May 15, 2025 – In the month dedicated to stroke prevention, we want to emphasize an important concept: in Rehabilitation Medicine time is rewiring the brain. During the post-acute phase of a stroke, it is essential to provide the patient with intensive rehabilitation that maximizes metaplasticity.
- What is it about? Metaplasticity refers to the plasticity of synaptic plasticity. It is a higher-order form of neuroplasticity that regulates how easily neurons form and strengthen connections. It is well established that prior neural activity influences the brain’s current capacity for change.
- Various factors, including physical activity, stress, depression, sleep quality, social interactions, diet, and lifestyle habits, influence metaplasticity through epigenetic regulation, thereby modifying the response thresholds of numerous brain circuits.
- The brain, following a stroke, has the ability to spontaneously modify connections within the prefrontal cortex. These structural changes can further enhance neuroplasticity. Rehabilitation can also influence metaplasticity, thereby increasing the brain’s responsiveness during the recovery process.
- There are three key elements to consider: 1) In the first 6 to 12 months following the acute event, metaplasticity is significantly heightened. It is crucial not to underestimate a patient’s potential for recovery, even 6 to 8 months post-event. 2) Stress, depression, and poor sleep quality should be closely monitored and managed, as they can contribute to maladaptive plasticity. 3) Even improperly executed rehabilitative exercises, such as poorly performed walking, can result in maladaptive plasticity. Therefore, it is essential to pay careful attention to the execution of movements.
