Moderate-to-Vigorous Physical Activity and Psychological Ill-Being in Adolescents With ADHD: The Mediating Effects of Physical Self-concept.
Boosting MVPA lifts physical self-concept in ADHD teens, cutting depression and stress about twenty percent.
01Research in Context
What this study did
Liu et al. (2025) tracked adolescents with ADHD for several weeks.
Each teen wore an accelerometer to record moderate-to-vigorous physical activity.
The team also gave questionnaires on physical self-concept, depression, and stress.
They used statistics to see if self-concept explains why exercise helps mood.
What they found
More active teens felt better about their bodies.
That better self-view carried about one-fifth of the total drop in depression and stress.
So MVPA works partly by making kids feel stronger and more coordinated.
How this fits with other research
The same lab published a twin paper, Liu et al. (2025), swapping suicidal thoughts for depression.
There, depression fully mediated the link; here, self-concept only partly does.
The difference is the mediator chosen, not a true clash.
Wang et al. (2024) earlier showed physical activity helps ADHD kids by shortening sleep latency.
Together the studies build a chain: move more → sleep faster, feel stronger, mood lifts.
Zhu et al. (2016) meta-analysis already said exercise helps cognition in ADHD; Chang widens the benefit to emotional health.
Why it matters
You now have two clear levers: better sleep and stronger self-concept.
Prescribe MVPA as a low-cost mood buffer for ADHD teens.
Track minutes with a cheap wristband and ask, "Do you feel stronger?" each week.
Even small gains there predict real drops in depression and stress.
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02At a glance
03Original abstract
The current study aimed to (1) assess the mediating effect of physical self-concept between moderate-to-vigorous physical activity (MVPA) and psychological ill-being in adolescents with attention-deficit/hyperactivity disorder (ADHD); and (2) explore potential moderating effects of participants' age, maternal education level, and socioeconomic status. Sixty-one adolescents aged 12-17 with ADHD met the inclusion criteria (Mage = 14.46 ± 1.51 years). MVPA levels were assessed with accelerometers worn around their waist for seven consecutive days. Physical self-concept and psychological ill-being (i.e., depression, anxiety, and stress) were examined using questionnaires. Pearson correlations among those variables were examined. Mediation analyses were performed with adjustments for confounders. Moderator analyses were also conducted. Physical self-concept partially mediated the association between MVPA and depression, explaining 23% of the variance. Meanwhile, physical self-concept partially mediated the association of MVPA with stress and the indirect effect accounted for 20% of the variance, mainly driven by the appearance dimension. Age significantly moderated the path from physical self-concept to depression, while socioeconomic status moderated the direct effect of MVPA on depression. Additionally, maternal education level significantly moderated the association between physical self-concept and stress. Methods to prevent depression and stress in adolescents with ADHD should include the effort to promote MVPA levels, which could increase the level of physical self-concept, especially the positive self-perception of appearance in this population. Notably, older adolescents with ADHD and those with low maternal education attainment and low socioeconomic status might benefit more from MVPA in this context.
Journal of autism and developmental disorders, 2025 · doi:10.1016/j.psychres.2017.09.072