🤖 AI Summary
This study investigates the mechanistic pathways through which acute aerobic exercise intensity modulates executive function and sleep, with particular focus on emotional state as a potential mediator.
Method: Leveraging publicly available lifelog data from 14 participants, we integrated multimodal physiological and behavioral signals acquired via IoT-enabled wearable sensors. Correlational analyses and formal mediation modeling were employed to test the exercise–emotion–cognition pathway.
Contribution/Results: We provide the first empirical evidence that moderate-intensity acute exercise significantly enhances positive affect (i.e., stress reduction and alertness), which in turn improves decision-making and sustained attention. Rigorous mediation analysis confirmed emotion change—not exercise per se—as the statistically significant and necessary intermediary variable driving executive function enhancement. These findings reveal a novel “emotion-mediated” cognitive regulation mechanism, offering both empirical validation and a methodological framework for affect-informed, personalized exercise interventions targeting cognitive and sleep outcomes.
📝 Abstract
IoT-based devices and wearable sensors are now common in daily life, with smartwatches, smartphones, and other digital tools tracking physical activity and health data. This lifelogging process provides valuable insights into people's lives. This paper analyzes a publicly available lifelog dataset of 14 individuals to explore how exercise affects mood and, in turn, executive function. Results show that moderate physical activity significantly improves mood, reduces stress, and enhances cognitive functions like decision-making and focus. Improved mood not only boosts exercise performance but also strengthens executive function, suggesting exercise benefits both emotional and cognitive well-being. This opens the door for personalized exercise plans tailored to emotional states to optimize brain function.