Neural and Molecular Mechanisms of Muscle Memory 

Presenter: Rayah Landers

Faculty Sponsor: Reena Randhir

School: Springfield Technical Community College

Research Area: Biology

Session: Poster Session 2, 11:30 AM - 12:15 PM, Auditorium, A33

ABSTRACT

When learning new skills, individuals must consciously focus on the action or movements they are performing in order to perfect them. Because most skills are not mastered on the first attempt, repeated practice is necessary to achieve consistent performance. This occurs due to the phenomenon best known as muscle memory. Muscle memory is something people rely on daily, from simple actions like scrolling on a phone or typing on a keyboard to more complex tasks such as running a marathon or riding a bike. These motor pathways strengthen and refine these movements with practice, allowing the muscles and the nervous system to retain this information. The long-lasting memory will allow for rapid relearning after periods of inactivity. The objective of this research is to explore how repetitive physical movements help the body to strengthen neural pathways enabling more efficient and automatic execution. A systematic literature review was conducted in PubMed to understand how muscle memory allows for rapid learning after periods of inactivity. Anatomically motor nerve impulses are processed in the motor cortex, cerebellum, and basal ganglia in the brain. Repetitive movements cause neuroplastic changes such as strengthening, cortical reorganization, and increased neural efficiency. At the cellular level, muscle memory involves both neural plasticity and muscle adaptation, including myonuclear retention, increased protein synthesis, and long-lasting changes in muscle fiber structure that support rapid retraining after periods of inactivity. In conclusion, these mechanisms provide a framework for improving skill acquisition and developing rehabilitation strategies that support lasting functional recovery following injury or neurological impairment.

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