Table. 2.
Table. 2.
Effects on respiratory function
| Study | Participants | Intervention(device) | Frequency and Duration | Outcome measure | Result |
|---|---|---|---|---|---|
| Cho YH, 2022[20] | EG1:7 EG2:7 CG:6 |
EG1 : CT + CRT(TENS) EG2 : CT + CRT(placebo TENS) CG : CT |
30min/once 5times/1week, for 4weeks | FEV1 FVC PEF |
EG1 and EG2 showed significant improvements in FEV1, FVC, and PEF values compared to CG before and after the intervention. Regarding FVC values, EG1 and EG2 demonstrated a significant difference compared to CG. |
| Lee MH, 2022[21] | EG:8 CG:8 |
EG : CT + RMT(threshold IMT/EMT) CG : CT + RMT(threshold IMT/EMT) |
CT: 30min/once 3times/week, for 6weeks RMT: 20min/once 3times/week, for 6weeks |
FVC FEV1 PEF FEV1/FVC |
In EG, there were significant improvements in FVC, FEV1, PEF, and FEV1/FVC values before and after the intervention. In the intergroup comparisons, the change in PEF values showed a significant difference among the groups. |
| Kim KH, 2020[22] | EG:12 CG:13 |
EG : CT + PNF + RMT (RESPIFITS) CG : CT + WBV |
CT: 30min/once 3times/week, for 8weeks PNF: 10min/once RMT: 10min/once WBV: 20min/once |
FVC FEV1 PEF |
Both EG and CG showed significant improvements in FVC, FEV1, and PEF values before and after the intervention. In theintergroup comparisons, EG demonstrated significant differences in FVC, FEV1, and PEF values compared to CG. |
| Kim BS, 2019[23] | EG:8 CG:9 |
EG : WBV + RMT (Expand A Lung) CG : WBV |
30min/once 3times/week, for 4weeks | FVC FEV1 MVV MIP MEP |
In EG, there were significant improvements in FVC, FEV1, MVV, MIP, and MEP values before and after the intervention. In the intergroup comparisons, significant differences were observed in FVC, MVV, MIP, and MEP values between EG and the comparison group. |
| Yoo HJ, 2018[24] | EG:20 CG:20 |
EG : CT + RMT(flow-oriented incentive spirometer, Acapella vibratory PEP) CG : CT |
30min/twice 5times/week, for 3weeks | FVC FEV1 FEV1/FVC Peak flow(ml) |
In EG, significant differences were observed in FVC, FEV1, and peak flow values before and after the intervention. In the intergroup comparisons, EG showed significant differences compared to CG in FEV1 and peak flow values. |
| Kang TW, 2018[25] | EG:10 CG:11 |
EG : CT + CRT CG : CT |
30min/once 5times/week, for 6weeks | MEP MIP |
EG and CG significantly improved in MIP and MEP values before and after the intervention. In the intergroup comparisons, EG demonstrated significant differences compared to CG in MIP and MEP values. |
| Jeong SA, 2017[26] | EG1:10 EG2:10 CG:10 |
EG1 : CT + CRT EG2 : CT + IMT (POWERbreathe) CG : CT |
CT : 30min/once 5times/week, for 6weeks CRT, IMT:30min/once 30times/week, for six weeks | FVC | The pre- and post-intervention values of FVC significantly increased in both EG1 and EG2. In the intergroup comparison of changes, significant differences were observed in FVC between EG1 and EG2, as well as between EG2 and CG. |
| Cho YH, 2015[27] | BG:10 DG:10 |
BG : CRT DG : RMT(Reinforcement Device: HS-IM-1900) |
20min/once 3times/week, for 8weeks | FVC FEV1 PEF |
In BG, there were significant increases in FEV1 and PEF values before and after the intervention. In DG, significant improvements were observed in FVC, FEV1, and PEF values. In the intergroup comparison of changes, there were significant differences in FVC, FEV1, and PEF values among the groups. |
| Cho MR, 2014[28] | EG:17 CG:17 |
EG : CT + CRT CG : CT |
CT:20~30min/once 5times/week, for 4weeks CRT:3times/week, for 4weeks | FVC PEF MIP MEP |
In EG, there were significant increases in FVC, PEF, MIP, and MEP values before and after the intervention. In the intergroup comparison of changes, significant differences were observed in FVC, PEF, MIP, and MEP values among the groups. |
| Kim JS, 2013[29] | EG:9 CG:9 |
EG : CT + RMT(threshold IMT/EMT) CG : CT |
CT:5times/week, for 4weeks RMT: 3times/week, for 4weeks |
FVC FEV1 MVV |
In EG, there were significant increases in the FVC, FEV1, and MVV values before and after the intervention. In addition, in CG, there were significant increases in FVC and MVV values before and after the intervention. In the intergroup comparisons, EG showed significant differences compared to CG in FVC, FEV1, and MVV values. |
| Lee et al., 2012[30] | EG:14 CG:10 |
EG : RMT(spiro-tiger) CG : upright training |
RMT : 20min/once 3times/week, for 4weeks | FVC FEV1 FEV1/FVC VC VT IRV ERV |
In the intergroup comparisons, EG showed significant differences from CG in VC and VT values. |
EG: experimental group, CG: control group, CT: Conventional therapy, CRT: Complex respiratory training, FVC: forced vital capacity, FEV1: 1 second forced expiratory volume, PEF: peak expiratory flow, MIP: maximal inspiratory pressure, MEP: maximal expiratory pressure, MVV: maximum voluntary ventilation, RMT: respiratory muscle training, PNF: Proprioceptive neuromuscular facilitation, WBV: whole-body vibration, BG: breathing exercise group, DG: device exercise group, VC: vital capacity, VT: tidal volume, IRV: inspiratory reserve volume, ERV: expiratory reserve volume Table
J Korean Soc Phys Med 2023;18:85-97 https://doi.org/10.13066/kspm.2023.18.3.85 
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