Skip to main content
. 2022 Jun 21;4(2):210–219. doi: 10.1016/j.jaccao.2022.05.003

Table 2.

Cardiopulmonary Exercise Test Characteristics (N = 380)a

Rest 74 (68-83)
 Heart rate, beats/min 74 (68-83)
Ventilatory threshold
 Treadmill speed, mph 3.00 (2.60-3.30)
 Treadmill speed, m/min 80 (70-89)
 Treadmill grade, % 9.0 (6.0-12.0)
 Treadmill grade, decimal 0.09 (0.06-0.12)
 Treadmill speed x grade 6.76 (5.19-8.37)
 Measured heart rate, beats/min 146 (136-156)
 Heart rate reserve, beats/min 70 (60-81)
 Age-predicted heart rate at 80%, beats/min 145 (139-150)
 Difference between measured and age-predicted heart rate at 80%, beats/min 2 (−7 to −10)
Peak
 Treadmill speed, mph 3.30 (3.00-3.70)
 Treadmill speed, m/min 89 (80-99)
 Treadmill grade, % 10.0 (9.0-12.0)
 Treadmill grade, decimal 0.10 (0.09-0.12)
 Treadmill speed × grade 9.3 (7.5-11.3)
 Measured heart rate, beats/min 163 (151-176)
 Heart rate reserve, beats/min 89 (76-99)
 Age-predicted peak heart, beats/min 161 (155-168)
 Difference between measured and age-predicted peak heart rate, beats/min 2 (−7 to −9)

Values are median (Q1-Q3).

Q = quartile.

a

7 patients were missing data on resting heart rate; 10 patients were missing data on ventilatory threshold treadmill speed (mph and m/min), grade, heart rate, heart rate reserve, and age-predicted heart rate at 80% beats/min.

HHS Vulnerability Disclosure