Groups SDTc(miliseconds) Rhb(miliampere) DM+PNP 473.82 ± 81 2.60 ± 0.36 DM-PNP 443.26 ± 56 2.78 ± 0.40 Control 434.51 ± 64 2.86 ± 0.32 Groups SDTc(miliseconds) Rhb(miliampere)

Table 2 : Mean strength duration time constant and rheobase values of the groups