The acute cardiorespiratory and cerebrovascular response to resistance exercise

Research output: Contribution to journalReview articlepeer-review

Authors

External organisations

  • Massey University

Abstract

Resistance exercise (RE) is a popular modality for the general population and athletes alike, due to the numerous benefits of regular participation. The acute response to dynamic RE is characterised by temporary and bidirectional physiological extremes, not typically seen in continuous aerobic exercise (e.g. cycling) and headlined by phasic perturbations in blood pressure that challenge cerebral blood flow (CBF) regulation. Cerebral autoregulation has been heavily scrutinised over the last decade with new data challenging the effectiveness of this intrinsic flow regulating mechanism, particularly to abrupt changes in blood pressure over the course of seconds (i.e. dynamic cerebral autoregulation), like those observed during RE. Acutely, RE can challenge CBF regulation, resulting in adverse responses (e.g. syncope). Compared with aerobic exercise, RE is relatively understudied, particularly high-intensity dynamic RE with a concurrent Valsalva manoeuvre (VM). However, the VM alone challenges CBF regulation and generates additional complexity when trying to dissociate the mechanisms underpinning the circulatory response to RE. Given the disparate circulatory response between aerobic and RE, primarily the blood pressure profiles, regulation of CBF is ostensibly different. In this review, we summarise current literature and highlight the acute physiological responses to RE, with a focus on the cerebral circulation.

Bibliographic note

Publisher Copyright: © 2021, The Author(s).

Details

Original languageEnglish
Article number36
Number of pages19
JournalSports Medicine - Open
Volume7
Issue number1
Publication statusPublished - 27 May 2021

Keywords

  • Blood pressure, Cerebral blood flow, Resistance exercise, Valsalva manoeuvre