The Korean Journal of Sports Medicine

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Table. 3.

Table. 3.

Comparison of CPET variables between adults with congenital heart disease and healthy controls (n=92)

Variable Adult CHD (n=46) Healthy control (n=46) t/χ2 p-value
Resting
HR (beats/min) 76.6±14.9 67.9±16.61 2.644 0.010
SBP (mm Hg) 113.8±17.4 113.1±12.4 0.219 0.828
DBP (mm Hg) 73.2±9.7 81.7±98.3 −0.545 0.587
Peak exercise
Peak predict VO2 (%) 67.9±16.2 105.0±18.2 −10.235 <0.001
Peak VO2 (L/min) 1.8±0.7 3.0±1.0 −6.825 <0.001
Peak VO2 (mL/kg/min) 30.8±8.2 46.7±10.1 −8.261 <0.001
Peak METs 8.9±2.4 13.4±2.9 −8.123 <0.001
Peak RPE 16.7±1.1 17.0±1.6 −1.324 0.191
Peak HR (beats/min) 175.5±29.0 194.4±12.5 −4.046 <0.001
Peak SBP (mm Hg) 152.5±23.2 176.3±25.8 −4.662 <0.001
Peak DBP (mm Hg) 68.1±14.4 70.9±8.8 −1.111 0.270
Peak RER 1.2±0.1 1.2±0.1 1.118 0.267
VE/VCO2 33.1±5.3 27.2±4.3 5.812 <0.001
Post exercise
ΔHRR 1 (min) 20.7±7.2 23.5±9.9 −1.579 0.118
ΔHRR 2 (min) 41.1±12.8 44.5±12.6 −1.245 0.216
Heart rate reserve 99.0±32.6 126.5±21.7 −4.769 <0.001
Chronotropic incompetence index 87.5±27.6 94.9±16.3 −7.348 <0.001
CI <80 15 (32.6) 3 (6.5) 9.946 0.002
Total exercise time (sec) 987.5±148.7 1,021.6±118.2 −1.212 0.229

Values are presented as mean±standard deviation or number (%) unless otherwise indicated.

CPET: cardiopulmonary exercise testing, HR; heart rate, SBP: systolic blood pressure, DBP: diastolic blood pressure, peak VO2: peak oxygen uptake, MET: metabolic equivalent of task, RPE: rating of perceived exertion, RER: respiratory exchange ratio, VE/VCO2: minute ventilation/minute carbon dioxide production, HRR: heart rate recovery, CI: chronotropic incompetence index ([peak heart rate−rest heart rate]/[220−age−rest heart rate]).

Korean J Sports Med 2020;38:225-33 https://doi.org/10.5763/kjsm.2020.38.4.225
© 2020 Korean J Sports Med