Monitoring athletic training status using the maximal rate of heart rate increase  Clint R. Bellenger, Rebecca L. Thomson, Peter R.C. Howe, Laura Karavirta, Jonathan D. Buckley  Journal of Science and Medicine in Sport  Volume 19, Issue 7, Pages 590-595 (July 2016) DOI: 10.1016/j.jsams.2015.07.006 Copyright © 2015 Sports Medicine Australia Terms and Conditions

Fig. 1 Mean HR response to cycling for 5min at 100W and running at 8km/h for all participants under all conditions (light training, heavy training and recovery period); comparison of mean rHRI, pre-exercise HR, steady-state HR and change in exercise HR between exercise modes. HR=heart rate, rHRI=maximal rate of heart rate increase. (a) moderate effect size, (b) small effect size, 1=almost certain chance of higher or lower values between exercise mode, 2=likely chance of higher or lower values between exercise mode, 3=possible chance of higher or lower values between exercise mode. Journal of Science and Medicine in Sport 2016 19, 590-595DOI: (10.1016/j.jsams.2015.07.006) Copyright © 2015 Sports Medicine Australia Terms and Conditions

Fig. 2 Relationships between changes in (a) rHRIcyc and absolute exercise performance, (b) rHRIcyc and relative exercise performance, (c) rHRIrun and absolute exercise performance and (d) rHRIrun and relative exercise performance that occurred after two weeks of light training followed by two weeks of heavy training. kJ=kiloJoules, kJ/kg=kiloJoules per kilogram, rHRIcyc=cycling maximal rate of heart rate increase, rHRIrun=running maximal rate of heart rate increase, Δ=change. Journal of Science and Medicine in Sport 2016 19, 590-595DOI: (10.1016/j.jsams.2015.07.006) Copyright © 2015 Sports Medicine Australia Terms and Conditions