PMID- 32473928 OWN - NLM STAT- MEDLINE DCOM- 20210621 LR - 20210621 IS - 1873-507X (Electronic) IS - 0031-9384 (Linking) VI - 223 DP - 2020 Sep 1 TI - Short-term interval exercise suppresses acylated ghrelin and hunger during caloric restriction in women with obesity. PG - 112978 LID - S0031-9384(20)30292-4 [pii] LID - 10.1016/j.physbeh.2020.112978 [doi] AB - Caloric restriction is suggested to increase hunger, in part, through complex interactions of hormones and behavior that contribute to challenges in long-term weight loss. Although intense exercise may attenuate appetite, no data exist testing the effects of interval exercise (INT) during a low-calorie diet (LCD) on appetite regulation. We hypothesized that LCD+INT would favorably influence satiety when compared with an energy-deficit matched LCD in women with obesity. Twenty-six women with obesity (47.3+/-2.4 yrs; 37.3 +/- 1.2 kg/m(2)) were randomized to either LCD (n = 13; mixed meals of ~1200 kcal/d) or LCD+INT (n = 13; 60 min/d of supervised interval exercise at 90% HRpeak for 3 min and 50% HRpeak for 3 min) for 2 weeks. An additional 350kcal (shake) was provided to LCD+INT individuals post-exercise to equate energy availability between groups. Total PYY, acylated ghrelin and des-ghrelin were measured at 0, 30 and 60 min of a 75g OGTT before and after the intervention. Visual analog scales were also administered at 0 and 120 min of the OGTT to assess appetite perception. Food logs were recorded prior to and during the intervention to ensure caloric intake compliance. Compared with pre-intervention conditions, both interventions decreased food intake (P = 0.001) and body fat (P < 0.01). There was no effect on fasting PYY, but both LCD and LCD+INT increased post-prandial PYY iAUC (P < 0.001) relative to pre-intervention. LCD+INT maintained fasting acylated ghrelin (P = 0.06) and suppressed post-prandial acylated ghrelin iAUC (P = 0.04) compared to LCD. Neither intervention impacted circulating des- ghrelin before or following the OGTT. Interestingly, LCD+INT attenuated fasting hunger and maintained fullness compared with LCD (P = 0.05 and P = 0.06, respectively). Taken together, interval exercise favors acylated ghrelin suppression and perception of hunger during a LCD in women with obesity. CI - Copyright (c) 2020 Elsevier Inc. All rights reserved. FAU - Malin, Steven K AU - Malin SK AD - Department of Kinesiology, University of Virginia, Charlottesville, VA, United States; Division of Endocrinology & Metabolism, University of Virginia, Charlottesville, VA, United States; Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, United States. Electronic address: skm6n@virginia.edu. FAU - Heiston, Emily M AU - Heiston EM AD - Department of Kinesiology, University of Virginia, Charlottesville, VA, United States. FAU - Gilbertson, Nicole M AU - Gilbertson NM AD - Department of Kinesiology, University of Virginia, Charlottesville, VA, United States. FAU - Eichner, Natalie Z M AU - Eichner NZM AD - Department of Kinesiology, University of Virginia, Charlottesville, VA, United States. LA - eng GR - R01 HL130296/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20200529 PL - United States TA - Physiol Behav JT - Physiology & behavior JID - 0151504 RN - 0 (Ghrelin) RN - 106388-42-5 (Peptide YY) SB - IM MH - Appetite MH - *Caloric Restriction MH - Energy Intake MH - Exercise MH - Female MH - *Ghrelin MH - Humans MH - Hunger MH - Obesity/therapy MH - Peptide YY OTO - NOTNLM OT - Appetite OT - Diet OT - Hunger OT - Physical Activity OT - Weight management COIS- Declaration of Competing Interest None to disclose. EDAT- 2020/06/01 06:00 MHDA- 2021/06/22 06:00 CRDT- 2020/06/01 06:00 PHST- 2019/10/09 00:00 [received] PHST- 2020/04/01 00:00 [revised] PHST- 2020/05/20 00:00 [accepted] PHST- 2020/06/01 06:00 [pubmed] PHST- 2021/06/22 06:00 [medline] PHST- 2020/06/01 06:00 [entrez] AID - S0031-9384(20)30292-4 [pii] AID - 10.1016/j.physbeh.2020.112978 [doi] PST - ppublish SO - Physiol Behav. 2020 Sep 1;223:112978. doi: 10.1016/j.physbeh.2020.112978. Epub 2020 May 29.