Why This Study Matters

Exercise is often recommended for mental health, but adult ADHD has had relatively little randomized-trial evidence. This study asked a more practical question: if adults with ADHD follow a structured exercise program in addition to usual care, do symptoms actually improve?

Key Findings

• The exercise group had a significantly greater reduction in ADHD symptoms than treatment as usual at 12 weeks
• protocol was to complete at least two supervised 50-minute sessions per week, using interval-based aerobic and strength training plus flexibility work, with heart rate targeted at 60%–90% of maximum.
• Participants were also encouraged to add exercise outside the clinic to reach at least 150 minutes per week above 60% of maximum heart rate.
• Beyond ADHD symptoms, the exercise group also improved on insomnia and health-related quality of life

My Take

This paper supports exercise as a real adjunctive intervention, not just a generic wellness recommendation. What makes it more convincing is that the program was structured, monitored, and fairly demanding. The improvement signal was not limited to self-report alone, which makes the findings more interesting. Still, this was an add-on study, so I would interpret it as evidence that exercise can strengthen an ADHD treatment plan—not replace one.

Source

Svedell LA, Lindvall MA, Holmqvist KL, Cao Y, Msghina M. Physical exercise as add-on treatment in adults with ADHD - the START study: a randomized controlled trial. Front Psychiatry. 2025 Oct 30;16:1690216. doi: 10.3389/fpsyt.2025.1690216.

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