Pressor Responses To High And Low-intensity Continuous Or Interval Cycling With/without Blood Flow Restriction.

Galletti, Bianca A.R.; Batista, Francisco Amadis; Domingos-Gomes, Jarbas Rállison; Freitas, Eduardo; Pereira, Piettra Moura Galvão; Batista, Gilmário Ricarte; Elsangedy, Hassan Mohamed; Cirilo-Sousa, Maria S.; Aniceto, Rodrigo Ramalho

doi:10.1249/01.mss.0000517549.89229.be

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“…Another major issue related to pBFR prescription, and which influences the pressure percentage is related to the elastic’s material composition and architecture. We use 25% and 30% elastic restraint percentages in our laboratory [ 33 , 37 , 42 ], while other laboratories use 10% and 20% [ 41 ], and 15% [ 18 ], based on the circumference of the limb at rest. This difference is related to the elastics used; the elastic knee wrap (Harbinger Red-Line, Fairfield, CA, USA; 7.6 cm width) used in our laboratory [ 33 , 37 , 42 ] and in various studies [ 8 – 10 , 13 , 19 ] consists of a single layer of elastic rubber, making it possible to stretch the elastic to 35% of the initial length in a practical way.…”

Section: Introductionmentioning

confidence: 99%

“…We use 25% and 30% elastic restraint percentages in our laboratory [ 33 , 37 , 42 ], while other laboratories use 10% and 20% [ 41 ], and 15% [ 18 ], based on the circumference of the limb at rest. This difference is related to the elastics used; the elastic knee wrap (Harbinger Red-Line, Fairfield, CA, USA; 7.6 cm width) used in our laboratory [ 33 , 37 , 42 ] and in various studies [ 8 – 10 , 13 , 19 ] consists of a single layer of elastic rubber, making it possible to stretch the elastic to 35% of the initial length in a practical way. On the other hand, the elastic wrap (Custom Built (No Manufacturer); 5 cm width) used in the study by Abe et al [ 41 ] consists of three layers of elastic rubber with a practical possibility of stretching up to approximately 30% of the initial length.…”

Section: Introductionmentioning

confidence: 99%

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Practical Blood Flow Restriction Training: New Methodological Directions for Practice and Research

Aniceto¹,

Leandro²

2022

Sports Med - Open

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Most studies with blood flow restriction (BFR) training have been conducted using devices capable of regulating the restriction pressure, such as pneumatic cuffs. However, this may not be a viable option for the general population who exercise in gyms, squares and sports centers. Thinking about this logic, practical blood flow restriction (pBFR) training was created in 2009, suggesting the use of elastic knee wraps as an alternative to the traditional BFR, as it is low cost, affordable and practical. However, unlike traditional BFR training which seems to present a consensus regarding the prescription of BFR pressure based on arterial occlusion pressure (AOP), studies on pBFR training have used different techniques to apply the pressure/tension exerted by the elastic wrap. Therefore, this Current Opinion article aims to critically and chronologically examine the techniques used to prescribe the pressure exerted by the elastic wrap during pBFR training. In summary, several techniques were found to apply the elastic wrap during pBFR training, using the following as criteria: application by a single researcher; stretching of the elastic (absolute and relative overlap of the elastic); the perceived tightness scale; and relative overlap of the elastic based on the circumference of the limbs. Several studies have shown that limb circumference seems to be the greatest predictor of AOP. Therefore, we reinforce that applying the pressure exerted by the elastic for pBFR training based on the circumference of the limbs is an excellent, valid and safe technique.

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