What is a Walking Robot (Robotic Rehabilitation)? Benefits & Process

A walking robot is an advanced physical therapy method designed to help patients who have partially or completely lost their ability to walk due to paralysis, spinal cord injuries, or various neurological conditions regain this vital function. Thanks to robotic devices attached to the patient's legs, a normal walking pattern is flawlessly simulated, sending the correct walking signals back to the brain. Also known as robotic rehabilitation, this method ensures the patient actively participates in their treatment process in a safe, motivating, and fatigue-free environment.

• In brief:
• Used to regain and improve walking ability.
• Works on the principle of neuroplasticity—the brain's capacity to renew itself.
• Highly effective for stroke, cerebral palsy, Parkinson's disease, and spinal cord injuries.
• Sessions typically last between 20 and 45 minutes, depending on the patient's condition.
• A single device can be used for both adult and pediatric robotic rehabilitation.

What is a Walking Robot (Robotic Rehabilitation)?

A walking robot is a computer-assisted treatment system that enables patients who have lost mobility to relearn their physiological walking pattern (natural gait). When the communication between the brain and muscles is severed after an illness or trauma, patients may forget how to walk or develop incorrect walking habits. Walking robot therapy ensures that the legs transition into a normal walking rhythm in coordination with the hands and arms, allowing for controlled weight transfer between the legs.

This system uses a harness to lift the patient, reducing the burden of their body weight on the legs. Then, robotic legs are secured to the patient's own legs, and a natural walking motion is initiated on a treadmill. The main goal of the treatment is to teach the forgotten or erased walking motion by having the brain or the reflex center in the spinal cord repeat it flawlessly thousands of times.

What is Neuroplasticity and Its Role in Treatment?

Neuroplasticity is the brain's remarkable ability to renew itself, form new neural connections, and transfer the duties of damaged areas to healthy ones. In conditions like a stroke or brain injury, the cells controlling walking may die. However, other parts of the brain can learn to take over this task when they receive correct and continuous stimuli.

The walking robot is one of the leading devices that utilize the neuroplasticity mechanism most efficiently. When the robot guides the patient through continuous, rhythmic walking motions, intense sensory feedback travels from the muscles to the brain. This feedback triggers the brain to forge new neural pathways. When a patient focuses on their walking through virtual reality games on a screen, the brain's attention and learning centers become active, accelerating the healing process.

The Technological Infrastructure of the Walking Robot

Walking robots used in applications like Lokomat therapy consist of four main technological components working in harmony. This integration directly impacts patient safety and the success of the treatment.

The first component is the dynamic body weight support system. It lifts the weight the patient cannot carry, easing the load on the legs. The second component involves the robotic orthoses attached to the patient's hip and knee joints. Sensitive sensors inside these orthoses measure the patient's muscle strength and provide just enough support to complete the movement the patient cannot do alone. The third component is the treadmill, synchronized with the robotic legs. The fourth, and most motivating component, is the virtual reality screen positioned in front of the patient. Through this screen, patients can see themselves walking through a forest or overcoming obstacles.

How is Walking Robot Therapy Applied? Step-by-Step Process

The treatment process is meticulously managed, prioritizing the patient's safety and comfort. In the first step, the patient wears a special parachute-type harness. While the patient is in a wheelchair, this harness is connected to the device, and a mechanical hoist system gently lifts them into a standing position.

In the second step, the robotic legs are secured to the patient's thighs and calves with special straps. At this stage, the physiotherapist makes millimeter-precise adjustments to the device based on the patient's leg length and joint structure. In the third step, the computer is used to set the body weight support, walking speed, and the force the robot will apply.

In the final step, the walking begins. As the patient steps on the treadmill, they watch their simulation on the screen ahead. The physiotherapist continuously monitors the patient's muscle contractions, participation rate, and asymmetries in real-time via the computer screen, optimizing the settings throughout the session.

What to Expect During the Treatment Process?

The robotic rehabilitation process is painless and highly comfortable. Because the device takes over the movements the patient cannot perform, there is no overwhelming fatigue or exhaustion as seen in traditional methods. Sessions are usually planned between 20 and 45 minutes, tailored to the patient's tolerance.

