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dc.contributor.authorGrace, Fergalen
dc.contributor.authorHerbert, Peteren
dc.contributor.authorElliot, Adrian D.en
dc.contributor.authorRichards, Joanna C.en
dc.contributor.authorBeaumont, Alexanderen
dc.contributor.authorSculthorpe, Nicholasen
dc.date.accessioned2019-04-15T10:25:13Z
dc.date.available2019-04-15T10:25:13Z
dc.date.issued2017-05-13
dc.identifier.citationGrace F, Herbert P, Elliot A D, Richards J, Beaumont A, Sculthorpe N. (2018) 'High intensity interval training (HIIT) improves resting blood pressure, metabolic (MET) capacity and heart rate reserve without compromising cardiac function in sedentary aging men', Experimental Gerontology, 109 (), pp.75-81.en
dc.identifier.issn0531-5565
dc.identifier.pmid28511954
dc.identifier.doi10.1016/j.exger.2017.05.010
dc.identifier.urihttp://hdl.handle.net/10547/623237
dc.description.abstractBackground: This study examined a programme of pre-conditioning exercise with subsequent high intensity interval training (HIIT) on blood pressure, echocardiography, cardiac strain mechanics and maximal metabolic (MET) capacity in sedentary (SED) aging men compared with age matched masters athletes (LEX). Methods: Using a STROBE compliant observational design, 39 aging male participants (SED; n=22, aged 62.7± 5.2 yrs) (LEX; n = 17, aged= 61.1 ± 5.4 yrs) were recruited to a study that necessitated three distinct assessment phases; enrolment (Phase A), following pre-conditioning exercise in SED (Phase B), then following 6 weeks of HIIT performed once every five days by both groups before reassessment (Phase C). Hemodynamic, echocardiographic and cardiac strain mechanics were obtained at rest and maximal cardiorespiratory and chronotropic responses were obtained at each measurement phase. Results: The training intervention improved systolic, mean arterial blood pressure, rate pressure product and heart rate reserve (each P b 0.05) in SED and increased MET capacity in both SED and LEX (P b 0.01) which was amplified by HIIT. Echocardiography and cardiac strain measures were unremarkable apart from trivial increase to intra-ventricular septum diastole (IVSd) (P b 0.05) and decrease to left ventricular internal dimension diastole (LVId) (P b 0.05) in LEX following HIIT. Conclusions: A programme of preconditioning exercise with HIIT induces clinically relevant improvements in blood pressure, rate pressure product and encourages recovery of heart rate reserve in SED, while improving maximal MET capacity in both SED and LEX without inducing any pathological cardiovascular remodeling. These data add to the emerging repute of HIIT as a safe and promising exercise prescription to improve cardiovascular function and metabolic capacity in sedentary aging.
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S0531556516306003en
dc.rightsGreen - can archive pre-print and post-print or publisher's version/PDF
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectcardiorespiratory fitnessen
dc.subjectcardiac risk-factorsen
dc.subjecthigh intensity exerciseen
dc.subjecthigh intensity interval trainingen
dc.subjectHIITen
dc.subjectageingen
dc.subjectC600 Sports Scienceen
dc.titleHigh intensity interval training (HIIT) improves resting blood pressure, metabolic (MET) capacity and heart rate reserve without compromising cardiac function in sedentary aging menen
dc.typeArticleen
dc.contributor.departmentFederation Universityen
dc.contributor.departmentUniversity of Wales Trinity Saint Daviden
dc.contributor.departmentUniversity of Adelaideen
dc.contributor.departmentUniversity of Bedfordshireen
dc.contributor.departmentUniversity of the West of Scotlanden
dc.identifier.journalExperimental Gerontologyen
dc.date.updated2019-04-15T10:21:25Z
dc.description.noteopen access with cc licence
refterms.dateFOA2020-04-23T08:40:59Z
html.description.abstractBackground: This study examined a programme of pre-conditioning exercise with subsequent high intensity interval training (HIIT) on blood pressure, echocardiography, cardiac strain mechanics and maximal metabolic (MET) capacity in sedentary (SED) aging men compared with age matched masters athletes (LEX). Methods: Using a STROBE compliant observational design, 39 aging male participants (SED; n=22, aged 62.7± 5.2 yrs) (LEX; n = 17, aged= 61.1 ± 5.4 yrs) were recruited to a study that necessitated three distinct assessment phases; enrolment (Phase A), following pre-conditioning exercise in SED (Phase B), then following 6 weeks of HIIT performed once every five days by both groups before reassessment (Phase C). Hemodynamic, echocardiographic and cardiac strain mechanics were obtained at rest and maximal cardiorespiratory and chronotropic responses were obtained at each measurement phase. Results: The training intervention improved systolic, mean arterial blood pressure, rate pressure product and heart rate reserve (each P b 0.05) in SED and increased MET capacity in both SED and LEX (P b 0.01) which was amplified by HIIT. Echocardiography and cardiac strain measures were unremarkable apart from trivial increase to intra-ventricular septum diastole (IVSd) (P b 0.05) and decrease to left ventricular internal dimension diastole (LVId) (P b 0.05) in LEX following HIIT. Conclusions: A programme of preconditioning exercise with HIIT induces clinically relevant improvements in blood pressure, rate pressure product and encourages recovery of heart rate reserve in SED, while improving maximal MET capacity in both SED and LEX without inducing any pathological cardiovascular remodeling. These data add to the emerging repute of HIIT as a safe and promising exercise prescription to improve cardiovascular function and metabolic capacity in sedentary aging.


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