Lower middle cerebral artery blood velocity during low-volume high-intensity interval exercise in chronic stroke.

ABSTRACT: High-intensity interval training (HIIE) may present unique challenges to the cerebrovascular system in individuals post-stroke. We hypothesized lower middle cerebral artery blood velocity (MCAv) in individuals post-stroke: 1) during 10 minutes of HIIE, 2) immediately following HIIE, and 3) 30 minutes after HIIE, compared to age- and sex-matched controls (CON). We used a recumbent stepper submaximal exercise test to determine workloads for high-intensity and active recovery. Our low volume HIIE protocol consisted of 1-minute intervals for 10 minutes. During HIIE, we measured MCAv, mean arterial pressure (MAP), heart rate (HR), and end tidal carbon dioxide (P_ETCO₂). We assessed carotid-femoral pulse wave velocity as a measure of arterial stiffness. Fifty participants co

SUBMITTER: Whitaker AA 

PROVIDER: S-EPMC11197145 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature