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dc.contributor.authorWinzer, Brooke M.
dc.contributor.authorParatz, Jennifer D.
dc.contributor.authorWhitehead, Jonathan P.
dc.contributor.authorWhiteman, David C.
dc.contributor.authorReeves, Marina M.
dc.date.accessioned2018-01-19T05:17:51Z
dc.date.available2018-01-19T05:17:51Z
dc.date.issued2015
dc.identifier.issn1932-6203
dc.identifier.doi10.1371/journal.pone.0117922
dc.identifier.urihttp://hdl.handle.net/10072/172220
dc.description.abstractObjective To investigate the feasibility and safety of a 24-week exercise intervention, compared to control, in males with Barrett’s oesophagus, and to estimate the effect of the intervention, compared to control, on risk factors associated with oesophageal adenocarcinoma development. Methods A randomized controlled trial of an exercise intervention (60 minutes moderate-intensity aerobic and resistance exercise five days/week over 24 weeks; one supervised and four unsupervised sessions) versus attention control (45 minutes stretching five days/week over 24 weeks; one supervised and four unsupervised sessions) in inactive, overweight/obese (25.0–34.9 kg/m2) males with Barrett’s oesophagus, aged 18–70 years. Primary outcomes were obesity-associated hormones relevant to oesophageal adenocarcinoma risk (circulating concentrations of leptin, adiponectin, interleukin-6, tumour necrosis factor-alpha, Creactive protein, and insulin resistance [HOMA]). Secondary outcomes included waist circumference, body composition, fitness, strength and gastro-oesophageal reflux symptoms. Outcomes were measured at baseline and 24-weeks. Intervention effects were analysed using generalised linear models, adjusting for baseline value. Results Recruitment was difficult in this population with a total of 33 participants recruited (target sample size: n = 80); 97% retention at 24-weeks. Adherence to the exercise protocol was moderate. No serious adverse events were reported. A statistically significant intervention effect (exercise minus control) was observed for waist circumference (-4.5 [95%CI -7.5, -1.4] cm; p < 0.01). Effects on primary outcomes were not statistically significant. Conclusion This small, exploratory trial provides important information to inform future trial development including recruitment rates and estimates of effect sizes on outcomes related to oesophageal adenocarcinoma risk. Future trials should investigate a combined dietary and exercise intervention to achieve greater weight loss in this population and relax inclusion criteria to maximize recruitment.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherPublic Library of Sciences
dc.relation.ispartofpagefrome0117922-1
dc.relation.ispartofpagetoe0117922-17
dc.relation.ispartofissue2
dc.relation.ispartofjournalPLoS One
dc.relation.ispartofvolume10
dc.subject.fieldofresearchClinical Sciences not elsewhere classified
dc.subject.fieldofresearchcode110399
dc.titleThe feasibility of an exercise intervention in males at risk of oesophageal adenocarcinoma: A randomized controlled trial
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.description.versionPublished
gro.rights.copyright© 2015 Winzer et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
gro.hasfulltextFull Text
gro.griffith.authorParatz, Jenny D.


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