ◽  
Florie Maillard ◽  
...  
Keyword(s):  
Linolenic Acid ◽  
Body Fat ◽  
Fat Mass ◽  
High Intensity ◽  
Interval Training ◽  
Major Public Health Problem ◽  
High Intensity Interval Training ◽  
Pufa Ratio ◽  
Acid Supplementation ◽  
High Intensity Interval

Obesity, a major public health problem, is the consequence of an excess of body fat and biological alterations in the adipose tissue. Our aim was to determine whether high-intensity interval training (HIIT) and/or α-linolenic acid supplementation (to equilibrate the n-6/n-3 polyunsaturated fatty acids (PUFA) ratio) might prevent obesity disorders, particularly by modulating the mucosa-associated microbiota. Wistar rats received a low fat diet (LFD; control) or high fat diet (HFD) for 16 weeks to induce obesity. Then, animals in the HFD group were divided in four groups: HFD (control), HFD + linseed oil (LO), HFD + HIIT, HFD + HIIT + LO. In the HIIT groups, rats ran on a treadmill, 4 days.week−1. Erythrocyte n-3 PUFA content, body composition, inflammation, and intestinal mucosa-associated microbiota composition were assessed after 12 weeks. LO supplementation enhanced α-linolenic acid (ALA) to docosahexaenoic acid (DHA) conversion in erythrocytes, and HIIT potentiated this conversion. Compared with HFD, HIIT limited weight gain, fat mass accumulation, and adipocyte size, whereas LO reduced systemic inflammation. HIIT had the main effect on gut microbiota β-diversity, but the HIIT + LO association significantly increased Oscillospira relative abundance. In our conditions, HIIT had a major effect on body fat mass, whereas HIIT + LO improved ALA conversion to DHA and increased the abundance of Oscillospira bacteria in the microbiota.

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.

Comparison of different volumes of high intensity interval training on cardiac autonomic function in sedentary young women

2017 ◽  
Vol 31 (6) ◽  
Author(s):  
Pooja Bhati ◽  
Vishal Bansal ◽  
Jamal Ali Moiz
Keyword(s):  
Heart Rate ◽  
Body Composition ◽  
Muscle Strength ◽  
Young Women ◽  
High Intensity ◽  
High Frequency ◽  
Interval Training ◽  
Treadmill Running ◽  
High Intensity Interval Training ◽  
High Intensity Interval

Abstract Purpose The present study was conducted to compare the effects of low volume of high intensity interval training (LVHIIT) and high volume of high intensity interval training (HVHIIT) on heart rate variability (HRV) as a primary outcome measure, and on maximum oxygen consumption (VO2max), body composition, and lower limb muscle strength as secondary outcome measures, in sedentary young women. Methods Thirty-six participants were recruited in this study. The LVHIIT group (n = 17) performed one 4-min bout of treadmill running at 85%–95% maximum heart rate (HRmax), followed by 3 min of recovery by running at 70% HRmax, three times per week for 6 weeks. The HVHIIT group (n = 15) performed four times 4-min bouts of treadmill running at 85%–95% HRmax, interspersed with 3-min of recovery by running at 70% HRmax, 3 times per week for 6 weeks. All criterion measures were measured before and after training in both the groups. Results Due to attrition of four cases, data of 32 participants was used for analysis. A significant increase in high frequency (HF) power (p < 0.001) and decrease in the ratio of low frequency to high frequency power (LF/HF) ratio (p < 0.001) in HRV parameters, was observed post-HVHIIT, whereas, these variables did not change significantly (HF: p = 0.92, LF/HF ratio: p = 0.52) in LVHIIT group. Nevertheless, both the interventions proved equally effective in improving aerobic capacity (VO2max), body composition, and muscle strength. Conclusion The study results suggest that both LVHIIT and HVHIIT are equally effective in improving VO2max, body composition, and muscle strength, in sedentary young women. However, HVHIIT induces parasympathetic dominance as well, as measured by HRV.

scholarly journals High-Intensity Interval Training in Cardiac Rehabilitation: Impact on Fat Mass in Patients With Myocardial Infarction

2019 ◽  
Vol 94 (9) ◽  
pp. 1718-1730 ◽  
Author(s):  
Yaoshan Dun ◽  
Randal J. Thomas ◽  
Jose R. Medina-Inojosa ◽  
Ray W. Squires ◽  
Hsuhang Huang ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Cardiac Rehabilitation ◽  
Fat Mass ◽  
High Intensity ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
High Intensity Interval
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