Table 2. Mean %RVC of neuromuscular activation of the different whole-body vibration frequencies and pelvic positions.
| Variable | Frequency | Neutral | Anterior tilt | Posterior tilt |
|---|---|---|---|---|
| UT* | 0 Hz | 100 | 122.6±43.6 | 127.9±44.4 |
| 10 Hz | 194.4±142.0 | 201.2±149.2 | 159.4±79.7 | |
| 20 Hz | 300.6±299.8 | 290.1±230.3 | 182.1±70.7 | |
| ES* | 0 Hz | 100 | 213.5±101.5 | 107.9±38.1 |
| 10 Hz | 152.3±63.3 | 316.3±225.0 | 179.0±136.8 | |
| 20 Hz | 276.3±199.3 | 476.9±288.3 | 309.1±280.8 | |
| RA* | 0 Hz | 100 | 113.8±16.8 | 130.9±22.9 |
| 10 Hz | 237.3±142.8 | 242.1±136.3 | 316.5±288.1 | |
| 20 Hz | 417.1±327.9 | 354.5±171.7 | 724.9±1205.6 | |
| EO* | 0 Hz | 100 | 156.3±133.3 | 197.6±86.5 |
| 10 Hz | 262.1±218.8 | 288.3±223.4 | 297.6±213.4 | |
| 20 Hz | 337.1±208.7 | 344.9±245.5 | 449.5±358.2 | |
| GM* | 0 Hz | 100 | 104.4±43.1 | 415.2±381.3 |
| 10 Hz | 381.1±280.4 | 361.0±323.5 | 637.7±301.5 | |
| 20 Hz | 846.9±800.6 | 557.9±318.6 | 1034.6±603.6 | |
| RF* | 0 Hz | 100 | 235.6±269.3 | 441.9±418.8 |
| 10 Hz | 1381.0±1299.3 | 1420.5±1424.5 | 1145.6±1323.2 | |
| 20 Hz | 2345.8±2360.4 | 1870.1±2011.9 | 1993.5±2127.9 | |
| ST* | 0 Hz | 100 | 285.4±402.0 | 377.0±310.5 |
| 10 Hz | 1159.1±1265.2 | 775.4±485.4 | 994.2±893.5 | |
| 20 Hz | 1138.6±808.7 | 1316.2±1073.0 | 1362.±809.7 | |
| MG* | 0 Hz | 100 | 140.9±91.5 | 117.9±55.2 |
| 10 Hz | 453.1±469.7 | 487.2±573.5 | 323.2±173.7 | |
| 20 Hz | 1076.7±1232.7 | 953.8±837.9 | 842.2±572.8 |
Mean±SD of %RVC. *p < 0.05. UT: upper trapezius, ES: erector spinae, RA: rectus abdominis, EO: external oblique, GM: gluteus maximus, RF: rectus femoris, ST: semitendinosus, MG: medial gastrocnemius