ArticleSports (Basel, Switzerland)2026
Influence of Maturity Status and Gender on Body Composition and Physical Fitness Adaptations to a Mobile-App-Based Physical Activity Intervention in Adolescents.
Article in Sports (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The use of mobile applications to promote physical activity in adolescents has shown promising results regarding body composition and fitness. However, current evidence is limited by treating adolescents as a homogeneous group, often overlooking whether biological maturity status modulates these effects. This randomized controlled trial analyzed whether biological maturity status and gender modulate the effects of a 10-week step-tracker app intervention in 395 adolescents (13.95 ± 1.20 years). The experimental group (EG) completed walking sessions at least three times per week recorded via the app, while the control group (CG) maintained habitual activities. Somatic maturation was estimated via predicted age at peak height velocity. The 10-week intervention consisted of an app-based step-tracker program (≥3 sessions/week, with goals scaling up to 12,500 steps day). Biological maturity status does not act as a global moderator of the intervention, with its influence being strictly restricted to minor, outcome-specific variations in adiposity metrics among early-maturing males. Males in the EG achieved significant reductions in fat mass (
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