Pilot Study for Peripheral Neuromuscular Electrical Stimulation of the Quadriceps Muscle

Pilot Study for Peripheral Neuromuscular Electrical Stimulation of the Quadriceps Muscle: Healthy or Deprived of Central Nervous System Control

Feasibility study of a new medical device that will evaluate the usability and effectiveness of a cycle ergometer device associated with neuromuscular electrical stimulation (FES cycling). The study's objective is to evaluate the effect of the application of functional electrical stimulation of the new device on participants' quadriceps muscle strength in comparison to a medical device with similar characteristics and to a control group. Secondarily, the study will compare the usability of the two medical devices as evaluated by the participants and the therapists who apply the treatment, as well as the participants' satisfaction with the treatment, identifying possible adverse effects.

Inclusion Criteria:

• Spinal cord injury, brain injury or acquired muscle weakness
• Managed chronic diseases
• No contraindications to the practice of physical exercise
• Ability to communicate in oral and written Portuguese

Exclusion Criteria:

• Amputation of lower limbs at any level
• Unstable or acute fractures of lower limbs
• Contraindication for the practice of physical activity
• Open wounds in the lower limbs
• Consent withdraw