Evidence that rating of perceived exertion growth during fatiguing tasks is scalar and independent of exercise mode - Meyer, H.; Bruenig, J.; Cortis, C.; de Koning, J. J.; Doberstein, S. T.; Fusco, A.; Mikat, R. P.; Porcari, J. P.; Wright, G.; Foster, C. (International Journal of Sports Physiology and Performance, 2022)