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Table 2 Cardiopulmonary performance to exercise

From: Ventilation dynamics using a portable device coupled to the six-minute walk test in people with long-COVID syndrome: a preliminary study

Variables

Values

Spiropalm®-equipped 6MWT

 

 6MWD (m)

434 (386–478)

 6MWD (% predicted)

83 (78–97)

 Basal SO2 (%)

96 (93–98)

 End of test SO2 (%)

94 (92–96)

 Basal HR (pulse/min)

87 (79–92)

 End of test HR (pulse/min)

116 (108–119)

 Resting VE (L/min)

14 (12–16)

 VEpeak (L/min)

30 (26–36)

 BR (%)

62 (52–69)

 Basal IC (L)

2.3 (2–2.7)

 End of test IC (L)

2.1 (1.7–2.5)

 ∆IC (L)

-0.2 (-0.5–-0.1)

FitMate™ testing

 

 VO2peak (ml/kg/min)

19 (14–37)

 VEpeak (L/min)

47 (38–69)

 End of test RR (breaths/min)

37 (34–46)

 End of test HR (pulse/min)

138 (123–161)

  1. 6MWT six-minute walk test, 6MWD six‐minute walking distance, SO2 oxygen saturation, HR heart rate, VE minute ventilation, BR breathing reserve, IC inspiratory capacity, VO2peak peak oxygen uptake, RR respiratory rate
  2. Results are expressed as median (interquartile ranges)