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Quick reference simplified set of normative data for electric activity obtained by surface EMG for the masseter, submental group (SUB) and laryngeal strap muscles (INF) during various tests, in μV. [age range: normal range of voltage values] |
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| Saliva swallow |
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| Masseter range |
18–30: 4.5 – 15.9 |
31–70: 5.54 – 12.1 |
70+: 2.94–22.42 |
| SUB range |
18–30: 13.4–59.72 |
31–70: 9.52 – 49.5 |
70+: 10.2–42.32 |
| INF range |
18–40: 2.0–4.5 |
41–70: 2.5–4.3 |
70+: 4.3–7.25 |
| Normal swallow |
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| Masseter range |
18–60: 2.2–31.0 |
61–70: 1.97 – 27.69 |
70+: 3.77–20.0 |
| SUB range |
18–30: 11.4–63.41 |
31–50: 12.58–51.6 |
51–70+: 7.4 – 44.8 |
| INF range |
18–40: 2.85–6.3 |
41–70: 3.8–5.6 |
70+: 4.33–8.0 |
| Excessive swallow |
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| Masseter range |
18–40:1.5–37.0 |
41–70: 1.2 – 29.4 |
70+: 4.65–21.13 |
| SUB range |
18–30: 19.28–50.80 |
31–70+: 12.1 – 47.44 |
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| INF range |
18–40: 3.8–6.55 |
41–70: 3.9–6.23 |
70+: 4.5–9.3 |
| 100 cc drinking |
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| Masseter mean (real)* |
18–70: 0.8 – 6.2 |
70+: 1.0 – 7.84 |
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| SUB mean (real) |
18–60: 3.5 – 11.5 |
61 – 70+: 4.25 – 16.25 |
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| INF mean (real) |
18–70: 1.4–2.8 |
70+: 1.0–3.85 |
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*Raw mean = computer-calculated mean, while Real mean = raw mean minus the mean resting potential of an actual muscle covered by skin (2.808 μV = for the m. submental and m. infrahyoid, 2.495 μV = for the m. masseter, and 4.542 = for the m. orbicularis oris). | |||
Vaiman Head & Face Medicine 2007 3:26 doi:10.1186/1746-160X-3-26 |
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