Autoregulated and Non-Autoregulated Blood Flow Restriction on Acute Arterial Stiffness
This study aimed to investigate the acute effects of autoregulated and
non-autoregulated applied pressures during blood flow restriction resistance
exercise to volitional fatigue on indices of arterial stiffness using the Delfi
Personalized Tourniquet System. Following a randomized autoregulated or
non-autoregulated blood flow restriction familiarization session, 20 physically
active adults (23±5 years; 7 females) participated in three randomized
treatment-order sessions with autoregulated and non-autoregulated and no blood
flow restriction training. Participants performed four sets of dumbbell wall
squats to failure using 20% of one repetition maximum. Blood flow
restriction was performed with 60% of supine limb occlusion pressure.
Testing before and post-session included an ultrasonic scan of the carotid
artery, applanation tonometry, and blood pressure acquisition.Carotid-femoral pulse wave velocity increased in the non-autoregulated and no
blood flow restriction training groups following exercise while carotid-radial
pulse wave velocity increased in the no blood flow restriction training group
(all p<0.05). Carotid-femoral pulse wave velocity exhibited an
interaction effect between autoregulated and non-autoregulated blood flow
restriction in favor of autoregulated blood flow restriction (p<0.05).
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Source: International Journal of Sports Medicine - Category: Sports Medicine Authors: Rolnick, Nicholas Licameli, Nicholas Moghaddam, Masoud Marquette, Lisa Walter, Jessica Fedorko, Brent Werner, Tim Tags: Physiology & Biochemistry Source Type: research
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