A: Group means and SEM of the plantarflexion central activation ratios on the reduced side, for the control, chronic WAD, and iSCI groups. A significant difference was found comparing control to chronic WAD (p < 0.01), but not comparing chronic WAD to iSCI (p = 0.07).
B: Plantarflexion torque traces for central activation testing for one uninjured control participant, one representative with chronic WAD, and one representative with iSCI.