Virtual reality games appearing on the screen during treatment prevent the patient from getting bored. Tasks like collecting coins or jumping over obstacles require active participation. This active engagement strengthens the muscles while keeping motivation high. In subsequent sessions, as the patient's own muscle strength improves, the support provided by the robot is gradually reduced.

Who Can Benefit from a Walking Robot?

The walking robot serves a wide range of patients who have lost their walking ability due to orthopedic or neurological reasons. Especially the use of a walking robot in stroke treatment plays a critical role in helping patients regain their independence. The main patient groups who can benefit from the device include:

• Patients who have had a stroke or brain hemorrhage
• Children and adults diagnosed with Cerebral Palsy (CP)
• Patients with Parkinson's disease and Multiple Sclerosis (MS)
• Individuals who have suffered traumatic brain and spinal cord injuries
• Patients with paraplegia and hemiplegia
• Those experiencing walking difficulties after brain tumor surgery
• Individuals with geriatric (age-related) gait and balance disorders
• Orthopedic patients with prosthetics after hip replacement (arthroplasty) or amputation

Who Should Not Use It? Contraindications

Although the walking robot is a highly safe technology, its use can be risky in certain medical conditions. During a detailed pre-treatment evaluation by a specialist physician, the patient's suitability for the device is checked. Situations where the walking robot is not used include:

• Patients with severe osteoporosis (due to fracture risk)
• Those with unhealed fractures or recent orthopedic trauma
• Patients with uncontrolled severe hypertension or hypotension
• Individuals with severe circulation disorders or a risk of deep vein thrombosis (blood clots)
• Those with advanced leg length discrepancy (disproportion)
• Patients who cannot maintain sitting balance at all or have severe involuntary (athetoid) movements
• Pregnant women or those who suspect they might be pregnant
• Patients taller than 2 meters or weighing more than 140 kilograms

How Does It Differ from Traditional Physical Therapy?

In traditional physical therapy, walking exercises are often done between parallel bars. The patient has to rely on their arms to hold onto the bars to stay upright. This prevents the patient from moving their arms in coordination with walking and causes excessive fatigue. With the walking robot, since body weight is supported by the device, the patient does not tire out and can move their arms in harmony with a natural walking swing.

In classic methods, it usually takes the physical effort of two or three physiotherapists simultaneously to help a paralyzed patient walk. In robotic systems, it is sufficient for a single physiotherapist to connect the patient to the device and monitor them via a computer. Furthermore, the robot measures muscle contractions and patient participation with objective data, offering the chance for immediate intervention in identified problem areas.

The Robotic Rehabilitation Process at BHT CLINIC

At the BHT CLINIC Physical Therapy and Rehabilitation department, we adopt a multidisciplinary approach for our patients experiencing walking difficulties. Our process begins with a detailed examination and neurological evaluation of the patient by our specialist physicians. Once the patient is deemed suitable for the walking robot, a personalized treatment protocol is prepared.

Throughout the treatment process, the progress of our patients is periodically monitored, and the number and duration of sessions are updated based on the improvements achieved. You can easily create an appointment via our BHT CLINIC appointment page to consult with our specialists and take the first step on your journey to recovering your health.

Frequently Asked Questions

How long does walking robot therapy take?

Session durations vary between a minimum of 20 and a maximum of 45 minutes, depending on the patient's physical endurance and treatment protocol. The total number of sessions is determined by the physician based on the patient's condition and recovery speed.

Can children use a walking robot?

Yes, pediatric robotic rehabilitation is possible. Children with a thigh bone length of 20 cm or more can safely undergo treatment without the need for an additional attachment, thanks to the device's special settings.

Is Lokomat therapy painful?

No, the treatment is completely painless. Because the device supports the patient's body weight and guides movements within physiological limits, no excessive load is placed on the joints, and no pain or strain is felt.

Does the walking robot guarantee walking?

The walking robot is a very powerful tool that accelerates the healing process and improves walking quality. However, the success of the treatment depends on the extent of the patient's neurological damage, the timing of the treatment initiation, and the patient's motivation.

How many sessions does it take to see results?

The first positive effects are usually noticed in the patient's posture and muscle tone after 10 to 15 sessions. For permanent and significant changes in walking function, a longer and regular treatment plan is generally required.

This article is for informational purposes only. Always consult your doctor for proper diagnosis and treatment. In case of a medical emergency in Türkiye, please call 112.