No effect of meal intake on physiological or perceptual responses to self-selected high intensity interval exercise (HIIE)
Year: 2019
Type: article
Abstract: The present study examined the effect of meal intake on physiological and psychological indices during self-selected high intensity interval exercise (HIIE).Seventeen active men and women (age = 26.4 ± 5.8 yr) completed ramp cycle ergometry to determine maximal oxygen uptake and peak power output.On two subsequent days, they performed a session of self-selected HIIE consisting of ten 1 min bouts separated by 1 min recovery in the fed or fasted state, whose order was randomized.Meal intake consisted of a banana and a Zone™ bar containing 315 kcal, which were ingested 2 h pre-exercise, and the fasted state required no food for > 12 h pre-exercise.Participants ingested an identical meal the evening before each session.Heart rate (HR), oxygen uptake (VO 2 ), blood glucose and blood lactate concentration, rating of perceived exertion (RPE), affect, and enjoyment were measured during exercise.Irrespective of fed state, both bouts elicited intensities equal to 94% HRmax which represents HIIE.Our results showed no difference in HR (174.0 ± 13.5 vs. 173.2± 12.9 b/min in fed and fasted state, p = 0.17), VO 2 (2.43 ± 0.54 vs. 2.40 ± 0.52 L/min in fed and fasted state, p = 0.14), RPE (p = 0.44), affect (p = 0.79), or enjoyment (103 ± 14 vs. 101 ± 13, p = 0.77) between the fed and fasted state.Despite its high reliance on carbohydrate, performance and perception of low-volume HIIE are not altered by ingestion of a meal before exercise.
Source: Biology of Sport
Authors: Todd A. Astorino, Sarah Sherrick, Monique MariscalI, Vianney Camarillo Jimenez, Kelli Stetson, Daniel Courtney
Language: English
Subfield: Complementary and alternative medicine
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $480
OpenAlex ID: W2955480395