Differences in primary locomotor outcomes of A) fastest speed, B) peak treadmill speed, and secondary outcomes of C) 6MWT and D) peak RST power; BSL and POST indicated for both first and second training interventions in order received; dark lines indicate task-specific training, dashed lines indicate impairment-based training, filled squares denote task-specific first, impairment-based second; open triangles denote impairment-based first, task-specific second.