Open Access
CC BY-NC-ND 4.0 · Int J Sports Med 2024; 45(01): 23-32
DOI: 10.1055/a-2152-0015
Physiology & Biochemistry

Autoregulated and Non-Autoregulated Blood Flow Restriction on Acute Arterial Stiffness

Nicholas Rolnick
1   Exercise Science, Lehman College, Bronx, United States
2   Physical Therapy, The Human Performance Mechanic, Manhattan, United States
,
Nicholas Licameli
3   Physical Therapy, Strength Together, Inc., Nutley, United States
,
Masoud Moghaddam
4   Physical Therapy, University of Maryland Eastern Shore, Princess Anne, United States
,
Lisa Marquette
5   Exercise Science, Salisbury University, Salisbury, United States
,
Jessica Walter
5   Exercise Science, Salisbury University, Salisbury, United States
,
Brent Fedorko
5   Exercise Science, Salisbury University, Salisbury, United States
,
Tim Werner
5   Exercise Science, Salisbury University, Salisbury, United States
› Author Affiliations
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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.

Supplementary Material



Publication History

Received: 08 May 2023

Accepted: 05 August 2023

Accepted Manuscript online:
10 August 2023

Article published online:
16 October 2023

© 2023. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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