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Table 2 Oxygen uptake and ventilation during HF-NMES, LF-NMES or strength training

From: Metabolic load during strength training or NMES in individuals with COPD: results from the DICEStrial

 

HF-NMES

LF-NMES

Strength training

n = 9

n = 8

n = 7

VO2

ml/min

424 (312–438)

369 (323–512)

630 (593–759)

VE

L/min

19 (15–22)

20 (15–24)

26 (23–33)

VO2

ml/min

387 (345–418)

454 (335–530)

659 (576–754)

VE

L/min

17 (16–20)

21 (16–25)

30 (25–33)

VO2

ml/min

438 (366–619)

447 (329–518)

725 (603–861)

VE

L/min

21 (17–25)

20 (15–24)

30 (27–33)

  1. Values expressed as median (interquartile range).
  2. Abbreviations: HF-NMES = high-frequency transcutaneous neuromuscular electrical stimulation; LF-NMES = low-frequency transcutaneous neuromuscular electrical stimulation; VO2 = oxygen uptake; VE = ventilation; ml/min = milliliters per minute; L/min = liters per minute.