Hemiparesis, strictly defined as (muscular) weakness affecting one side of the body, is seen in three-quarters of individuals following stroke. Weakness in this population results from both neural and muscular factors which include, respectively, the ability to activate skeletal muscle as well as the force generating capacity of the muscle. The overall goal is to improve walking in persons post-stroke by training subjects with an intervention that specifically targets existing neural and muscular impairments, thereby facilitating locomotor recovery.