title: [Validation of the Borg scale in participants with type 2 diabetes mellitus].
abstract: BACKGROUND
  Borg Rating of Perceived Exertion Scale (RPE) is a psychophysiological measurements that translates physical stimuli to a psychological construct, which is perceived exertion. Its use is simple and it represents the effort perception. Each number of the scale is associated with a heart rate or percentage of maximal oxygen consumption (VO2max), which estimates the intensity of exercise.
  
  
  OBJECTIVE
  To validate RPE scale in patients with type 2 diabetes mellitus (DM2).
  
  
  METHODS
  Thirty five DM2 participants with a median age of 59 years underwent an incremental exercise test in a treadmill with breath-by-breath analysis of oxygen consumption. After every three minute stage, the RPE scale was applied and correlated with oxygen consumption variables.
  
  
  RESULTS
  There was correlation coefficient of 0.91 between RPE score and VO2max. A RPE score of 11 corresponded to 52% of VO2max, a RPE score of 13 corresponded to 76% of VO2max, a RPE of 15 corresponded to 88% of VO2max and a RPE of 17 correspondent to a 100% of VO2max.
  
  
  CONCLUSIONS
  RPE Scale is valid in patients with type 2 diabetes as an estimate of the intensity of physical activity.
authors.affiliation: Servicio de Rehabilitación Cardiovascular, Pulmonar y Metabólica, Hospital Universitario, Universidad Nacional de Cuyo, Mendoza, Argentina.
authors.forename: Walter
authors.initials: W
authors.lastname: Rosales
authors.affiliation: Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile.
authors.forename: Cristian
authors.initials: C
authors.lastname: Cofré
authors.affiliation: Servicio de Clínica Médica, Hospital Universitario, Universidad de Cuyo, Mendoza, Argentina.
authors.forename: Cicchitti
authors.initials: C
authors.lastname: Alejandra
authors.affiliation: Servicio de Clínica Médica, Hospital Universitario, Universidad de Cuyo, Mendoza, Argentina.
authors.forename: Celina
authors.initials: C
authors.lastname: Bertona
authors.affiliation: Servicio de Clínica Médica, Hospital Universitario, Universidad de Cuyo, Mendoza, Argentina.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Vizcaya
authors.affiliation: Servicio de Clínica Médica, Hospital Universitario, Universidad de Cuyo, Mendoza, Argentina.
authors.forename: Joaquín
authors.initials: J
authors.lastname: González
authors.affiliation: Servicio de Clínica Médica, Hospital Universitario, Universidad de Cuyo, Mendoza, Argentina.
authors.forename: Jorge
authors.initials: J
authors.lastname: Bajuk
authors.affiliation: Servicio de Clínica Médica, Hospital Universitario, Universidad de Cuyo, Mendoza, Argentina.
authors.forename: Martín
authors.initials: M
authors.lastname: Rodríguez
mesh_terms: D000368:Aged; D003924:Diabetes Mellitus, Type 2 / Q000503:physiopathology* / Q000523:psychology; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D010465:Perception; D005082:Physical Exertion / Q000502:physiology*; D015203:Reproducibility of Results; D013997:Time Factors