Physical activity intensity and older adolescents’ stress : The ‘STress-Reactivity after Exercise in Senior Secondary EDucation’ (STRESSED) 3-arm randomised controlled trial
Smith, J. J., Beauchamp, M. R., Puterman, E., Leahy Angus, A., Valkenborghs, S. R., Wade, L., Chen, F., & Lubans, D. R. (2025). Physical activity intensity and older adolescents’ stress : The ‘STress-Reactivity after Exercise in Senior Secondary EDucation’ (STRESSED) 3-arm randomised controlled trial. Psychology of Sport and Exercise, 76, Article 102754. https://doi.org/10.1016/j.psychsport.2024.102754
Julkaistu sarjassa
Psychology of Sport and ExerciseTekijät
Päivämäärä
2025Tekijänoikeudet
© 2024 The Author(s). Published by Elsevier Ltd.
Objectives
Late adolescence (15-19 years) is a period of heightened susceptibility to stress, but regular physical activity may attenuate reactivity to stressors. We aimed to explore the effects of physical activity intensity on older adolescents’ stress-reactivity and self-reported mental health.
Design
and methods. Three-arm randomised controlled trial in New South Wales, Australia (April-June, 2021). Thirty-seven older adolescents (16.1±0.2 years, 59.5% female) were randomised to: i) non active control (CON), ii) light-intensity physical activity (LPA), or iii) moderate-to-vigorous-intensity physical activity (MVPA). Physical activity groups participated in 2 x 20-min sessions/week for 6 weeks. Salivary cortisol (sCort) reactivity to induced stress was assessed using the Trier Social Stress Test for Groups and quantified as area under the curve (sCortAUC; Primary outcome). Secondary outcomes included peak cortisol (sCortPeak), subjective-reactivity, perceived stress, and non-specific psychological distress. Group differences were assessed using multiple linear regression and quantified using Cohen’s d.
Results
No effects were observed for sCortAUC or sCortPeak and the pattern of effects for subjective-reactivity was inconsistent. Effects for self-reported mental health were also non-significant (p > .05 for all) but of meaningful magnitude, favouring LPA and MVPA over CON (d’s = -0.38 to -0.54). Delivery fidelity was high, satisfaction was moderate-to-high, and there was no evidence of harm. However, recruitment, retention for sCort measures, and adherence were lower than expected.
Conclusion
Suboptimal recruitment, retention, and adherence limited our ability to conclude on the effect of physical activity intensity on older adolescents’ sCort-reactivity to induced stress. We observed potentially meaningful effects on self-reported mental health irrespective of intensity, which could be confirmed in a future powered trial.
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Julkaisija
ElsevierISSN Hae Julkaisufoorumista
1469-0292Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/243321336
Metadata
Näytä kaikki kuvailutiedotKokoelmat
- Liikuntatieteiden tiedekunta [3120]
Lisätietoja rahoituksesta
This project was supported by philanthropic funding administered by the Hunter Medical Research Institute (HMRI).Lisenssi
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