25 January 2024 : Clinical Research
Enhanced Pain Relief and Muscle Growth in Individuals with Low Back Instability: The Impact of Blood Flow Restriction Exercise during Sit to Stand Movements
Keun-Hyo Lee
1BCE, Seung-Chul Chon 1ADF*
DOI: 10.12659/MSM.942508
Med Sci Monit 2024; 30:e942508
Table 5 Changes of QMM according to the BFRE.
| Variable | Experimental (n1=20) | Control (n2=20) | t | P value | |
|---|---|---|---|---|---|
| RF | Pre (mm) | 19.55±2.83 | 20.15±3.16 | −.631 | .532 |
| Post (mm) | 21.50±3.00 | 21.35±3.40 | .148 | .883 | |
| Change (%) | 10.20±2.78 | 5.95±3.57 | 4.194 | .000 | |
| t | −17.085 | −7.712 | |||
| P value | .000 | .000 | |||
| VI | Pre (mm) | 19.65±2.45 | 20.65±2.62 | −1.245 | .221 |
| Post (mm) | 20.90±2.10 | 21.20±2.58 | −.403 | .690 | |
| Change (%) | 6.15±4.29 | 2.60±2.92 | 3.054 | .004 | |
| t | −6.571 | −4.067 | |||
| P value | .000 | .001 | |||
| VM | Pre (mm) | 19.80±2.58 | 20.40±3.06 | −.669 | .508 |
| Post (mm) | 21.10±2.59 | 20.95±2.79 | .176 | .861 | |
| Change (%) | 6.25±2.91 | 2.75±3.35 | 3.521 | .001 | |
| t | −10.177 | −3.584 | |||
| P value | .000 | .002 | |||
| VL | Pre (mm) | 21.35±2.25 | 22.20±2.48 | −1.133 | .264 |
| Post (mm) | 22.80±1.98 | 22.75±1.97 | .080 | .937 | |
| Change (%) | 6.50±4.90 | 2.55±4.77 | 2.581 | .014 | |
| t | −5.900 | −2.342 | |||
| P value | .000 | .030 | |||
| QMM – quadriceps muscle mass; BFRE – blood flow restriction exercise; RF – rectus femoris; VI – vastus intermedius; VM – vastus medialis; VI – vastus lateralis. | |||||