Table 3.
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