Functional Electrical Stimulation (FES) for Foot Drop
Functional Electrical Stimulation (FES) is a clinically proven, non-invasive treatment designed to improve walking in individuals experiencing foot drop due to upper motor neuron injuries. It is widely used in neurological rehabilitation for conditions such as:
- Stroke
- Multiple Sclerosis (MS)
- Cerebral Palsy
- Spinal Cord Injury (particularly incomplete injuries)
- Traumatic Brain Injury (TBI)
FES forms an important part of evidence-based neurological rehabilitation and is commonly prescribed within multidisciplinary care models.
What is Foot Drop?
Foot drop is a condition characterised by difficulty lifting the front part of the foot (dorsiflexion) during walking. This may result in:
- Dragging of the toes
- Increased risk of trips and falls
- Compensatory high-stepping gait patterns
- Reduced walking speed and endurance
Foot drop most commonly occurs due to disruption of brain-to-muscle nerve pathways (upper motor neuron lesions), rather than direct muscle injury.
How Functional Electrical Stimulation Works
FES uses mild, precisely timed electrical impulses delivered via small surface electrodes placed on the lower leg. These impulses stimulate the peroneal nerve, activating the muscles responsible for lifting the foot at the correct moment during the gait cycle.
A sensor (either shoe-based or integrated into the device) detects movement changes such as heel lift and automatically triggers stimulation. This results in:
- Improved toe clearance during swing phase
- A more natural and dynamic walking pattern
- Reduced falls risk
- Improved walking efficiency
Unlike passive ankle-foot orthoses (AFOs), FES actively stimulates muscle contraction, supporting dynamic and functional movement.
Clinical Benefits of FES
Research and clinical experience demonstrate that FES may provide:
✔ Improved Walking Speed and Endurance
Measurable improvements in gait efficiency and walking distance.
✔ Reduced Falls Risk
Improved toe clearance reduces tripping hazards.
✔ Muscle Activation and Conditioning
Regular stimulation may assist in maintaining muscle bulk and supporting neuromuscular re-education.
✔ Enhanced Confidence and Independence
Improved mobility often translates to greater participation in work, recreation, and daily activities.
✔ Cosmetic and Comfort Advantages
FES devices are lightweight, discreet, and generally more comfortable than rigid bracing systems.
Who is Suitable for FES?
FES is most appropriate for individuals who have:
- Upper motor neuron conditions
- Preserved peripheral nerve function
- Adequate cognitive ability to manage the device
- Motivation to improve walking performance
A comprehensive neurological and biomechanical assessment is essential to determine suitability. FES may be used as a stand-alone treatment or in conjunction with orthotic management, depending on individual needs.
What to Expect During Assessment
An FES assessment typically includes:
- Detailed neurological and musculoskeletal evaluation
- Gait analysis
- Trial stimulation session
- Discussion of goals and expected outcomes
- Education regarding device use and care
If the trial is successful, the device is customised and programmed to suit the individual’s gait pattern and stimulation requirements.
We Use the ALFESS™ Functional Electrical Stimulation Device
At our clinic, we utilise the ALFESS™ Functional Electrical Stimulation device, a modern, sleek and highly adaptive FES system specifically designed to improve gait where foot drop and diminished toe clearance are present.
The ALFESS™ system actively stimulates the tibialis anterior muscle by assisting the associated nerve pathways to produce dorsiflexion (lifting of the foot). The device is comfortably applied to the upper portion of the lower leg.
Intelligent, Adaptive Technology
During walking, integrated sensors continuously detect:
- Walking speed
- Leg angles
- Movement dynamics
A sophisticated internal algorithm processes this information in real time and delivers precisely timed electrical impulses to lift the forefoot during swing phase. This promotes a more natural, efficient gait pattern.
Users can easily increase or decrease stimulation intensity at any time, ensuring comfort and adaptability throughout the day.
Key Features of the ALFESS™ System
✔ Sleek, anatomically conforming design
✔ Suitable for unilateral or bilateral use
✔ Magnetic clasp for easy application
✔ Unique controls allowing one-handed operation
✔ Integrated training mode to enhance rehabilitation outcomes
✔ Easy charging and handling
✔ Control via on-device settings, remote control, or Smartphone App
Training Mode & Rehabilitation Support
The ALFESS™ device includes a dedicated training mode designed to maximise neuroplasticity and functional recovery.
Training may be conducted:
- In-clinic with a qualified clinician
- Independently by the patient following structured instruction
This flexibility supports both supervised rehabilitation and ongoing home-based therapy.
Recommended Range of Application
The ALFESS™ device is indicated for individuals with central nervous system diagnoses including:
- Multiple Sclerosis
- Stroke
- Cerebral Palsy
- Spinal Cord Injury
- Traumatic Brain Injury
Professional Programming & Clinical Oversight
The ALFESS™ device is a Class II medical device and must be custom programmed to each patient’s specific gait pattern and stimulation requirements.
Appropriate fitting and programming should be performed by qualified allied health professionals trained in FES prescription and management.
All units contain serial numbers for tracking, safety, and warranty purposes.
A Modern, Active Solution for Foot Drop
Unlike passive bracing systems, ALFESS™ provides active muscle stimulation that encourages functional movement and supports rehabilitation outcomes. For suitable candidates, this technology offers a sophisticated, evidence-based pathway toward improved walking efficiency, safety, and confidence.
For further information or to arrange a comprehensive FES assessment, please contact our clinic.
