Appetite and gut hormone responses to moderate-intensity continuous exercise versus high-intensity interval exercise, in normoxic and hypoxic conditions

2.50
Hdl Handle:
http://hdl.handle.net/10547/582436
Title:
Appetite and gut hormone responses to moderate-intensity continuous exercise versus high-intensity interval exercise, in normoxic and hypoxic conditions
Authors:
Bailey, Daniel Paul ( 0000-0003-3772-630X ) ; Smith, Lindsey Rachel; Chrismas, Bryna C.; Taylor, Lee; Stensel, David J.; Deighton, Kevin; Douglas, Jessica A.; Kerr, Catherine J.
Abstract:
This study investigated the effects of continuous moderate-intensity exercise (MIE) and high-intensity interval exercise (HIIE) in combination with short exposure to hypoxia on appetite and plasma concentrations of acylated ghrelin, peptide YY (PYY), and glucagon-like peptide-1 (GLP-1). Twelve healthy males completed four, 2.6 h trials in a random order: (1) MIE-normoxia, (2) MIE-hypoxia, (3) HIIE-normoxia, and (4) HIIE-hypoxia. Exercise took place in an environmental chamber. During MIE, participants ran for 50 min at 70% of altitude-specific maximal oxygen uptake (View the MathML sourceV˙O2max) and during HIIE performed 6 × 3 min running at 90% View the MathML sourceV˙O2max interspersed with 6 × 3 min active recovery at 50% View the MathML sourceV˙O2max with a 7 min warm-up and cool-down at 70% View the MathML sourceV˙O2max (50 min total). In hypoxic trials, exercise was performed at a simulated altitude of 2980 m (14.5% O2). Exercise was completed after a standardised breakfast. A second meal standardised to 30% of participants' daily energy requirements was provided 45 min after exercise. Appetite was suppressed more in hypoxia than normoxia during exercise, post-exercise, and for the full 2.6 h trial period (linear mixed modelling, p < 0.05). Plasma acylated ghrelin concentrations were lower in hypoxia than normoxia post-exercise and for the full 2.6 h trial period (p < 0.05). PYY concentrations were higher in HIIE than MIE under hypoxic conditions during exercise (p = 0.042). No differences in GLP-1 were observed between conditions (p > 0.05). These findings demonstrate that short exposure to hypoxia causes suppressions in appetite and plasma acylated ghrelin concentrations. Furthermore, appetite responses to exercise do not appear to be influenced by exercise modality.
Affiliation:
University of Bedfordshire; Oxford Brookes University; Loughborough University
Citation:
Bailey, D.P., Smith, L.R., Chrismas, B.C., Taylor, L., Stensel, D.J., Deighton, K., Douglas, J.A., Kerr, C.J. (2015) 'Appetite and gut hormone responses to moderate-intensity continuous exercise versus high-intensity interval exercise, in normoxic and hypoxic conditions' Appetite 89:237
Publisher:
Elsevier
Journal:
Appetite
Issue Date:
Jun-2015
URI:
http://hdl.handle.net/10547/582436
DOI:
10.1016/j.appet.2015.02.019
PubMed ID:
25700630
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0195666315000665
Type:
Article
Language:
en
ISSN:
0195-6663
Appears in Collections:
Physical Activity and Health

Full metadata record

DC FieldValue Language
dc.contributor.authorBailey, Daniel Paulen
dc.contributor.authorSmith, Lindsey Rachelen
dc.contributor.authorChrismas, Bryna C.en
dc.contributor.authorTaylor, Leeen
dc.contributor.authorStensel, David J.en
dc.contributor.authorDeighton, Kevinen
dc.contributor.authorDouglas, Jessica A.en
dc.contributor.authorKerr, Catherine J.en
dc.date.accessioned2015-11-20T11:37:33Zen
dc.date.available2015-11-20T11:37:33Zen
dc.date.issued2015-06en
dc.identifier.citationBailey, D.P., Smith, L.R., Chrismas, B.C., Taylor, L., Stensel, D.J., Deighton, K., Douglas, J.A., Kerr, C.J. (2015) 'Appetite and gut hormone responses to moderate-intensity continuous exercise versus high-intensity interval exercise, in normoxic and hypoxic conditions' Appetite 89:237en
dc.identifier.issn0195-6663en
dc.identifier.pmid25700630en
dc.identifier.doi10.1016/j.appet.2015.02.019en
dc.identifier.urihttp://hdl.handle.net/10547/582436en
dc.description.abstractThis study investigated the effects of continuous moderate-intensity exercise (MIE) and high-intensity interval exercise (HIIE) in combination with short exposure to hypoxia on appetite and plasma concentrations of acylated ghrelin, peptide YY (PYY), and glucagon-like peptide-1 (GLP-1). Twelve healthy males completed four, 2.6 h trials in a random order: (1) MIE-normoxia, (2) MIE-hypoxia, (3) HIIE-normoxia, and (4) HIIE-hypoxia. Exercise took place in an environmental chamber. During MIE, participants ran for 50 min at 70% of altitude-specific maximal oxygen uptake (View the MathML sourceV˙O2max) and during HIIE performed 6 × 3 min running at 90% View the MathML sourceV˙O2max interspersed with 6 × 3 min active recovery at 50% View the MathML sourceV˙O2max with a 7 min warm-up and cool-down at 70% View the MathML sourceV˙O2max (50 min total). In hypoxic trials, exercise was performed at a simulated altitude of 2980 m (14.5% O2). Exercise was completed after a standardised breakfast. A second meal standardised to 30% of participants' daily energy requirements was provided 45 min after exercise. Appetite was suppressed more in hypoxia than normoxia during exercise, post-exercise, and for the full 2.6 h trial period (linear mixed modelling, p < 0.05). Plasma acylated ghrelin concentrations were lower in hypoxia than normoxia post-exercise and for the full 2.6 h trial period (p < 0.05). PYY concentrations were higher in HIIE than MIE under hypoxic conditions during exercise (p = 0.042). No differences in GLP-1 were observed between conditions (p > 0.05). These findings demonstrate that short exposure to hypoxia causes suppressions in appetite and plasma acylated ghrelin concentrations. Furthermore, appetite responses to exercise do not appear to be influenced by exercise modality.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0195666315000665en
dc.rightsArchived with thanks to Appetiteen
dc.subjecthypoxiaen
dc.subjecthigh altitude anorexiaen
dc.subjecthigh-intensity exerciseen
dc.subjectappetite-regulating hormonesen
dc.subjectacylated ghrelinen
dc.subjectC600 Sports Scienceen
dc.subjectappetiteen
dc.titleAppetite and gut hormone responses to moderate-intensity continuous exercise versus high-intensity interval exercise, in normoxic and hypoxic conditionsen
dc.typeArticleen
dc.contributor.departmentUniversity of Bedfordshireen
dc.contributor.departmentOxford Brookes Universityen
dc.contributor.departmentLoughborough Universityen
dc.identifier.journalAppetiteen

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