Exercise may sharpen impulse control in young people with ADHD, but evidence remains uncertain

A meta-analysis of 25 randomised trials found a modest benefit for inhibitory control and possible improvements in anxiety and depression, but researchers stressed that the evidence is limited and inconsistent.

A new meta-analysis suggests that exercise may help children and teenagers with attention-deficit/hyperactivity disorder improve inhibitory control, one of the core executive functions involved in resisting impulses and staying on task. Researchers pooling 25 randomised controlled trials, involving 1,116 participants, found a statistically significant benefit for inhibitory control, although they also cautioned that the overall certainty of the evidence was low. The review, published in Frontiers in Psychology, did not find similarly clear results for working memory, cognitive flexibility or externalising symptoms, and said the findings were uneven across studies.

The paper adds to a growing body of research indicating that movement-based interventions can support cognition in young people with ADHD. Previous reviews have reached broadly similar conclusions, with some finding benefits for inhibitory control and cognitive flexibility, and others reporting improvements in executive function after chronic exercise programmes. A separate analysis published in 2026 also concluded that chronic physical exercise may improve executive-function performance, especially inhibitory control, while calling for more standardised trials. Researchers have increasingly examined whether exercise can be used as a complement to existing ADHD treatment rather than as a replacement for medication or behavioural support.

The latest review also looked beyond cognition to mental health-related outcomes. It found a statistically significant improvement in internalising symptoms, such as anxiety and depression, but the authors rated that evidence as very low certainty. By contrast, the pooled estimate for externalising symptoms, including behaviour such as aggression or rule-breaking, was not significant. The authors said the effects varied widely between studies, with broad confidence intervals and limited stability, meaning the results should be interpreted with caution.

That uncertainty is important for parents and clinicians considering how to apply the findings. Earlier reviews have suggested that the size and type of exercise matter, with aerobic activity, structured programmes and interventions involving repeated sessions sometimes appearing more effective than one-off exercise. Other studies have pointed to possible moderators such as intensity, session count and the kind of motor skill involved. Taken together, the evidence supports physical activity as a promising addition to care for children and adolescents with ADHD, but not yet as a stand-alone solution.