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. 2022 Jan 14;17(1):14–20. doi: 10.4103/atm.atm_158_21

Table 2.

Pulmonary function and respiratory muscle strength in pre- and post- measurements

TEDS Control


Pre Post P Pre Post P
CL (ml/cmH2 O) 43 (34-53) 36 (30-54) 0.427 45.5 (30.8-57) 44.9 (30-55.3) 0.380
Raw (cmH2 O/ml/s) 14 (11.6-16) 12 (11-15) 0.101 13 (12-15.3) 12.5 (10.4-14) 0.381
RR (bpm) 18 (15-20) 17 (13-24) 0.493 19 (15.8-24) 17.5 (15.8-22) 0.434
Vt (ml) 421 (343-485) 424 (358-487) 0.967 429 (336.5-479.5) 376 (333.5-445) 0.313
MV (L) 6.9 (5.9-8.3) 7.3 (6.3-9) 0.342 8.0 (6.5-9.3) 6.8 (5.8-8.3) 0.181
SpO2 (%) 98 (97-100) 98 (97-100) 0.384 98 (96-100) 99 (99-100) 0.213
RSBI 115 (59-150) 105 (67-100) 0.081 99.5 (60.8-123.8) 101.5 (69.3-137.8) 0.516
Pimax (cmH2 O) 20 (15-30) 20 (16-40) 0.148 29 (20-36.5) 26.5 (19.5-30.5) 0.307
Pemax (cmH2 O) 10 (8-20) 20 (10-22) 0.034 18 (10-40) 17 (20-25.5) 0.777

Data are expressed as median (25th–75th percentiles). Vt=Tidal volume, RR=Respiratory rate, MV=Minute volume, RSBI=Rapid shallow breathing index, CL=Lung compliance, Raw=Airway resistance, Pemax=Maximal expiratory pressure, Pimax=Maximum inspiratory mouth pressure, TEDS=Transcutaneous electrical diaphragmatic stimulation