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. 2012 Jun 18;7:4. doi: 10.1186/1749-7221-7-4

Table 3.

Results (median and range) for different stimulus durations

Variable
0.05 ms
0.1
0.3 ms
  (n = 10) (n = 11) (n = 10)
Max CMAP (mV)
10.9
(4.7–12.9)
9.5
(6.9–13.5)
10.9
(4.7–12.9)
S5 (mA)
13.4*
(9.4–29.5)
8.5*
(6.4–16.0)
4.4*
(2.8–10.0)
S50 (mA)
16.1*
(11.5–34.7)
10.6*
(8.2–20.9)
5.2*
(3.5–12.4)
S95 (mA)
18.8*
(14.2–39.6)
13.3*
(9.61–24.5)
6.3*
(4.6–14.9)
Range (mA)
5.6*
(3.8–10.1)
5.0*
(2.7–8.9)
2.0*
(1.6–4.8)
Relative Range
0.46*
(0.27–0.61)
0.44*
(0.35–0.88)
0.51*
(0.34–0.70)
Step Number
2
(0.8)
2
(0–7)
1.5
(0–5)
Step percentage (% )
1.9
(0–5.5)
4.9
(0–15.9)
2.9
(0–10)
VAS 1.2
(0.0–3.2)
1.0
(0.0–1.8)
1.0
(2.7–2.4)

The excitability parameters all differed significantly (p < 0.01) between all stimulus durations settings (indicated with *). For example, S5 with 0.05 ms differs significantly from 0.1 ms and from 0.3 ms.

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