Heterogeneous Regulation of Brain Blood Flow during Low-Intensity Resistance Exercise

PURPOSEThe present study was designed to explore to what extent low intensity resistance exercise- induced acute hypertension influences intracranial cerebral perfusion. METHODSTwelve healthy participants performed one-legged static knee extension exercise at 30 % maximal voluntary contraction for 2...

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Bibliographic Details
Published in:Medicine and science in sports and exercise 2016-09, Vol.48 (9), p.1829-1834
Main Authors: Hirasawa, Ai, Sato, Kohei, Yoneya, Marina, Sadamoto, Tomoko, Bailey, Damian M, Ogoh, Shigehiko
Format: Article
Language:English
Subjects:
Cardiac Output
Cerebrovascular Circulation - physiology
Exercise - physiology
Female
Hemodynamics
Humans
Hypertension
Male
Regional Blood Flow
Young Adult
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Summary:PURPOSEThe present study was designed to explore to what extent low intensity resistance exercise- induced acute hypertension influences intracranial cerebral perfusion. METHODSTwelve healthy participants performed one-legged static knee extension exercise at 30 % maximal voluntary contraction for 2 min. Blood flow to the internal and external carotid arteries (ICA/ECA) were evaluated by duplex ultrasonography. RESULTSICA blood flow increased and reached a plateau before stabilizing 60 sec into exercise despite continued increases in cardiac output and arterial blood pressure. ICA conductance significantly decreased by -14.4 ±13.8 % at the end of exercise (P
ISSN:0195-9131
1530-0315
DOI:10.1249/MSS.0000000000000948