Behavioral and neurocognitive effects of judo training on working memory capacity in children with ADHD: A randomized controlled trial

•Judo training increased visuospatial working memory capacity in children with ADHD.•Increased contralateral delay activity at high memory load was found following judo training.•This change indexed more effective maintenance processes and/or increased attentional control.•Benefits for working memory capacity occurred despite no changes in motor skills.