Autoregulated and Non-Autoregulated Blood Flow Restriction on Acute Arterial Stiffness
Abstract
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). Autoregulated blood flow restriction training does not influence indices of arterial stiffness while non-autoregulated and no blood flow restriction training increases central stiffness.
Faculty Members
- Tim Werner - Exercise Science, Salisbury University, Salisbury, United States
- Nicholas Licameli - Physical Therapy, Strength Together, Inc., Nutley, United States
- Masoud Moghaddam - Physical Therapy, University of Maryland Eastern Shore, Princess Anne, United States
- Lisa Marquette - Exercise Science, Salisbury University, Salisbury, United States
- Nicholas Rolnick - Exercise Science, Lehman College, Bronx, United StatesPhysical Therapy, The Human Performance Mechanic, Manhattan, United States
- Brent Fedorko - Exercise Science, Salisbury University, Salisbury, United States
- Jessica Walter - Exercise Science, Salisbury University, Salisbury, United States
Themes
- arterial stiffness
- safety of training methods
- blood flow restriction training
- autoregulated vs non-autoregulated methods
- effects of exercise on cardiovascular health
Categories
- Biochemistry
- Biochemistry, biophysics, and molecular biology
- Biochemistry and molecular biology
- Biophysics
- Physiology, oncology and cancer biology
- Physiology, general
- Health sciences, general
- Health sciences
- Biological and biomedical sciences
- Molecular biology
- Health sciences, other
- Exercise science and kinesiology
- Exercise physiology and kinesiology