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Table 5 Physiological parameters before and after hyperbaric oxygen therapy

From: Hyperbaric oxygen treatment for long coronavirus disease-19: a case report

Cardiopulmonary exercise test Pre-HBOT Post-HBOT Change in %
VO2 max (mL/min) 3083 4130 34
VO2max/kg (mL/min/kg) 31.5 42.4 34.6
Lactic threshold (mL/min) 2941 3439 16.9
Respiratory threshold (mL/min) 3103 4076 31.4
Metabolic equivalent of task (MET) 9 12.1 34.4
Maximal heart rate (bpm) 155 164 5.8
VO2/HR (mL per beat) 19.9 25.2 26.6
Pulmonary function tests
 FVC (L) 4.76 6.87 44.3
 FEV1 (L) 3.87 4.76 23
 PEF (L/s) 10.17 12.22 20.2
  1. VO2max maximum rate of oxygen consumed during exercise, ml/min milliliter per minute, VO2max/kg maximum rate of oxygen consumed during exercise per kilogram, ml/min/Kg milliliters per minute per kilogram, MET metabolic equivalent of task, bpm heartbeats per minute, VO2/HR rate of oxygen consumed per heart rate, FVC forced vital capacity, L liters, FEV1 forced expiratory volume, PEF peak flow measurement, L/s liters per second