SSS=Symptom severity scale; FSS=Functional status scale; SNCV (m/s)=Sensory nerve conduction velocity; DML (ms)=Distal motor latency; CSA (mm2)=Cross-sectional area; SE=Standard error.

^aWilcoxon Signed Ranks Test (comparison with baseline, intragroup), ^bMann-Whitney U Test (mean, intergroup).

The 2-way ANOVA was used to test the group by time interaction, the p-value was 0.661, 0.749, 0.709, 0.049 and 0.537 for SSS, FSS, SNCV, DML and CSA, respectively.