The Differential Impact of Acute Exercise and Mindfulness Meditation on Executive Functioning and Psycho-Emotional Well-Being in Children and Youth With ADHD Author: Hannah Bigelow1, Marcus D Gottlieb1, Michelle Ogrodnik2, Jeffrey D Graham3, Barbara Fenesi1 Affiliation: <sup>1</sup> Faculty of Education, Western University, London, ON, Canada. <sup>2</sup> Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, ON, Canada. <sup>3</sup> Faculty of Health Sciences, Ontario Tech University, Oshawa, ON, Canada. Conference/Journal: Front Psychol Date published: 2021 Jun 14 Other: Volume ID: 12 , Pages: 660845 , Special Notes: doi: 10.3389/fpsyg.2021.660845. , Word Count: 140 This study investigated how acute exercise and mindfulness meditation impacts executive functioning and psycho-emotional well-being in 16 children and youth with ADHD aged 10-14 (male = 11; White = 80%). Participants completed three interventions: 10 min of exercise, 10 min of mindfulness meditation, and 10 min of reading (control). Before and after each intervention, executive functioning (inhibitory control, working memory, task-switching) and psycho-emotional well-being (mood, self-efficacy) were assessed. Mindfulness meditation increased performance on all executive functioning tasks whereas the other interventions did not (d = 0.55-0.86). Exercise enhanced positive mood and self-efficacy whereas the other interventions did not (d = 0.22-0.35). This work provides preliminary evidence for how acute exercise and mindfulness meditation can support differential aspects of executive and psycho-emotional functioning among children and youth with ADHD. Keywords: acute exercise; attention-deficit hyperactivity disorder; executive functioning; inhibition; mindfulness meditation; psycho-emotional well-being; task switching; working memory. PMID: 34194365 PMCID: PMC8236645 DOI: 10.3389/fpsyg.2021.660845