Results 1 to 10 of about 370 (80)

Extremes of cerebral blood flow during hypercapnic squat‐stand maneuvers [PDF]

Physiological Reports, 2021
Squat‐stand maneuvers (SSMs) are a popular method of inducing blood pressure (BP) oscillations to reliably assess dynamic cerebral autoregulation (dCA), but their effects on the cerebral circulation remain controversial.
Samuel C. Barnes, Victoria J. Haunton, Lucy Beishon, Osian Llwyd, Thompson G. Robinson, Ronney B. Panerai   +5 more
doaj   +2 more sources

Cerebral blood velocity responses during and after sprint interval exercise in healthy young adults [PDF]

Physiological Reports
This study investigated the middle (MCAv) and posterior (PCAv) cerebral artery blood velocity and end‐tidal carbon dioxide (PETCO2) responses during sprint interval exercise (SIE).
E. Scott, E. Langson‐Justice, O. Smail, A. B. Lester, R. Oliveira, C. J. A. Pugh, M. E. Weston, B. O. Bond   +7 more
doaj   +2 more sources

Sex differences in autonomic recovery following repeated sinusoidal resistance exercise

Physiological Reports, 2022
A simple bodyweight squat is sufficient to cause substantial stress on the autonomic nervous system (ANS) via ~30–50 mmHg blood pressure (BP) oscillations.
Joseph Carere, Joel S. Burma, Kailey T. Newel, Courtney M. Kennedy, Jonathan D. Smirl   +4 more
doaj   +1 more source

Machine Learning Models and Statistical Complexity to Analyze the Effects of Posture on Cerebral Hemodynamics

Entropy, 2022
The mechanism of cerebral blood flow autoregulation can be of great importance in diagnosing and controlling a diversity of cerebrovascular pathologies such as vascular dementia, brain injury, and neurodegenerative diseases.
Max Chacón, Hector Rojas-Pescio, Sergio Peñaloza, Jean Landerretche   +3 more
doaj   +1 more source

Cerebral blood flow regulation is not acutely altered after a typical number of headers in women footballers

Frontiers in Neurology, 2022
BackgroundThe repeated act of heading has been implicated in the link between football participation and risk of neurodegenerative disease, and acutely alters cerebrovascular outcomes in men.
Jacob Jack, Alex Woodgates, Oliver Smail, Felix Brown, Katie Lynam, Alice Lester, Genevieve Williams, Bert Bond   +7 more
doaj   +1 more source

Does oscillation size matter? Impact of added resistance on the cerebral pressure‐flow Relationship in females and males

Physiological Reports, 2022
Sinusoidal squat‐stand maneuvers (SSM) without resistance have been shown to produce ~30–50 mmHg swings in mean arterial pressure which are largely buffered in the brain via dynamic cerebral autoregulation (dCA). This study aimed to further elucidate how
Kailey T. Newel, Joel S. Burma, Joseph Carere, Courtney M. Kennedy, Jonathan D. Smirl   +4 more
doaj   +1 more source

Dynamic cerebral autoregulation across the cardiac cycle during 8 hr of recovery from acute exercise

Physiological Reports, 2020
Current protocols examining cerebral autoregulation (CA) parameters require participants to refrain from exercise for 12–24 hr, however there is sparse objective evidence examining the recovery trajectory of these measures following exercise across the ...
Joel S. Burma, Paige Copeland, Alannah Macaulay, Omeet Khatra, Alexander D. Wright, Jonathan D. Smirl   +5 more
doaj   +1 more source

Comparison of diurnal variation, anatomical location, and biological sex within spontaneous and driven dynamic cerebral autoregulation measures

Physiological Reports, 2020
Presently, the literature describing the influence of diurnal variation on dynamic cerebral autoregulation (dCA) metrics is sparse. Additionally, there is little data with respect to dCA comparisons between anterior/posterior circulation beds and ...
Joel S. Burma, Paige Copeland, Alannah Macaulay, Omeet Khatra, Jonathan D. Smirl   +4 more
doaj   +1 more source

Does depth of squat‐stand maneuver affect estimates of dynamic cerebral autoregulation?

Physiological Reports, 2020
Repeated squat‐stand maneuvers (SSM) are an effective way of measuring dynamic cerebral autoregulation (dCA), but the depth of SSM required to improve dCA estimations has never been studied.
Angus P. Batterham, Ronney B. Panerai, Thompson G. Robinson, Victoria J. Haunton   +3 more
doaj   +1 more source

Cerebral Autoregulation Is Disrupted Following a Season of Contact Sports Participation

Frontiers in Neurology, 2018
Repetitive subconcussive head impacts across a season of contact sports participation are associated with a number of deficits in brain function.
Alexander D. Wright, Alexander D. Wright, Alexander D. Wright, Alexander D. Wright, Jonathan D. Smirl, Kelsey Bryk, Kelsey Bryk, Sarah Fraser, Michael Jakovac, Paul van Donkelaar   +9 more
doaj   +1 more source