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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Am J Cardiol. 2015 Jul 21;116(7):1093–1100. doi: 10.1016/j.amjcard.2015.06.038

Figure 2. Relationship between renal function and chronotropic response to exercise in patients with heart failure and preserved ejection fraction.

Figure 2

(A) Probability of chronotropic incompetence across the spectrum of glomerular filtration rate. (B) Percent heart rate reserve versus glomerular filtration rate. CI = chronotropic incompetence; eGFR = estimated glomerular filtration rate; HR = heart rate; LOWESS = locally-weighted smoothed scatterplot