Effects of 12-week circuit exercise program on obesity index, appetite regulating hormones, and insulin resistance in middle-aged obese females

Kang, Seol-Jung; Kim, Jong-Hyu; Zhao, Gang; Yook, Young-Sook; Yoon, Jea-Ryang; Ha, Gi-Chul; Ko, Kwang-Jun

doi:10.1589/jpts.30.169

Cited by 25 publications

(16 citation statements)

References 48 publications

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“…Thus energy expenditure changes may affect the amount of leptin via the exercise (31). The findings of the present research were inconsistent with the findings of other researchers with respect to the effect of resistance exercise on leptin in which it was demonstrated leptin change was associated with a decrease in weight (32). Resistance training may lead to a lower energy consumption state as the time of exercise continues; this kind of exercise compared with aerobic and concurrent exercise results in maintaining body mass fatfree through a lower metabolic rate.…”

Section: Discussioncontrasting

confidence: 99%

Effects of Aerobic Versus Resistance Training on Serum Leptin and Insulin Resistance in Healthy Sedentary Men

Abedi

Ebrahimimonfared

Sayyah

2019

Hormozgan medical journal

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Background: New pieces of evidence show that the leptin released from adipose tissue is associated with obesity; however, leptin response to different types of exercise programs in humans is unknown. Objectives: The aim of this study was to compare the effects of aerobic versus resistance training on serum leptin and insulin resistance in sedentary men.Methods: Thirty male volunteers with a mean age of 23.2 ± 1.23 years, body mass index (BMI) 23.9 ± 0.95 kg.m -2 , fat percent 18.28 ± 1.15, and waist-to-hip ratio 0.89 ± 0.02 were randomly assigned into three groups, including aerobic, resistance exercise, and control groups (n = 10). The resistance exercise program was performed for 60 minutes at 70% of one repetition maximum for 3 sets. Every set consisted of 10 repetitions per move (RPM) followed by a 30-second-rest interval between every station accompanied by a 2-minute-rest between every set. The aerobic exercise program consisted of running on a treadmill for 30 minutes at 60 to 70 percent of reserved heart rate (maximum heart rate-heart rate rest). Fasting blood samples were collected before and after 6 weeks after the termination of the exercise protocol in order to determine the plasma leptin level and insulin resistance. Results: The results of one-way ANOVA showed that body fat percentage and waist-to-hip ratio were significantly decreased in both experimental groups and maximum aerobic power and one repetition maximum of bench press plus leg press were significantly increased (P < 0.05). In addition, insulin resistance levels were significantly decreased in both exercises groups compared with the control group. However, the leptin level was significantly decreased in the aerobic exercise group compared with the other two groups (P < 0.05). Conclusions: According to these findings, both aerobic and resistance training without changes in body weight and body mass index appear to be a non-prescriptive therapeutic approach to lower the insulin levels and insulin resistance in sedentary men. However, aerobic versus resistance training may play a role in regulating systemic leptin.

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Section: Discussioncontrasting

confidence: 99%

Effects of Aerobic Versus Resistance Training on Serum Leptin and Insulin Resistance in Healthy Sedentary Men

Abedi

Ebrahimimonfared

Sayyah

2019

Hormozgan medical journal

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“…The literature search identified 840 records. After screening of titles, abstracts, and full texts, 80 relevant studies [ 46 – 125 ] were identified and included in the final analysis (Fig. 1 ).…”

Section: Resultsmentioning

confidence: 99%

“…Of 21 chronic exercise studies that measured TG/ghrelin, two-thirds of studies showed an increase in circulating levels. The latter studies included children [ 104 , 114 ], youth/young adults [ 112 , 118 , 122 ], adults [ 115 , 116 , 121 , 125 ], or seniors [ 103 , 113 , 120 , 123 ], who were either active normal weight [ 112 , 120 , 122 ] or inactive overweight/obese [ 103 , 104 , 113 – 116 , 118 , 121 , 123 , 125 ] individuals. The training was based on moderate- or high-intensity aerobic [ 112 – 116 , 123 ], resistance [ 122 ], combined [ 103 , 104 , 120 , 121 , 125 ] or intermittent [ 118 ] exercise.…”

