Impact of Cognitive-Motor Dual-Task Training on Predictive Brain Functions and Functional Performance of Older...

Area of Science:

• Neuroscience
• Gerontology
• Rehabilitation Science

Background:

• Age-related cognitive and motor declines are significant concerns.
• Cognitive-motor dual-task (CMDT) training shows promise in counteracting these declines.
• Previous research linked CMDT benefits to frontal cortex activity but not specific processing stages.

Purpose of the Study:

• To investigate the effect of CMDT training on predictive brain function in healthy older adults.
• To compare CMDT training with standard motor training in older adults.
• To identify the specific stage of cognitive task processing influenced by CMDT.

Main Methods:

• Sixty healthy older adults were randomized into CMDT or standard motor training groups for five weeks.
• Functional motor and cognitive performance were assessed pre- and post-training.
• Electroencephalography (EEG) measured preparatory event-related potentials to assess predictive brain function.

Main Results:

• CMDT training demonstrated superiority over standard motor training in improving both motor and cognitive performance.
• Enhanced frontal cortex activity was observed, specifically during the predictive stage of cognitive task processing.
• CMDT training improved motor and cognitive control, leading to better mobility and behavioral outcomes.

Conclusions:

• CMDT training enhances predictive processing in the frontal cortex during cognitive tasks in older adults.
• The simultaneous engagement of cognitive and motor networks drives functional plasticity in aging.
• CMDT is a practical, neurophysiologically supported strategy for promoting healthy aging.