Effects of interrupting prolonged sitting with high-intensity physical activity on postprandial metabolism

2.50
Hdl Handle:
http://hdl.handle.net/10547/622488
Title:
Effects of interrupting prolonged sitting with high-intensity physical activity on postprandial metabolism
Authors:
Orton, Charlie J.
Abstract:
Aims The aim of this thesis was to explore the effects of interrupting prolonged sitting with high-intensity activity on cardiometabolic risk markers. Methods In study 1, participants completed 3, 8 hour trials: 1) uninterrupted sitting (SIT) 2) continuous moderate-intensity activity followed by sitting, and 3) sitting interrupted with hourly high-intensity activity (SIT-ACT). In study 2, participants completed 3, 6.5 hour trials: 1) SIT, 2) a continuous high-intensity interval exercise session followed by sitting (CON-HIE), and 3) sitting interrupted with high-intensity activity bouts (SIT-HIE). Postprandial incremental area under the curve (iAUC) was calculated for cardiometabolic risk markers and compared between conditions. Data are mean (95% confidence intervals). Results In study 1, glucose iAUC was not different between conditions (p= 0.606). Triglyceride (TG) iAUC was lower and high-density lipoprotein was higher in SIT-ACT than SIT (p=<0.05). In study 2, glucose iAUC was significantly lower in SIT-HIE than SIT (p=0.026), while TG iAUC was significantly lower in CON-HIE than SIT (p=0.014). Conclusion Study 1 observed beneficial TG and HDL responses to interrupting sitting with high-intensity activity. Study 2 observed suppressed glucose in response to interrupting sitting with high-intensity activity, but postprandial TG was reduced only in response to a high-intensity interval exercise session.
Citation:
Orton, C.J. (2017) 'Effects of interrupting prolonged sitting with high-intensity physical activity on postprandial metabolism'. MSc by research thesis. University of Bedfordshire.
Publisher:
University of Bedfordshire
Issue Date:
Jan-2017
URI:
http://hdl.handle.net/10547/622488
Type:
Thesis or dissertation
Language:
en
Description:
A thesis submitted to the University of Bedfordshire, in fulfilment of the requirements for the degree of MSc by Research
Appears in Collections:
Masters e-theses

Full metadata record

DC FieldValue Language
dc.contributor.authorOrton, Charlie J.en
dc.date.accessioned2018-02-12T11:27:12Z-
dc.date.available2018-02-12T11:27:12Z-
dc.date.issued2017-01-
dc.identifier.citationOrton, C.J. (2017) 'Effects of interrupting prolonged sitting with high-intensity physical activity on postprandial metabolism'. MSc by research thesis. University of Bedfordshire.en
dc.identifier.urihttp://hdl.handle.net/10547/622488-
dc.descriptionA thesis submitted to the University of Bedfordshire, in fulfilment of the requirements for the degree of MSc by Researchen
dc.description.abstractAims The aim of this thesis was to explore the effects of interrupting prolonged sitting with high-intensity activity on cardiometabolic risk markers. Methods In study 1, participants completed 3, 8 hour trials: 1) uninterrupted sitting (SIT) 2) continuous moderate-intensity activity followed by sitting, and 3) sitting interrupted with hourly high-intensity activity (SIT-ACT). In study 2, participants completed 3, 6.5 hour trials: 1) SIT, 2) a continuous high-intensity interval exercise session followed by sitting (CON-HIE), and 3) sitting interrupted with high-intensity activity bouts (SIT-HIE). Postprandial incremental area under the curve (iAUC) was calculated for cardiometabolic risk markers and compared between conditions. Data are mean (95% confidence intervals). Results In study 1, glucose iAUC was not different between conditions (p= 0.606). Triglyceride (TG) iAUC was lower and high-density lipoprotein was higher in SIT-ACT than SIT (p=<0.05). In study 2, glucose iAUC was significantly lower in SIT-HIE than SIT (p=0.026), while TG iAUC was significantly lower in CON-HIE than SIT (p=0.014). Conclusion Study 1 observed beneficial TG and HDL responses to interrupting sitting with high-intensity activity. Study 2 observed suppressed glucose in response to interrupting sitting with high-intensity activity, but postprandial TG was reduced only in response to a high-intensity interval exercise session.en
dc.language.isoenen
dc.publisherUniversity of Bedfordshireen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectC600 Sports Scienceen
dc.subjectprolonged sittingen
dc.subjectsittingen
dc.subjectpostprandial glycaemiaen
dc.subjectpostprandial insulinaemiaen
dc.subjectpostprandial lipaemiaen
dc.subjectglucoseen
dc.subjectinsulinen
dc.subjecttriglyceridesen
dc.subjecthigh-density lipoproteinsen
dc.subjecthigh-intensity exerciseen
dc.subjecthigh-intensity activityen
dc.subjectcontinuous moderate-intensity activityen
dc.titleEffects of interrupting prolonged sitting with high-intensity physical activity on postprandial metabolismen
dc.typeThesis or dissertationen
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.