The training consists of 6 weeks of functional electrical stimulation leg cycling exercise (FES-LCE) program. The training program comprises of 2 visits per week. Each visit consists of FES-LCE for 45 minutes. Throughout the 6 weeks program, there will be testing/assessment sessions on week 1, week 3 and week 6. The FES will be applied via surface electrodes and the stimulation intensity based on the participant's tolerance level.

Inclusion Criteria:

• Participants were diagnosed with incomplete spinal cord injury (SCI) at least one year prior to participation.
• Age between 18-75 years old.
• Both male and female.
• Have at least 90º bilateral knee flexion.
• Moderate neurological induce weakness in quadriceps muscle of 1 leg that is responsive to electrical stimulation (moderate weakness was defined as 3/5 or 4/5 on manual muscle testing).
• Able to perform cycling activity.
• Normal upper limb function.
• Able to follow command.

Exclusion Criteria:

• Had a recent history of trauma to the lower limb.
• Severely infected skin pressure sore on weight-bearing skin areas.
• Illness caused by acute urinary tract infection.
• Uncontrolled spasticity or pain.
• History of cardiovascular/cardiorespiratory problem.
• Orthostatic hypotension.
• Unhealed decubiti at electrode placement area.
• Recurrent autonomic dysreflexia.
• Active heterotopic ossification.
• Other peripheral or central neurologic injury.