Comparison of rest-break interventions during a mentally demanding task

Area of Science:

• Cognitive Psychology
• Human Well-being
• Educational Psychology

Background:

• Mentally demanding tasks, such as academic lectures, can lead to fatigue and reduced vigor.
• Effective rest break strategies are crucial for maintaining student well-being and cognitive performance.
• Limited research exists on optimizing rest breaks during prolonged cognitive load.

Purpose of the Study:

• To investigate the effectiveness of physical activity and relaxation exercises during rest breaks.
• To compare these interventions against unstructured breaks and a no-break control condition.
• To assess the impact on student well-being, specifically fatigue and vigor.

Main Methods:

• Sixty-six university students participated in a 4-hour academic lecture.
• Interventions included a control (no break), unstructured break, physical activity break, and relaxation exercise break.
• Well-being measures (fatigue and vigor) were assessed immediately before, after, and 20 minutes post-break.

Main Results:

• Both physical activity and relaxation breaks increased vigor and decreased fatigue compared to no break.
• Compared to unstructured breaks, physical activity further increased vigor, and relaxation further decreased fatigue.
• These positive effects on well-being persisted for at least 20 minutes after the break concluded.

Conclusions:

• Rest breaks incorporating physical activity or relaxation are more effective than unstructured breaks for enhancing well-being during mentally demanding tasks.
• These structured interventions can significantly improve student vigor and reduce fatigue.
• The benefits of optimized rest breaks extend into the continuation of the task, supporting sustained cognitive engagement.