Table 1.
Normal values of single bolus analysis (SBA) of oropharyngeal swallowing obtained from three age groups[57]
| Parameter of SBA | 3 mL water swallowing |
Dry (saliva) swallowing |
||||
|---|---|---|---|---|---|---|
| 17-39 ages | 40-59 ages | 60-81 ages | 20-39 ages | 40-59 ages | 60-81 ages | |
| Triggering time (A-O) (msec) | 259 ± 14.0 | 294 ± 17 | 357 ± 17 | 297 ± 28 | 311 ± 43 | 372 ± 47 |
| 97 | 100 | 95 | 151 | 178 | 201 | |
| Total duration of SM-EMG (msec) | 846 ± 16 | 893 ± 17 | 1007 ± 24 | 825 ± 33 | 895 ± 37 | 1092 ± 77 |
| 111 | 101 | 132 | 179 | 153 | 327 | |
| Maximal amplitude of SM-EMG (rectified-integrated) (μV) | 77 ± 5.6 | 65 ± 4.0 | 57.2 ± 3.7 | 92 ± 7.0 | 82 ± 7.0 | 68 ± 4.0 |
| 37 | 23 | 20 | 39 | 27 | 19 | |
| Laryngeal relocation time (0–2) (msec) | 562 ± 13 | 583 ± 12 | 586 ± 12.5 | 504.7 ± 14 | 533 ± 26 | 571 ± 14 |
| 88 | 72 | 68 | 79 | 108 | 62 | |
Mean±SEM (SD). SM-EMG: submental electromyogram.