. Author manuscript; available in PMC: 2011 Sep 7.

Published in final edited form as: J Am Coll Cardiol. 2010 Sep 7;56(11):845–854. doi: 10.1016/j.jacc.2010.03.077

Table 4.

Relationships between Reserve and Peak exercise capacity or Symptoms at matched low level workload (20W)

	Pearson r	p
*Peak VO2*
Chronotropic reserve (ΔHR)	0.70	<0.0001
Contractile reserve (ΔPWRI)	0.73	<0.0001
Endothelial function (Log RHI)	0.43	0.003
Vascular reserve (ΔSVRI)	−0.40	0.009
Vascular reserve (Δ Log PAT)	0.52	0.0007
Coupling reserve (ΔEa/Ees)	−0.51	0.0006
*20W Borg Fatigue*
Chronotropic reserve (ΔHR)	−0.37	0.007
Contractile reserve (ΔPWRI)	−0.44	0.004
Endothelial function (Log RHI)	−0.52	0.0002
Vascular reserve (ΔSVRI)	0.37	0.02
Vascular reserve (Δ Log PAT)	−0.47	0.003
Coupling reserve (ΔEa/Ees)	0.52	0.0006
*20W Borg Dyspnea*
Chronotropic reserve (ΔHR)	−0.48	0.0005
Contractile reserve (ΔPWRI)	−0.61	<0.0001
Endothelial function (Log RHI)	−0.39	0.007
Vascular reserve (ΔSVRI)	0.37	0.02
Vascular reserve (Δ Log PAT)	−0.32	0.052
Coupling reserve (ΔEa/Ees)	0.49	0.001