MYERS, Anna, DALTON, Michelle, GIBBONS, Catherine, FINLAYSON, Graham and BLUNDELL, John (2019). Structured, aerobic exercise reduces fat mass and is partially compensated through energy intake but not energy expenditure in women. Physiology & Behavior, 199, 56-65.
|
PDF
12-wk ex intervention MS_PB_amended_clean.pdf - Accepted Version Creative Commons Attribution Non-commercial No Derivatives. Download (298kB) | Preview |
Abstract
Background Exercise-induced weight loss is often less than expected and highly variable in men and women. Behavioural compensation for the exercise-induced energy deficit could be through energy intake (EI), non-exercise physical activity (NEPA) or sedentary behaviour (SB). We investigated this issue in women. Methods Twenty-four overweight [body mass index (BMI) M = 27.9 kg/m2, SD = 2.7] women [age M = 33.1 years, SD = 11.7] completed 12-weeks of supervised exercise (5×500kcal per week) in a non-randomised pre-post intervention study. Body mass (BM), waist circumference (WC), body composition, resting metabolic rate (RMR), total daily EI, individual meals, appetite sensations and appetite-related peptides were measured at baseline (week 0) and post-intervention (week 12). Free-living physical activity (PA) and SB were measured (SenseWear) at baseline, week 1 and 10 of the exercise intervention, and at post-intervention (week 13). Results Following the 12-week exercise intervention BM [p = .04], BMI [p = .035], WC [p < .001] and fat mass [p = .003] were significantly reduced, and fat-free mass (FFM) significantly increased [p = .003]. Total [p = .028], ad libitum [p = .03] and snack box EI [p = .048] were significantly increased and this was accompanied by an increase in hunger [p = .01] and a decrease in fullness [p = .03] before meals. The peptides did not explain changes in appetite [p > .05]. There was no compensatory reduction in NEPA [p > .05] and no increase in SB, rather there was a decrease in SB during the exercise intervention [p = .03]. Conclusions Twelve-weeks of supervised aerobic exercise resulted in a significant reduction in FM and an increase in FFM. Exercise increased hunger and EI which only partially compensated for the increase in energy expenditure. There was no evidence for a compensatory reduction in NEPA or an increase in SB. Dietary intervention, as an adjunct to exercise, may offset the compensatory increase in EI and result in a greater reduction in BM.
Item Type: | Article |
---|---|
Uncontrolled Keywords: | 06 Biological Sciences; 11 Medical And Health Sciences; 17 Psychology And Cognitive Sciences; Behavioral Science & Comparative Psychology |
Identification Number: | https://doi.org/10.1016/j.physbeh.2018.11.005 |
Page Range: | 56-65 |
SWORD Depositor: | Symplectic Elements |
Depositing User: | Symplectic Elements |
Date Deposited: | 12 Nov 2018 14:52 |
Last Modified: | 18 Mar 2021 03:20 |
URI: | https://shura.shu.ac.uk/id/eprint/23247 |
Actions (login required)
View Item |
Downloads
Downloads per month over past year