scholarly journals Evening high‐intensity interval exercise does not disrupt sleep or alter energy intake despite changes in acylated ghrelin in middle‐aged men

2019 ◽  
Vol 104 (6) ◽  
pp. 826-836 ◽  
Author(s):  
Penelope Larsen ◽  
Frank Marino ◽  
Kerri Melehan ◽  
Kym J Guelfi ◽  
Rob Duffield ◽  
...  
Keyword(s):  
Energy Intake ◽  
High Intensity ◽  
Acylated Ghrelin ◽  
Middle Aged ◽  
Interval Exercise ◽  
High Intensity Interval

scholarly journals High-intensity interval exercise induces greater acute changes in sleep, appetite-related hormones, and free-living energy intake than does moderate-intensity continuous exercise

2019 ◽  
Vol 44 (5) ◽  
pp. 557-566 ◽  
Author(s):  
Penelope Larsen ◽  
Frank Marino ◽  
Kerri Melehan ◽  
Kym J. Guelfi ◽  
Rob Duffield ◽  
...  
Keyword(s):  
Oxygen Consumption ◽  
Energy Intake ◽  
High Intensity ◽  
Peak Oxygen Consumption ◽  
Moderate Intensity ◽  
Sleep Stages ◽  
Acylated Ghrelin ◽  
Interval Exercise ◽  
Continuous Exercise ◽  
High Intensity Interval

The aim of this study was to compare the effect of high-intensity interval exercise (HIIE) and moderate-intensity continuous exercise (MICE) on sleep characteristics, appetite-related hormones, and eating behaviour. Eleven overweight, inactive men completed 2 consecutive nights of sleep assessments to determine baseline (BASE) sleep stages and arousals recorded by polysomnography (PSG). On separate afternoons (1400–1600 h), participants completed a 30-min exercise bout: either (i) MICE (60% peak oxygen consumption) or (ii) HIIE (60 s of work at 100% peak oxygen consumption: 240 s of rest at 50% peak oxygen consumption), in a randomised order. Measures included appetite-related hormones (acylated ghrelin, leptin, and peptide tyrosine tyrosine) and glucose before exercise, 30 min after exercise, and the next morning after exercise; PSG sleep stages; and actigraphy (sleep quantity and quality); in addition, self-reported sleep and food diaries were recorded until 48 h after exercise. There were no between-trial differences for time in bed (p = 0.19) or total sleep time (p = 0.99). After HIIE, stage N3 sleep was greater (21% ± 7%) compared with BASE (18% ± 7%; p = 0.02). In addition, the number of arousals during rapid eye movement sleep were lower after HIIE (7 ± 5) compared with BASE (11 ± 7; p = 0.05). Wake after sleep onset was lower following MICE (41 min) compared with BASE (56 min; p = 0.02). Acylated ghrelin was lower and glucose was higher at 30 min after HIIE when compared with MICE (p ≤ 0.05). There were no significant differences between conditions in terms of total energy intake (p ≥ 0.05). HIIE appears to be more beneficial than MICE for improving sleep quality and inducing favourable transient changes in appetite-related hormones in overweight, inactive men. However, energy intake was not altered regardless of exercise intensity.

Effect of Acute High Intensity Interval Exercise on Plasma Acylated Ghrelin Concentrations

2016 ◽  
Vol 48 ◽  
pp. 949-950
Author(s):  
Calvin Lloyd Cole ◽  
Walter R. Thompson ◽  
Leslie J. Brandon ◽  
Dan Benardot ◽  
Jeff Otis ◽  
...  
Keyword(s):  
High Intensity ◽  
Acylated Ghrelin ◽  
Interval Exercise ◽  
High Intensity Interval

scholarly journals Does an acute bout of high intensity interval exercise suppress appetite in obese women?

2020 ◽  
Vol 24 (4) ◽  
pp. 181-188 ◽  
Author(s):  
Sepideh Khalaj ◽  
Bahman Mirzaei
Keyword(s):  
Energy Intake ◽  
High Intensity ◽  
Experimental Session ◽  
Control Session ◽  
Obese Women ◽  
Related Protein ◽  
Interval Exercise ◽  
High Intensity Interval ◽  
Agouti Related Protein ◽  
Desire To Eat

Purpose: The aim of this study was to investigate the 24 hour response of appetite and energy intake and the amount of Agouti-Related Protein to the high intensity interval exercise in obese untrained women. Methods: Ten obese untrained women were voluntarily selected according to the criteria of the research and evaluated in two experimental and control sessions. Blood samples were collected in two sessions of control and experimental group in five stages. Also, the appetite questionnaire was completed in 9 steps. Also, energy intake was recorded by them during the day. Results: Agouti-Related Protein increased significantly in experimental session immediately after exercise compared to the control session (p<0.05). In the Visual analog scale, the feeling of hunger and desire to eat decreased significantly immediately after exercise and before lunch in the experimental session (p<0.05). While feeling of satiety and fullness were significantly higher immediately after exercise and before lunch (p<0.05), in other words, the desire to eat was reduced. Also, exercise significantly reduced energy intake in the experimental session compared to control session (p<0.05). The amount of protein consumption, carbohydrate, and fat decreased in the experimental session compared to the control session, but this decrease was not statistically significant (p>0.05). Conclusions: Although a session of high intensity interval exercise resulted in reduced energy intake, but this reduction was not related to just one macronutrient. Hunger and desire to eat decreased after exercise and before lunch but the Agouti-Related Protein increased after exercise.