Section: Resultsmentioning

confidence: 99%

Ghrelin Response to Acute and Chronic Exercise: Insights and Implications from a Systematic Review of the Literature

et al. 2021

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Background Ghrelin is a peptide hormone predominantly produced by the stomach. It exerts a wide range of functions including stimulating growth hormone release and regulating appetite, food intake, and glucose and lipid metabolism. Since physical exercise affects all these aspects, a particular interest is accorded to the relationship between ghrelin and exercise. This systematic review aimed to summarize the current available data on the topic for a better understanding of the relationship. Methods An extensive computerized search was performed in the PubMed and SPORTDiscus databases for retrieving relevant articles. The search contained the following keywords: ghrelin, appetite-related peptides, gastrointestinal peptides, gastrointestinal hormones, exercise, acute exercise, chronic exercise, training, and physical activity. Studies investigating the effects of acute/chronic exercise on circulating forms of ghrelin were included. Results The initial search identified 840 articles. After screening, 80 articles were included. Despite a heterogeneity of studies and a variability of the findings, the review suggests that acute exercise suppresses acyl ghrelin production regardless of the participants and the exercise characteristics. Long- and very long-term exercise training programs mostly resulted in increased total and des-acyl ghrelin production. The increase is more noticeable in overweight/obese individuals, and is most likely due to weight loss resulting from the training program. Conclusion The review suggests that exercise may impact ghrelin production. While the precise mechanisms are unclear, the effects are likely due to blood flow redistribution and weight loss for acute and chronic exercise, respectively. These changes are expected to be metabolically beneficial. Further research is needed for a better understanding of the relationship between ghrelin and exercise.

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“…15,16 Studies have suggested an important role of physical exercise in the regulation of. [17][18][19][20] Among the different modalities, high intensity interval training (HIIT) has been used as a strategy to prevent metabolic syndrome. 21 HIIT can be characterized by short duration sessions composed of high intensity repetitions, interspersed with active or passive rest 22 .There is evidence that HIIT is able to induce lipolytic hormone secretion, probably by the action of IGF-1 on protein kinase B stimulation and by the signaling of testosterone in the androgen receptor, in addition to increasing oxidative capacity, being directly related to the reduction of metabolic disturbances.…”

Section: Introductionmentioning

confidence: 99%

Responses of Plasma Adipokines to High Intensity Interval Training: Systematic Review

Silva

Sandes²,

Vasconcelos-Filho

et al. 2020

Rev Bras Med Esporte

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Introduction Obesity is one of the major diseases of modern times. However, the explanation for its pathophysiology is recent and has not yet been fully elucidated. White adipose tissue synthesizes and secretes adipokines that affect several pathologies related to obesity. Excessive growth of this tissue results in increased levels of pro-inflammatory adipokines and a consequent decrease in anti-inflammatory adipokines. Nevertheless, most studies use moderate intensity training, limiting the understanding of high intensity interval training in these proteins. Objective To verify the latest information on the effects of HIIT in improving the profile of circulating adipokines. Methods A search was performed on the databases PUBMED, Lilacs, HighWire, BVS and the Cochrane Database of Systematic Reviews, with the following keywords: HIIT adipokines, HIIT leptin, HIIT adiponectin. Eleven studies were selected, published in English and Portuguese between 2013 and 2017. Results HIIT proved to be effective in increasing adiponectin in the adolescent population and in Olympic athletes, but this depended on a good prescription parameter and exercise intensity. However, maximum or supramaximal intensities were superior to low and moderate intensities. In turn, leptin presented a significant decrease in response to HIIT due to the reduction of adipose tissue, demonstrating a directly proportional relation. Other adipokines, such as omentin-1 and interleukin-10, also responded positively to HIIT, resulting in improved anti-inflammatory status. Conclusion HIIT proved to be an efficient method to reduce inflammation due to obesity, as well as inducing an improvement in sports performance. However, the effects depend on training volume, intensity and prescription method. Level of evidence I; Therapeutic study–Investigating the results of treatment.

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Effects of 12-week circuit exercise program on obesity index, appetite regulating hormones, and insulin resistance in middle-aged obese females

Cited by 25 publications

References 48 publications

Effects of Aerobic Versus Resistance Training on Serum Leptin and Insulin Resistance in Healthy Sedentary Men

Effects of Aerobic Versus Resistance Training on Serum Leptin and Insulin Resistance in Healthy Sedentary Men

Ghrelin Response to Acute and Chronic Exercise: Insights and Implications from a Systematic Review of the Literature

Responses of Plasma Adipokines to High Intensity Interval Training: Systematic Review

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