Journal of The Korean Society of Physical Medicine

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Table. 4.

Table. 4.

Changes in Pulmonary Function Pre- and Post-intervention

Variable TENS Group (n = 7) Placebo TENS Group (n = 7) Control Group (n = 6) χ2 Post-hoc
FEV1 (ℓ) Pre 2.40 ± .50 2.05 ± .32 2.23 ± .54
Post 2.52 ± .54 2.18 ± .26 2.30 ± .54
Mean rank 11.64 11.57 7.92 1.641
Z -1.992* -2.207* -1.590

FVC (ℓ) Pre 2.81 ± .56 2.68 ± .46 2.81 ± .62
Post 3.04 ± 5.36 2.93 ± .41 2.85 ± .71
Mean rank 13.00 12.29 5.50 6.192* 1,2>3
Z -2.201* -2.366* -.734

PEF (ℓ/min) Pre 264.14 ± 77.57 271.00 ± 71.38 286.00 ± 101.75
Post 334.29 ± 102.23 311.00 ± 74.87 328.33 ± 83.81
Mean rank 12.64 9.86 8.75 1.528
Z -2.117* -2.197* -1.095

Mean ± standard deviation, *p < .05, FEV1 (forced expiratory volume in 1 second), FVC (forced vital capacity), PEF (peak expiratory flow)

J Korean Soc Phys Med 2022;17:75-83 https://doi.org/10.13066/kspm.2022.17.1.75
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