Ecological validity in exercise neuroscience research: A systematic investigation.

Area of Science:

• Exercise neuroscience
• Cortical processes
• Motor behavior

Background:

• Ecological validity is crucial for real-world applicability in exercise neuroscience.
• Mobile electroencephalography studies often occur in controlled labs, potentially limiting ecological validity.
• Assessing the representativeness of lab-based research to actual sports performance is essential.

Purpose of the Study:

• To evaluate the ecological validity of current exercise neuroscience research using a systematic approach.
• To identify specific elements lacking in ecological validity within the field.
• To provide recommendations for enhancing the real-world relevance of future studies.

Main Methods:

• A systematic literature search identified studies on cortical dynamics during goal-directed sports movements.
• An original ecological validity tool assessed five elements: environment, stimulus, response, body, and mind.
• Studies were rated on artificiality-naturality and simplicity-complexity continua.

Main Results:

• The 'environment' element received the lowest ecological validity ratings.
• 'Stimulus', 'body', and 'mind' elements showed mediocre ratings.
• 'Response' element achieved the highest ratings; closed-skill indoor sports studies scored higher than outdoor ones.

Conclusions:

• Current exercise neuroscience research often lacks sufficient ecological validity, particularly concerning environmental factors.
• Improvements are needed in study design to better reflect real-world sports settings.
• Future research should prioritize naturalistic environments and complex, adaptive sport elements to boost ecological validity.