Physical activity duration but not energy expenditure differs between daily and intermittent breakfast consumption in adolescent girls: a randomized crossover trial

2.50
Hdl Handle:
http://hdl.handle.net/10547/622535
Title:
Physical activity duration but not energy expenditure differs between daily and intermittent breakfast consumption in adolescent girls: a randomized crossover trial
Authors:
Zakrzewski-Fruer, Julia K. ( 0000-0003-4167-4100 ) ; Wells, Emma K.; Crawford, Natasha S.G.; Afeef, Sahar M.O.; Tolfrey, Keith ( 0000-0001-6269-1538 )
Abstract:
Background: It is not known whether breakfast frequency affects physical activity (PA) in children or adolescents. Objective: This study examined the effect of daily compared with intermittent breakfast consumption on estimated PA energy expenditure (PAEE) in adolescent girls. Methods: Using a randomized crossover design, 27 girls (age 12.4 ± 0.5 y, body mass index 19.3 ± 3.0 kg∙m-2) completed two, 7-day conditions. A standardized breakfast (~1674 kJ) was consumed every day before 09:00 in the daily breakfast consumption (DBC) condition. The standardized breakfast was consumed on only three days before 09:00 in the intermittent breakfast consumption (IBC) condition alternating with breakfast omission on the remaining four days (i.e., only water consumed before 10:30). Combined heart rate-accelerometry was used to estimate PAEE throughout each condition. Statistical analyses were completed using condition by time of day repeated measures analysis of variance. The primary outcome was PAEE and the secondary outcome was time spent in PA. Results: Daily estimated PAEE from sedentary, light, moderate and vigorous intensities and total PAEE were not significantly different between the conditions. The condition by time of day interaction for sedentary time (P = 0.05) indicated that the girls spent 11.5 min/d more time sedentary in IBC compared with DBC during 15:30-bedtime (P = 0.04). Light PA was 19.8 min/d higher during DBC compared with IBC (P = 0.05), which was accumulated during wake-10:30 (P = 0.04) and 15:30-bedtime (P = 0.03). There were no significant differences in time spent in MPA or VPA between the conditions. Conclusions: Adolescent girls spent more time in light PA before 10:30 and after school and spent less time sedentary after school when a standardized breakfast was consumed daily compared with intermittently across seven days. However, breakfast manipulation did not affect estimated daily PAEE. 
Citation:
Zakrzewski-Fruer JK, Wells EK, Crawford NSG, Afeef SMO, Tolfrey K. (2018) 'Physical activity duration but not energy expenditure differs between daily and intermittent breakfast consumption in adolescent girls: a randomized crossover trial', Journal of Nutrition, 148 (2), pp.236-244.
Publisher:
Oxford University Press
Journal:
Journal of Nutrition
Issue Date:
27-Feb-2018
URI:
http://hdl.handle.net/10547/622535
DOI:
10.1093/jn/nxx055
Additional Links:
https://academic.oup.com/jn/article-abstract/148/2/236/4913042?redirectedFrom=fulltext
Type:
Article
Language:
en
ISSN:
0022-3166
Sponsors:
This study was funded by the British Academy/Leverhulme Trust.
Appears in Collections:
Sport and physical activity

Full metadata record

DC FieldValue Language
dc.contributor.authorZakrzewski-Fruer, Julia K.en
dc.contributor.authorWells, Emma K.en
dc.contributor.authorCrawford, Natasha S.G.en
dc.contributor.authorAfeef, Sahar M.O.en
dc.contributor.authorTolfrey, Keithen
dc.date.accessioned2018-03-09T09:24:30Z-
dc.date.available2018-03-09T09:24:30Z-
dc.date.issued2018-02-27-
dc.identifier.citationZakrzewski-Fruer JK, Wells EK, Crawford NSG, Afeef SMO, Tolfrey K. (2018) 'Physical activity duration but not energy expenditure differs between daily and intermittent breakfast consumption in adolescent girls: a randomized crossover trial', Journal of Nutrition, 148 (2), pp.236-244.en
dc.identifier.issn0022-3166-
dc.identifier.doi10.1093/jn/nxx055-
dc.identifier.urihttp://hdl.handle.net/10547/622535-
dc.description.abstractBackground: It is not known whether breakfast frequency affects physical activity (PA) in children or adolescents. Objective: This study examined the effect of daily compared with intermittent breakfast consumption on estimated PA energy expenditure (PAEE) in adolescent girls. Methods: Using a randomized crossover design, 27 girls (age 12.4 ± 0.5 y, body mass index 19.3 ± 3.0 kg∙m-2) completed two, 7-day conditions. A standardized breakfast (~1674 kJ) was consumed every day before 09:00 in the daily breakfast consumption (DBC) condition. The standardized breakfast was consumed on only three days before 09:00 in the intermittent breakfast consumption (IBC) condition alternating with breakfast omission on the remaining four days (i.e., only water consumed before 10:30). Combined heart rate-accelerometry was used to estimate PAEE throughout each condition. Statistical analyses were completed using condition by time of day repeated measures analysis of variance. The primary outcome was PAEE and the secondary outcome was time spent in PA. Results: Daily estimated PAEE from sedentary, light, moderate and vigorous intensities and total PAEE were not significantly different between the conditions. The condition by time of day interaction for sedentary time (P = 0.05) indicated that the girls spent 11.5 min/d more time sedentary in IBC compared with DBC during 15:30-bedtime (P = 0.04). Light PA was 19.8 min/d higher during DBC compared with IBC (P = 0.05), which was accumulated during wake-10:30 (P = 0.04) and 15:30-bedtime (P = 0.03). There were no significant differences in time spent in MPA or VPA between the conditions. Conclusions: Adolescent girls spent more time in light PA before 10:30 and after school and spent less time sedentary after school when a standardized breakfast was consumed daily compared with intermittently across seven days. However, breakfast manipulation did not affect estimated daily PAEE. en
dc.description.sponsorshipThis study was funded by the British Academy/Leverhulme Trust.en
dc.language.isoenen
dc.publisherOxford University Pressen
dc.relation.urlhttps://academic.oup.com/jn/article-abstract/148/2/236/4913042?redirectedFrom=fulltexten
dc.rightsWhite - archiving not formally supported-
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectphysical activityen
dc.subjectexerciseen
dc.subjectbreakfasten
dc.subjectchildrenen
dc.subjecthealthen
dc.subjectnutritionen
dc.subjectB400 Nutritionen
dc.titlePhysical activity duration but not energy expenditure differs between daily and intermittent breakfast consumption in adolescent girls: a randomized crossover trialen
dc.typeArticleen
dc.identifier.journalJournal of Nutritionen
dc.date.updated2018-03-05T09:34:09Z-
This item is licensed under a Creative Commons License
Creative Commons
All Items in UOBREP are protected by copyright, with all rights reserved, unless otherwise indicated.