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. 2019 Oct 11;14(10):e0223838. doi: 10.1371/journal.pone.0223838

Table 3. Effect of pericardiectomy on functional capacity.

Variables Pre (n = 23) Post (n = 23) p
Test duration (min) 11±3.1 11.9±1.9 0.166
Exercise time (min) 8.9±3.1 9.8±1.9 0.166
Treadmill speed (mph) 2.5 (2–2.5) 3 (2.5–3.3) 0.001
HR peak (bpm) 136.4±29.9 157.3±26.5 0.002
LA-VO2 (mL/kg/min) 13.1±3 17.7±5.5 <0.001
LA (%)* 70.7±11.3 70.5±9.3 0.953
VO2 peak (mL/kg/min) 18.7±5.6 25.2±6.3 <0.001
VO2 peak (%)* 61.7±18.9 83.6±24.7 <0.001
VE (L/min) 50.4±13.8 61.1±19.7 <0.001
VE/VCO2slope 32.7±5.9 27.1±6,5 0.001
RER 1.1 (1.0–1.2) 1.1 (1.0–1.2) 0.224

* Percentage in relation to predicted for age and sex. Data with normal distribution are presented as the mean ± standard deviation. Data with abnormal distribution are presented as the median and interquartile range. LA-VO2: oxygen consumption at the lactate (anaerobic) threshold; LA: lactate (anaerobic) threshold; HR: heart rate; VO2: oxygen consumption; VE: pulmonary ventilation; RER: respiratory exchange ratio.