Decision-Making Time Analysis for Assessing Processing Speed in Athletes during Motor Reaction Tasks.

Area of Science:

• Sports Science
• Human Motor Control
• Neuroscience

Background:

• Reaction time (RT) is a key metric for evaluating physical performance in motor tasks.
• Assessing processing speed is crucial for understanding athletic capabilities.
• Previous research has not fully explored the decision-making component of RT in athletes.

Purpose of the Study:

• To compare processing speed between athletes and a control group.
• To investigate the decision-making (DMK) and electromechanical delay (EMD) phases of RT.
• To explore differences in RT and its components based on handedness.

Main Methods:

• Twenty-five healthy volunteers (16 control, 9 athletes) performed visual-stimulus motor reaction tasks under three difficulty levels.
• Motion capture and electromyography recorded physiological data.
• RT was segmented into decision-making (DMK) and electromechanical delay (EMD) phases.

Main Results:

• Athletes demonstrated significantly faster overall RT (~30% faster than controls).
• While overall RT showed no hand differences, DMK time differed significantly.
• Controls exhibited ~20% longer DMK time for right-hand selection compared to left; athletes showed no such disparity.

Conclusions:

• Quantifying the decision-making component of RT is vital for assessing processing speed in sports.
• This approach can monitor adaptations in motor-cognitive and neuromuscular processes.
• Findings offer new perspectives on handedness research in motor control.