scholarly journals Appetite, energy intake and food reward responses to an acute High Intensity Interval Exercise in adolescents with obesity

2018 ◽  
Vol 195 ◽  
pp. 90-97 ◽  
Author(s):  
Maud Miguet ◽  
Alicia Fillon ◽  
Marwa Khammassi ◽  
Julie Masurier ◽  
Valérie Julian ◽  
...  
Keyword(s):  
Energy Intake ◽  
High Intensity ◽  
Food Reward ◽  
Interval Exercise ◽  
High Intensity Interval

Comparing the Effects of Immersed Versus Land-Based High-Intensity Interval Cycling on Energy Intake, Appetite Sensations and Perceived Exertion Among Healthy Men

2021 ◽  
pp. 003151252110073
Author(s):  
Lore Metz ◽  
Laurie Isacco ◽  
Maud Miguet ◽  
Pauline Genin ◽  
David Thivel ◽  
...  
Keyword(s):  
Energy Intake ◽  
High Intensity ◽  
Perceived Exertion ◽  
Area Under The Curve ◽  
Macronutrient Intake ◽  
Healthy Men ◽  
High Intensity Interval ◽  
Interval Cycling ◽  
Desire To Eat ◽  
The Relationship

Immersed exercise has been shown to induce higher energy expenditure and no difference or increase in food intake compared with similar exercise on land. In this study, we compared the effects of acute high-intensity cycling performed on land versus when immersed on subsequent energy intake (EI), appetite sensations and perceived exertion (RPE) in healthy men. Ten participants in a postprandial condition completed three experimental visits in a randomized order: a control condition (CONT); a high-intensity interval cycling exercise performed on land (HIIE-L) and the same exercise while immersed in water (HIIE-A) with a similar targeted heart rate. We observed no difference in energy and macronutrient intake and in area under the curve (AUC) for appetite sensations between sessions. The RPE at the end of HIIE-L was negatively correlated with EI (r=–0.67; p < 0.05), AUC for hunger (r=–0.86, p < 0.01), desire to eat (r=–0.78, p < 0.05) and prospective food consumption (r=–0.86, p < 0.01). Conversely, the RPE at the end of HIIE-L was positively correlated with AUC for fullness (r = 0.76 , p < 0.05). No such correlations were observed for HIIE-A. The present study was the first to observe that immersion did not influence EI after HIIE cycling, but immersion blunted the relationship between session RPE and subsequent energy intake and appetite sensations relative to HIIE on land.

Effects of L-citrulline supplementation on nitric oxide and antioxidant markers after high-intensity interval exercise in young men: a randomized controlled trial

2021 ◽  
pp. 1-23
Author(s):  
Kosar Valaei ◽  
Javad Mehrabani ◽  
Alexei Wong
Keyword(s):  
Nitric Oxide ◽  
High Intensity ◽  
Controlled Trial ◽  
Young Men ◽  
No Production ◽  
Double Blind ◽  
Interval Exercise ◽  
Damage Indices ◽  
High Intensity Interval ◽  
Antioxidant Markers

Abstract L-citrulline (L-Cit) is a nonessential amino acid that stimulates nitric oxide (NO) production and improves exercise performance by reducing muscle damage indices; however, the direct benefits of L-Cit on antioxidant markers are unclear. The aim of this study was to examine antioxidant responses to high-intensity interval exercise following acute L-Cit supplementation. Nine young men (21 ± 1 years) participated in a double-blind crossover study in which they received 12 g of L-Cit and placebo (PL) an hour prior to high-intensity interval exercise on two occasions, separated by a seven-day washout period. Blood samples were obtained before (PRE), immediately after (IP), 10 (10P), and 30 min after exercise (30P) from the cubital vein using standard procedures. Serum concentrations of superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT), and NO metabolites (NOx) were measured. The exercise protocol significantly elevated SOD (p = 0.01) and GPx (p = 0.048) from PRE to 10P in the L-Cit group with greater changes than the PL group. CAT concentrations increased IP (p = 0.014) and remained elevated at 10P (p = 0.03) and 30P (p = 0.015) in both the L-Cit and PL conditions. NOx concentrations increased IP (p = 0.05) in the L-Cit group with greater changes than PL group in PRE to IP, PRE to 10P, and PRE to 30P (p < 0.05). Our data indicate that L-Cit supplementation (single 12 g dose pre-exercise) induces improvements in antioxidant markers following a session of high-intensity interval exercise in young men.

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