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Stroke remains one of the leading causes of long-term disability worldwide, affecting millions of individuals each year. While physical rehabilitation has long been the cornerstone of recovery, an increasing body of research points to the powerful role of mental practice and motor imagery in supporting stroke rehabilitation outcomes. These cognitive techniques work by activating the same brain regions involved in physical movement, offering a valuable complement to hands-on therapy — and opening new possibilities when paired with advanced rehabilitation technologies such as lower limb exoskeleton robots.
Mental practice, also referred to as motor imagery or mental rehearsal, is a cognitive technique in which an individual vividly imagines performing a movement without physically executing it. For stroke survivors, this means visualizing actions such as walking, reaching for an object, or standing up from a chair — all within the mind. Research has shown that this form of rehearsal activates the brain's motor cortex, premotor areas, and cerebellum in patterns strikingly similar to those observed during actual physical movement.
Motor imagery can be performed from two perspectives. Internal imagery involves experiencing the movement from a first-person point of view, as if looking through one's own eyes and feeling the sensations of the motion. External imagery adopts a third-person perspective, observing oneself performing the action from the outside. Both approaches have been shown to stimulate neuroplasticity — the brain's ability to reorganize and form new neural connections — making them valuable tools at every stage of stroke recovery.
Neuroplasticity is the mechanism through which the brain compensates for injury by strengthening existing neural pathways, recruiting alternative circuits, and forming new synaptic connections. After a stroke, the brain enters a period of heightened plasticity, during which repetitive, task-specific stimulation can drive meaningful functional recovery. Mental practice leverages this window by repeatedly activating motor-related brain regions — including the primary motor cortex, supplementary motor area, and basal ganglia — without requiring the patient to move.
A 2025 systematic review of 41 randomized controlled trials, published in the journal Biomedicines, found that motor imagery interventions produced measurable improvements in gait, balance, and upper limb function among stroke survivors. The review noted that combining motor imagery with physical gait training or action observation appeared to enhance motor recovery, particularly in walking and balance outcomes. These findings reinforce the idea that mental practice does not ｒｅｐｌａｃｅ physical therapy — it amplifies its effects.
The most effective rehabilitation protocols treat mental practice and physical therapy as complementary, not competing, approaches. When a stroke survivor mentally rehearses a walking sequence before stepping onto a treadmill or into a robotic gait trainer, the brain is primed for movement. Neural circuits are already partially activated, reducing the cognitive load required to initiate and sustain physical effort. This priming effect can lead to more productive therapy sessions and better skill retention over time.
For lower limb rehabilitation specifically, mental practice can focus on key functional movements: weight shifting from one leg to the other, hip and knee flexion during the swing phase of gait, foot placement on uneven surfaces, and the coordinated rhythm of a natural walking pattern. When these mental rehearsals are followed by real physical practice, the brain has already laid down a preliminary motor blueprint, making the physical execution more fluid and efficient.
One of the most exciting developments in modern stroke rehabilitation is the integration of lower limb exoskeleton robots into therapy protocols. These wearable robotic devices support and guide the patient's legs through natural walking patterns, providing the repetitive, high-intensity training that is critical for neuroplasticity. Devices like the Bear Adult exoskeleton — designed for individuals with lower limb motor dysfunction caused by stroke — use biomechanical modeling to simulate natural human gait, delivering up to 50Nm of continuous torque across multiple training modes.
When mental practice is combined with robot-assisted gait training, the two modalities reinforce each other. During exoskeleton-assisted walking, the patient's nervous system receives consistent, correct sensory feedback about what proper gait feels like. When the patient later engages in mental rehearsal, they can draw on these accurate sensory memories — the rhythm of the steps, the sensation of weight transfer, the posture of the trunk — to create richer, more effective motor imagery. This creates a positive feedback loop: the exoskeleton teaches the brain what correct movement feels like, and mental practice consolidates that learning between sessions.
The Gait Assist exoskeleton takes this concept further with its multi-sensor fusion system that identifies movement intentions. For stroke survivors who retain some residual motor function, the ability of the device to detect and respond to the user's own effort to move creates an ideal environment for combining mental intention with physical action. When the patient thinks about taking a step — engaging in a form of motor imagery in real time — the exoskeleton senses that intention and provides the mechanical assistance needed to complete the movement. The mental act of intending to walk and the physical act of walking become seamlessly connected.
