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Interface pressure, perceptual, and mean arterial pressure responses to different blood flow restriction systems
Author(s) -
Hughes L.,
Rosenblatt B.,
Gissane C.,
Paton B.,
Patterson S. D.
Publication year - 2018
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/sms.13092
Subject(s) - mean arterial pressure , blood flow restriction , blood pressure , medicine , cardiology , cuff , sphygmomanometer , biomedical engineering , forearm , tourniquet , anesthesia , surgery , heart rate , resistance training
This study examined the cuff to limb interface pressure during blood flow restriction ( BFR ), and the perceptual and mean arterial pressure responses, in different BFR systems. Eighteen participants attended three experimental sessions in a randomised, crossover, counterbalanced design. Participants underwent inflations at 40% and 80% limb occlusive pressure ( LOP ) at rest and completed 4 sets of unilateral leg press exercise at 30% of one repetition maximum with BFR at 80% LOP . Different BFR systems were used each session: an automatic rapid‐inflation ( RI ), automatic personalized tourniquet ( PT ) and manual handheld pump and sphygmomanometer ( HS ) system. Interface pressure was measured using a universal interface device with pressure sensors. Perceived exertion and pain were measured after each set, mean arterial pressure ( MAP ) was measured pre‐, 1‐minute post‐ and 5‐minutes post‐exercise. Interface pressure was lower than the set pressure in all BFR systems at rest ( P < .05). Interface pressure was, on average, 10 ± 8 and 48 ± 36 mm Hg higher than the set pressure in the RI and HS system ( P < .01), with no differences observed in the PT system ( P > .05), during exercise. Pain and exertion were greater in sets 3 and 4 in the RI and HS system compared to the PT system ( P < .05). MAP was higher in the RI and HS system compared to the PT system at 1‐minute and 5‐minutes post‐exercise ( P < .05). BFR systems applying higher pressures amplify mean arterial pressure and perceptual responses. Automatic BFR systems appear to regulate pressure effectively within an acceptable range during BFR exercise.