Long-term motor skill training with individually adjusted progressive difficulty enhances learning and promotes...

Area of Science:

• Neuroscience
• Motor Control
• Motor Learning

Background:

• Motor skill acquisition relies on central nervous system plasticity.
• The specific behavioral factors driving long-term corticospinal plasticity and motor expertise are not fully understood.

Purpose of the Study:

• To investigate the behavioral and electrophysiological effects of individually tailored progressive practice during long-term motor skill training.
• To compare progressive practice with constant difficulty practice in enhancing motor skill learning and neural plasticity.

Main Methods:

• Two groups of participants trained a visuomotor task for six weeks.
• One group received constant task difficulty; the other received progressively increasing, individually tailored difficulty.
• Electrophysiological measures assessed corticospinal excitability.

Main Results:

• Progressive practice led to a two-fold greater performance at an advanced task level compared to constant practice.
• Progressive practice was associated with increased corticospinal excitability.
• These performance and plasticity differences persisted for at least 8 days.

Conclusions:

• Progressive practice enhances motor skill learning and promotes corticospinal plasticity.
• Continuously challenging individuals is vital for promoting neural plasticity, skilled performance, and recovery in both athletes and patients.