Borg’s category ratio-scale (CR-10) is useful to predict the onset of blood lactate accumulation (OBLA) in young Mexicans adults, regardless their body mass

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Arnulfo Ramos-Jiménez Abraham Wall-Medrano Marco A. Hernández-Lepe Gregorio Chávez-Treviño Jaime Guereca-Arvizuo Rosa Patricia Hernández-Torres


Aim: To evaluate the predictive value of Borg’s category ratio-scale (CR-10; 1-10) toward the onset of blood lactate accumulation (OBLA). Methods: 91 young Mexicans performed three non-consecutive sub-maximal exercise tests. Heart rate (HR), blood lactate and oxygen uptake were recorded at each CR-10 rating. Regression equations, reliable HR and CR-10 cut-off points of OBLA were then calculated. Results: HR (86 beats/min) and CR-10 (4.5) predicted OBLA with the same certainty, regardless the subject’s body mass. CR-10, HR and oxygen uptake, independently explained more than 60% of the associated variance to OBLA. Conclusions: CR-10 is useful to predict OBLA with almost the same certainty that HR, regardless the subject’s body mass.

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RAMOS-JIMÉNEZ, Arnulfo et al. Borg’s category ratio-scale (CR-10) is useful to predict the onset of blood lactate accumulation (OBLA) in young Mexicans adults, regardless their body mass. CIENCIA ergo-sum, [S.l.], v. 26, n. 1, dic. 2018. ISSN 2395-8782. Disponible en: <>. Fecha de acceso: 17 ene. 2019 doi:
Ciencias de la salud humana


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