INFORMATION

Psicothema was founded in Asturias (northern Spain) in 1989, and is published jointly by the Psychology Faculty of the University of Oviedo and the Psychological Association of the Principality of Asturias (Colegio Oficial de Psicología del Principado de Asturias).
We currently publish four issues per year, which accounts for some 100 articles annually. We admit work from both the basic and applied research fields, and from all areas of Psychology, all manuscripts being anonymously reviewed prior to publication.

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  • Director: Laura E. Gómez Sánchez
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Effects of High-Intensity Interval Training on Mental Health Outcomes in Adolescents and Young Adults: A Systematic Review and Meta-Analysis

Miguel Heres1, Susana Pulgar1, Marcos Quintana-Cepedal2, Maria Fernandez-del-Valle2, Hugo Olmedillas2


1 European University of Atlantic (Spain)
2 University of Oviedo (Spain)

Abstract: Background: Given rising physical inactivity and mental health challenges, time-efficient interventions like High- Intensity Interval Training (HIIT) require rigorous evaluation. This systematic review and meta-analysis synthesized the evidence for HIIT’s effects on mental health in adolescents and young adults. Method: Six electronic databases were systematically searched for Randomized Controlled Trials (RCTs) up to September 2025, comparing HIIT (defined as ≥85% HRmax) against a passive control group in non-clinical populations aged 11-29 years. Results: 11 RCTs comprising 1,401 participants were included. The random-effects meta-analysis showed a modest reduction in perceived stress associated with HIIT (SMD = −0.29, 95% CI −0.59 to 0.004, p = .053), although the effect did not reach conventional statistical significance and substantial uncertainty remained. No statistically significant effects were observed for depressive symptoms, anxiety, or psychological wellbeing. Conclusions: HIIT may be associated with modest reductions in perceived stress; however, the certainty of the evidence was low to very low across all outcomes. These findings should be interpreted with caution, and further high-quality research is needed to clarify the effects of HIIT on mental health outcomes.


Resumen: Antecedentes: Ante la creciente inactividad física y los problemas de salud mental, las intervenciones eficientes en tiempo, como el entrenamiento interválico de alta intensidad (HIIT), requieren una evaluación rigurosa. Esta revisión sistemática y metaanálisis sintetizó la evidencia sobre los efectos del HIIT en la salud mental de adolescentes y adultos jóvenes. Método: Se realizaron búsquedas sistemáticas en seis bases de datos electrónicas hasta septiembre de 2025 para identificar ensayos controlados aleatorizados que compararon HIIT (≥85% de la frecuencia cardíaca máxima) con un grupo control pasivo en poblaciones no clínicas de entre 11 y 29 años. Resultados: Se incluyeron 11 estudios con 1,401 participantes. El metaanálisis con modelos de efectos aleatorios mostró una reducción modesta del estrés percibido a favor del HIIT (DME = −0.29; IC del 95%: −0.59 a 0.004; p = .053), sin alcanzar la significación estadística convencional y con elevada incertidumbre. No se observaron efectos significativos sobre síntomas depresivos, ansiedad ni bienestar psicológico. Conclusiones: HIIT podría asociarse con reducciones modestas del estrés percibido; sin embargo, la certeza de la evidencia fue baja a muy baja. Se requieren estudios de mayor calidad para clarificar sus efectos sobre la salud mental.

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Factor Impacto JCR SSCI 2024 = 3.5 (Q1) · JIF percentile 2024 = 88.1 · JCI = 1.32 | CiteScore SCOPUS 2025 = 7.3 (Q1) · SJR 2025 = 1.075 · SNIP 2024 = 1.458