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Table 4 Cardiorespiratory Fitness and Physical Activity Characteristics Expressed as Mean (95% Confidence Intervals)

From: Is Cardiorespiratory Fitness Related to Cardiometabolic Health and All-Cause Mortality Risk in Patients with Coronary Heart Disease? A CARE CR Study

Variable High CRF, n = 28 Mod CRF, n = 32 Low CRF, n = 10 Partial eta squared
VO2peak (ml/kg/min) 28.5 (27.3, 29.7)+ 20.7 (19.5, 21.8)+ 14.9 (12.8, 16.9)+
VO2peak (L/min) 2478.2 (2333.0, 2623.5)+ 1749.0 (1613.1, 1884.9)+ 1273.8 (1030.7, 1516.8)+
VO2peak-lean (ml/kg/min) 45.2 (43.4, 47.0)+ 34.8 (33.2, 36.5)+ 26.8 (23.8, 29.8)+ 0.670
VAT (ml/kg/min) 20.7 (19.3, 22.1)+ 14.6 (13.3, 15.9)+ 11.2 (8.9, 13.6)+ 0.494
VE/VCO2 slope 30.1 (28.2, 32.1)* 37.4 (35.6, 39.2) 38.5 (35.2, 41.7)* 0.354
VO2/HR (ml/beat) 17.0 (15.8, 18.2)+ 13.8 (12.7, 14.9)+ 11.3 (9.4, 13.3)+ 0.311
OUES 2718.3 (2555.3, 2881.3)* 1963.5 (1811.1, 2116.0) 1699.0 (1426.2, 1971.7)* 0.485
eBR (%) 30.3 (23.6, 36.9) 28.1 (22.0, 34.3) 37.0 (26.0, 48.1) 0.028
Peak HR (bpm) 147 (141, 153)* 128 (122, 134) 119 (108, 129)* 0.308
Peak RER 1.13 (1.09, 1.12)* 1.09 (1.05, 1.12)x 0.97 (0.91, 1.04)*x 0.181
Peak RPE 18 (17, 19) 18 (17, 19) 17 (15, 18) 0.072
1 min HR recovery (bpm) − 36 (− 32, − 40)* − 30 (− 26, − 34)x − 18 (− 11, −25)*x 0.209
2 min HR recovery (bpm) − 54 (− 50, − 59)+ − 45 (− 40, − 49)+ − 32 (− 25, −38)+ 0.312
3 min HR recovery (bpm) − 60 (− 56, − 65)+ − 49 (− 45, − 53)+ − 37 (− 30, −44)+ 0.359
6 min HR recovery (bpm) − 67 (− 62, − 71)+ − 54 (− 50, − 58)+ − 41 (− 33, − 48)+ 0.377
Exercise test duration (s) 963.2 (916.3, 1010.1)+ 747.8 (703.9, 791.6)+ 488.3 (409.8, 566.8)+ 0.635
METs 8.1 (7.8, 8.5)+ 5.9 (5.6, 6.2)+ 4.3 (3.7, 4.8)+
Maximal CPET (%) 26 (93) 26 (81) 6 (60)  0.058
Achieves 150 min of moderate activity per week (%) 18 (64)+ 9 (28) 5 (50)  0.011**
Achieves 75 min of vigorous activity per week (%) 7 (25)+ 1 (3) 0 (0)  0.013**
  1. VO2peak peak oxygen uptake, VAT ventilatory anaerobic threshold, VE/VCO2 ventilatory efficiency with respect to CO2 elimination, VO2/HR oxygen pulse, OUES oxygen uptake efficiency slope, eBR estimated breathing reserve, HR heart rate, bpm beats per minute, RER respiratory exchange ratio, RPE rating of perceived exertion; S seconds, METs metabolic equivalents
  2. **Significant group effect
  3. *Significant difference between high CRF and low CRF
  4. Significant difference between high CRF and moderate CRF
  5. xSignificant difference between mod CRF and low CRF
  6. +Significantly different from all other groups