For stroke survivors and their caregivers, incorporating mental practice into a daily routine does not require expensive equipment or specialized facilities. The key requirements are a quiet environment, a comfortable seated or reclined position, and a focused period of approximately 15 to 20 minutes. Here are some practical steps to get started:
Choose a specific, meaningful movement. Rather than trying to rehearse a full walking sequence, begin with one component — such as lifting the affected foot off the floor, bending the knee, or shifting weight onto the affected leg. The movement should be personally relevant and tied to a daily activity the patient wants to regain.
Engage multiple senses. Effective motor imagery goes beyond visual pictures. Try to feel the sensation of the floor under the foot, the contraction of the thigh muscles, the slight shift in balance as weight transfers from one leg to the other. The richer the sensory experience, the more powerfully the brain's motor networks are activated.
Practice consistently. Research suggests that mental practice works best when performed regularly — ideally once or twice daily, five to seven days per week. Short, frequent sessions are more effective than occasional long ones. Many therapists recommend spending 3 to 5 minutes on mental rehearsal immediately before a physical therapy session to prime the brain for movement.
Pair mental practice with physical training. The strongest evidence supports combining mental imagery with actual physical rehabilitation. If the patient is using a lower limb rehabilitation exoskeleton, spend a few minutes mentally rehearsing the walking pattern before the session begins. After the session, a brief period of mental review can help consolidate the motor learning that occurred during physical practice.
Mental practice is broadly accessible across the stroke recovery continuum. It is particularly valuable for individuals in the acute and subacute phases who may have limited mobility and cannot yet participate in intensive physical therapy. Even patients with severe motor impairment can benefit — the brain's motor regions can be activated through imagery even when overt movement is not yet possible.
Chronic stroke survivors — those months or years beyond their initial event — can also benefit from mental practice. Neuroplasticity does not have a fixed expiration date; the brain retains the capacity to reorganize and adapt with consistent, meaningful stimulation. For chronic patients who have plateaued with conventional therapy alone, adding mental practice alongside technology-assisted rehabilitation with exoskeleton devices may open new pathways for progress.
It is important to maintain realistic expectations about what mental practice can and cannot do. Mental imagery is a supplementary tool, not a replacement for physical and occupational therapy. It works best when integrated into a comprehensive rehabilitation program that includes hands-on treatment, task-specific training, and, where appropriate, advanced technologies such as robotic exoskeletons.
Not every stroke survivor will respond to mental practice in the same way. Factors such as the location and severity of the stroke, the patient's ability to concentrate, and their capacity for vivid imagery can all influence outcomes. Some individuals may find it difficult to generate clear mental images of movement, particularly if they have lost the sensory memory of what that movement feels like. In such cases, watching videos of the target movement or observing a therapist demonstrate the action can help build a mental reference library before attempting imagery on one's own.
The future of stroke rehabilitation lies in the thoughtful integration of cognitive and physical approaches. As exoskeleton technology continues to advance — with devices becoming lighter, more responsive, and more affordable — the opportunity to combine mental practice with robotic-assisted therapy will expand. Imagine a rehabilitation session in which a patient first engages in guided motor imagery, mentally rehearsing a walking pattern, and then steps into a lower limb exoskeleton robot that translates that mental preparation into supported, repetitive physical practice. The boundary between thinking about movement and performing movement becomes increasingly seamless.
At Mona Care, we are committed to supporting this vision of integrated rehabilitation. Our range of rehabilitation products — including the Bear Adult and Gait Assist lower limb exoskeleton robots, the Rabbit Kid children's exoskeleton, and electric multifunction nursing beds — are designed to work alongside established therapeutic approaches, including cognitive techniques like mental practice and motor imagery. By combining the power of the mind with the precision of advanced robotics, stroke survivors can pursue recovery with greater confidence and purpose.
If you would like to learn more about how our rehabilitation solutions can support your recovery journey, please contact us or visit our product pages for detailed information.