@article{Shephard_2016, title={Regulating exercise intensity when heart-rate based prescription is compromised}, volume={8}, url={https://hfjc.library.ubc.ca/index.php/HFJC/article/view/188}, DOI={10.14288/hfjc.v8i2.188}, abstractNote={<p><em>Background: </em>Clinical conditions such as beta-blockade, cardiac conduction defects, use of a cardiac pacemaker, and cardiac transplantation preclude use of heart rate to regulate the intensity of prescribed exercise.</p><p><em>Purpose: </em>To evaluate the suggestion that Borg’s RPE may provide a valid alternative, and to weigh possible alternatives.</p><p><em>Methods: </em>A brief review of factors modifying RPE, and an analysis of RPE data obtained in patients following cardiac transplantation.</p><p><em>Results: </em>Many factors modify an individual’s perceptions of effort, and in consequence simply exercising to a fixed RPE can result in either too low an intensity to induce the required training, or a dangerously high intensity of exercise.</p><em>Conclusions: </em>RPE does not provide a safe method of regulating exercise after cardiac transplantation. A better alternative is to establish the individual’s oxygen cost of walking, and to prescribe a set walking distance to be covered in a set time, reserving the RPE for a fine-tuning of this prescription}, number={2}, journal={The Health & Fitness Journal of Canada}, author={Shephard, Roy J.}, year={2016}, month={Apr.}, pages={29–31} }