Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/26228
Appears in Collections:Faculty of Health Sciences and Sport Journal Articles
Peer Review Status: Refereed
Title: The effect of low volume sprint interval training in patients with non-alcoholic fatty liver disease
Author(s): MacLean, Catriona
Dillon, John F
Babraj, John A
Vollaard, Niels
Contact Email: n.vollaard@stir.ac.uk
Keywords: SIT
all-out
NAFLD
NASH
liver function
physical function
Issue Date: 2018
Date Deposited: 29-Nov-2017
Citation: MacLean C, Dillon JF, Babraj JA & Vollaard N (2018) The effect of low volume sprint interval training in patients with non-alcoholic fatty liver disease. Physician and Sportsmedicine, 46 (1), pp. 87-92. https://doi.org/10.1080/00913847.2018.1411171
Abstract: Objectives: Exercise is an important part of disease management in patients with non-alcoholic fatty liver disease (NAFLD), but adherence to current exercise recommendations is poor. Novel low-volume sprint interval training (SIT) protocols with total training time commitments of ≤30 min per week have been shown to improve cardiometabolic risk and functional capacity in healthy sedentary participants, but the efficacy of such protocols in the management of NAFLD remains unknown. The aim of the present study was to examine whether a low-volume SIT protocol can be used to improve liver function, insulin resistance, body composition, physical fitness, cognitive function and general well-being in patients with NAFLD.  Methods: In the present study, 7 men and 2 women with NAFLD (age: 45±8 y, BMI: 28.7±4.1 kg·m−2) completed a 6-week control period followed by 6 weeks of twice-weekly SIT sessions (5-10×6-s ‘all-out’ cycle sprints). Body composition, blood pressure, liver function, metabolic function, functional capacity, cognitive function and quality of life were assessed at baseline, following the control period, and following the SIT intervention.  Results: Walking speed during the walk test (+12%), estimated V̇O2max (+8%), verbal fluency (+44%), and blood platelet count (+12%; all p<0.05) significantly increased during the control period. These measures remained significantly raised compared to baseline following the SIT intervention, but did not significantly change any further compared to the post-control time-point. Diastolic blood pressure decreased from 87±10 to 77±8 mm Hg from the end of the control period to the end of the SIT intervention (p<0.05).  Conclusion: This study does not support the use of 6 weeks of a low volume SIT protocol involving twice-weekly sessions with 5-10×6-s ‘all-out’ cycle sprints as an intervention for NAFLD disease management.
DOI Link: 10.1080/00913847.2018.1411171
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This is an Accepted Manuscript of an article published by Taylor & Francis Group in The Physician and Sportsmedicine on 29 Nov 2017, available online: http://www.tandfonline.com/10.1080/00913847.2018.1411171

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