Current examinations of post-stroke motor control rely on interpretation of isolated movements performed during standardardized clinical examinations. Due to the complexity of human walking, however, evaluation of walking specific motor control likely needs to be conducted as the patient is ambulating. Task specific evaluations may enhance the ability of the clinician to distinguish recovery of functional behavior by means of compensation for motor control deficits from true restitution of walking specific motor control. The purpose of this dissertation is to examine assessments by which individuals post stroke may be examined during walking in order to distinguish restitution of physical function from compensatory responses. Current clinical examinations do not differentiate motor activity during the task or in walking and correlate poorly with functional and biomechanical walking performance measures. Factor analysis of electromyographic motor patterns, however, yields specific modules of activity that correlate significantly with each of the examined walking performance measures. Voluntary, discrete activities may be inadequate to capture the complex motor behavior in walking, and walking specific measures are required to describe the efficacy of rehabilitation on behavioral recovery. One such measure is derived from the anterior-posterior ground reaction forces generated during walking. These forces are responsible for the propulsion of the center of mass anteriorly and we propose a measure (paretic propulsion) that allows for examination of the paretic leg contribution to overall propulsion. This measure is positively correlated both with speed and with severity of hemiparesis. Perhaps most importantly, paretic propulsion allows the investigator to distinguish functional compensation from physiological restitution by providing a measure of coordinated output of the paretic leg. Additionally, we assessed measures of spinal level reflex activity to examine the degree to which those with post stroke hemiparesis modulate sensory input. While healthy controls modulate in a systematic and reproducible fashion, those with stroke demonstrate substantially more variable responses. We determined that paretic leg responses differ depending on side stimulated, indicating that stroke leads to altered function at the level of the spinal cord during gait. Further exploration is required to fully understand the motor control and clinical implications.