in a person with poor recovery, a greater excitability is observed in the motor cortex ipsilateral to the paretic TA (LI of motor threshold = —0.28), corresponding to a relatively greater activation from the unaffected hemisphere (Schneider and Malouin, unpublished data). An LI can be calculated for each parameter (motor threshold, slope and MEP plateau) and for the ensemble (Fig. 1.2).

These examples show the potential of combining clinical, laboratory and brain imaging measures to better understand the recovery of locomotor function after stroke.

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