The application of functional electrical stimulation (FES) is usually used in physical therapy to assist the paretic limb to perform functional tasks (5-7). The previous studies reported the functional tasks of hemiplegic hands are improved after electrical stimulation treatment (Wu, 2006; Santos, 2006). FES has also been used to improve the walking ability of subjects with stroke (Bogataj, 1989; Yan, 2005; Salm, 2006). Clinical studies on central motor neuroplasticity also support the role of goal-oriented, repetitive, active movement in the therapy of paretic limbs to enhance motor recovery and relearning in stroke patients. (Ferrante, 2008) In the first half of the 1980s, FES was applied during cycling exercise on the paretic legs of people with spinal cord injury (SCI). The beneficial effects of cycling exercise via FES have evidenced increases in muscle strength and endurance, increases in bone density, suppression of spasticity, improvement of cardiopulmonary function, and many other physiological and psychological effects of benefit for SCI patients (Donaldson et al., 2000; Gfohler and Lugner, 2000; Gfohler et al., 2001). Recently, similar FES assisted cycling devices have also been used for stroke patients (Janssen, 2008; Ferrante, 2008). They reported that FES assisted training provided increased aerobic capacity and functional performance for them. However, in one study (Janssen, 2008) the functional performance was evaluated by clinical scales which do not reflect the changes on the affected limb influenced by the training exercise. It is worthwhile to realize the effects on the affected leg and the changes on postural control after the FES-cycling training.