Predicting affective responses to exercise using resting EEG frontal asymmetry: does intensity matter?

Area of Science:

• Psychology
• Neuroscience
• Exercise Science

Background:

• Affective responses to exercise are crucial for sustained engagement in physical activity.
• Resting frontal electroencephalogram (EEG) asymmetry is an established individual difference measure of affective style.

Purpose of the Study:

• To investigate if resting frontal EEG asymmetry predicts affective responses to exercise at varying intensities.
• To examine the relationship between EEG asymmetry and affect during and after exercise relative to the ventilatory threshold (VT).

Main Methods:

• Collected resting EEG data from 30 participants.
• Assessed affective responses (Energetic Arousal [EA] and Tense Arousal [TA]) before, during, and after treadmill running at below-VT, at-VT, and above-VT intensities.
• Utilized the Activation-Deactivation Adjective Check List for affect assessment.

Main Results:

• Resting mid-frontal asymmetry predicted EA immediately after below-VT exercise.
• Resting lateral frontal asymmetry predicted EA 20 minutes post-exercise.
• Resting mid-frontal asymmetry predicted EA immediately after and post-cool down for above-VT exercise.
• Greater relative left frontal activity consistently predicted lower EA post-exercise.

Conclusions:

• Frontal EEG asymmetry is a significant predictor of affective responses to exercise.
• Findings suggest left frontal activity relates to lower energetic arousal, potentially indicating approach motivation, particularly at higher exercise intensities.
• Results challenge the valenced motivation model but may support the motivation direction model.