scholarly journals Comparison of Visceral Fat Lipolysis Adaptation to High-Intensity Interval Training in Obesity-Prone and Obesity-Resistant Rats

2021 ◽  
Author(s):  
Yang Liu ◽  
Yu Li ◽  
Baishuo Cheng ◽  
Shige Feng ◽  
Xiangui Zhu ◽  
...  
Keyword(s):  
Visceral Fat ◽  
High Intensity ◽  
Liver Lipid ◽  
Visceral Obesity ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Adaptive Changes ◽  
Or Groups ◽  
Differential Adaptation ◽  
High Intensity Interval

Abstract Background/objectives: Visceral obesity is one of the key features of metabolic syndrome. High-intensity interval training (HIIT) could effectively reduce visceral fat but its effects show strong heterogeneity in populations with different obesity degree. The mechanism may be related to the differential adaptation to training between obesity phenotypes, namely obesity prone (OP) and obesity resistant (OR). The aim of the present study was to compare adaptive changes of visceral adipose lipolysis adaptation to HIIT between OP and OR animals and further explore the upstream pathway.Methods: OP and OR Sprague Dawley rats were established after feeding a high-fat diet for 6 weeks; they were then divided into HIIT (H-OP and H-OR) and control (C-OP and C-OR) groups. After 12 weeks of HIIT or a sedentary lifestyle, animals were fasted for 12 h and then sacrificed for histology as well as gene and protein analysis. Visceral adipocytes were isolated without fasting for catecholamine stimulation and β3-adrenergic receptor (β3-AR) blockade in vitro to evaluate the role of upstream pathways.Results: After training, there were no differences in weight loss or food intake between OP and OR rats (P > 0.05). However, the visceral fat mass, adipocyte volume and liver lipid of OP rats decreased more than that of OR rats (P < 0.05). Meanwhile, the cell lipolytic capacity and the increase in the expression of β3-AR was higher in the OP compared with OR groups (P < 0.05). Although training did not increase sympathetic nervous system activity (P > 0.05), the cell sensitivity to catecholamine increased significantly in the OP compared with OR groups (P < 0.05). After blocking β3-AR, the increased sensitivity disappeared.Conclusion: With HIIT, OP rats lost more visceral fat than OR rats, which was related to stronger adaptive changes in lipolysis. Increased β3-AR expression, rather than altered sympathetic nerve activity, mediated this adaption.

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 promotes total and visceral fat mass loss in obese Zucker rats without modulating gut microbiota

PLoS ONE ◽  
2019 ◽  
Vol 14 (4) ◽  
pp. e0214660 ◽  
Author(s):  
Florie Maillard ◽  
Emilie Vazeille ◽  
Pierre Sauvanet ◽  
Pascal Sirvent ◽  
Lydie Combaret ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Mass Loss ◽  
Visceral Fat ◽  
High Intensity ◽  
Interval Training ◽  
Zucker Rats ◽  
High Intensity Interval Training ◽  
Obese Zucker Rats ◽  
High Intensity Interval ◽  
Fat Mass Loss

scholarly journals Effects of high-intensity interval training on the anthropometric profile of overweight and obese adult women

2016 ◽  
Vol 64 (3) ◽  
pp. 465 ◽  
Author(s):  
Ingrid Rivera-Torres ◽  
Pedro Antonio Delgado-Floody
Keyword(s):  
Training Program ◽  
Muscle Mass ◽  
Visceral Fat ◽  
High Intensity ◽  
Interval Training ◽  
Adult Women ◽  
High Intensity Interval Training ◽  
Mass Percentage ◽  
High Intensity Interval ◽  
Anthropometric Profile

Introduction: Sedentary lifestyle, overweight and obesity in adult women have high prevalence.Objective: To determine the effects of a high intensity interval training program on the anthropometric profile of overweight or obese women.Materials and methods: 24 adult women, including 16 with overweight and 8 with obesity, between 26 and 49 years of age, were selected to participate in a two month high intensity training program (three sessions per week). Weight, height, BMI, muscle mass percentage, and fat mass and visceral fat percentages were assessed.Results: The adherent group (≥75% assistance) was composed by 16 participants, while the non-adherent group (assistance <75%), by 8 participants. No significant differences were found among both groups previous to and after the intervention (p≥0.05).The non-adherent group did not show any significant change, while the adherent group improved (p<0.05) their variables of weight (p<0.001), BMI (p<0.001), fat mass percentage (p<0.001), muscle mass percentage (p<0.001) and visceral fat percentage (p=0.020) after the intervention.Conclusions: The training program improved the anthropometric profile of the participants without requiring specialized equipment or involving high costs, thus, this procedure is recommended for the treatment of malnutrition by excess in this type of population.

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.

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