Impact of eight weeks of repeated ischaemic preconditioning on brachial artery and cutaneous microcirculatory function in healthy males.
SourceEuropean Journal of Preventive Cardiology, 22, 8, (2015), pp. 1083-7
01 augustus 2015
Article / Letter to editor
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European Journal of Preventive Cardiology
SubjectRadboudumc 16: Vascular damage RIHS: Radboud Institute for Health Sciences
BACKGROUND: Ischaemic preconditioning has well-established cardiac and vascular protective effects. Short interventions (one week) of daily ischaemic preconditioning episodes improve conduit and microcirculatory function. This study examined whether a longer (eight weeks) and less frequent (three per week) protocol of repeated ischaemic preconditioning improves vascular function. METHODS: Eighteen males were randomly allocated to either ischaemic preconditioning (22.4 +/- 2.3 years, 23.7 +/- 3.1 kg/m(2)) or a control intervention (26.0 +/- 4.8 years, 26.4 +/- 1.9 kg/m(2)). Brachial artery endothelial-dependent (FMD), forearm cutaneous microvascular function and cardiorespiratory fitness were assessed at zero, two and eight weeks. RESULTS: A greater improvement in FMD was evident following ischaemic preconditioning training compared with control at weeks 2 (2.24% (0.40, 4.08); p=0.02) and 8 (1.11% (0.13, 2.10); p=0.03). Repeated ischaemic preconditioning did not change cutaneous microcirculatory function or fitness. CONCLUSIONS: These data indicate that a feasible and practical protocol of regular ischaemic preconditioning episodes improves endothelial function in healthy individuals within two weeks, and these effects persist following repeated ischaemic preconditioning for eight weeks.
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