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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Am Heart J. 2009 Oct;158(4 Suppl):S6–S15. doi: 10.1016/j.ahj.2009.07.018

Table 3.

Cardiopulmonary testing assessments

Parameter Total ----------------------Age---------------------- P value
<60 60–69 ≥70
Totals (N) 2260 1181 614 465
Resting HR (bpm) 70 (63–79) 72 (64–80) 68 (61–75) 69 (61–76) <0.001
Max HR (bpm) 120 (104–134) 125 (111–141) 115 (102–130) 110 (95–122) <0.001
Peak VO2 (mL/kg/min) 14.4 (11.5–17.7) 15.6 (12.3–18.8) 14.1 (11.5–17.2) 12.8 (10.0–15.4) <0.001
VE/VCO2 slope 32.6 (28.1–38.5) 31.0 (26.9–35.8) 32.9 (28.9–38.8) 36.9 (31.8–42.9) <0.001
RER 1.09 (1.02–1.16) 1.09 (1.02–1.16) 1.09 (1.01–1.16) 1.09 (1.02–1.16) 0.91
O2 pulse (mL/heart beat) 0.12 (0.10–0.15) 0.12 (0.10–0.15) 0.13 (0.10–0.15) 0.12 (0.10–0.14) 0.03

In each cell, data presented are median, followed by 25th and 75th percentiles.

HR, heart rate; Peak VO2, maximal exercise capacity; VE/VCO2 slope, ventilatory efficiency; RER, peak respiratory exchange ratio