PREDICTIVE EQUATION FOR BLOOD FLOW RESTRICTION TRAINING

ABSTRACT Introduction No research has investigated predictive equations for application in blood flow restriction (BFR) training using a cuff with a circumference of 18 cm for the lower limbs, and including age and sex as predictor variables. Objectives To develop an equation to predict cuff pressure levels for use in BFR training for the lower limbs. Methods A total of 51 adults (age 23.23 ± 5.24 years) of both sexes (males, n= 32; females, n= 19) underwent a series of tests and anthropometric (body mass, height, body mass index – BMI, and thigh circumference – TC) and hemodynamic (brachial systolic – SBP – and diastolic – DBP – blood pressure) measurements. The arterial occlusion pressure (AOP) of the lower limbs was measured using a Doppler probe. Results The predictive equation was developed based on a hierarchical linear regression model consisting of six blocks, corresponding to TC (β = 0.380; p = 0.005), SBP (β = 0.091; p = 0.482), age (β = 0.320; p = 0.015), and sex (β = -0.207; p = 0.105), which explained 39.7% of the variation in arterial occlusion pressure. DBP and BMI were not associated with AOP. As a result, the predictive equation is as follows: AOP (mmHg) = 65.290 + 1.110 (TC in cm) + 0.178 (SBP in mmHg) + 1.153 (age in years) – 7.984 (sex, 1 – male and 2 – female), reporting values of r = 0.630, r2 = 0.397 and SEE = 15,289. Conclusion Cuff pressure for BFR training of the lower limbs may be selected based on TC, SBP, age and sex, and thigh circumference is considered the main predictor. Level of Evidence III, Non-consecutive studies, or studies without consistently applied reference standard.

Bibliographic Details

Main Authors:	Cirilo-Sousa,Maria do Socorro, Lemos,Jiddu Bastos, Poderoso,Rodrigo, Araújo,Ravi Cirilo Targino de, Aniceto,Rodrigo Ramalho, Pereira,Piettra Moura Galvão, Araújo,Joamira Pereira, Lucena,Pedro Henriques Marques, Paz,Carlos Renato, Araújo Júnior,Adenilson Targino de
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira de Medicina do Exercício e do Esporte 2019
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-86922019000600494
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