Continuous measurement of breathlessness during exercise: validity, reliability, and responsiveness.

  title={Continuous measurement of breathlessness during exercise: validity, reliability, and responsiveness.},
  author={Donald A. Mahler and Roberto Mej{\'i}a-Alfaro and Joseph P Ward and John C. Baird},
  journal={Journal of applied physiology},
  volume={90 6},
A continuous method for recording changes in breathlessness (dyspnea) during exercise is introduced and compared with the traditional discrete method. In study 1, a category-rating scale was presented on a computer screen, and 14 healthy, young female subjects exercised on a cycle ergometer until exhaustion. Two approaches were used to obtain ratings of breathlessness: a discrete method, in which subjects gave single judgments every minute, and a continuous method, in which subjects throughout… CONTINUE READING
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