Results of regression analysis of F wave parameters
| Parameter | Nerve | Variable | r2 | p (ANOVA) | Regression equation | Standard error of estimate |
|---|---|---|---|---|---|---|
| Fmin | Peroneal | Height | 0.201 | 0.0001 | y=11.715+0.198x | 4.082 |
| Posterior tibial | Height | 0.260 | 0.0001 | y=8.870+0.224x | 3.951 | |
| Median | Height | 0.174 | 0.011 | y=10.228+0.095x | 1.91 | |
| Ulnar | Height | 0.419 | 0.0001 | y=−2.621+0.172x | 1.896 | |
| Fmax | Peroneal | Height | 0.095 | 0.0001 | y=20.696+0.198x | 6.202 |
| Posterior tibial | Height | 0.286 | 0.0001 | y=8.168+0.265x | 4.393 | |
| Median | Height, age | None | — | — | — | |
| Ulnar | Height | 0.241 | 0.003 | y=4.362+0.157x | 2.534 | |
| Fmean | Peroneal | Height | 0.225 | 0.0001 | y=14.447+0.207x | 3.967 |
| Posterior tibial | Height | 0.399 | 0.0001 | y=6.465+0.258x | 3.38 | |
| Median | Height | 0.180 | 0.01 | y=2.854+0.153x | 3.018 | |
| Ulnar | Height | 0.472 | 0.0001 | y=−5.149+0.197x | 1.952 |
r=Adjusted squared multiple r. ANOVA=analysis of variance. The 95th percentile was used as the upper limit of normality for Fmax in the median nerve (35,22 ms).