• Misperception: No evidence to dismiss RPE as regulator of moderate-intensity exercise

      Eston, Roger; Coquart, J.; Lamb, Kevin L.; Parfitt, Gaynor; University of South Australia; Universite´ de Rouen; University of Chester (American College of Sports Medicine, 2015-12-01)
      Dear Editor-in-Chief, Shaykevich et al. (7) demonstrate the efficacy of auditory feedback anchored at 75% of age-predicted HRmax to regulate intensity (claimed as ‘‘moderate’’) during several 20-min bouts of cycling. Their technical approach is novel, but 76% HRmax is the upper limit of moderate intensity, so given the large error in age-predicted HRmax, it is unlikely that their exercise bandwidth was ‘‘moderate’’ for all participants. This is not our major concern, but it reveals one among other inaccuracies: the most serious include training, interpretation, and inferences relating to the RPE.