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Original Research ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Psychiatry | doi: 10.3389/fpsyt.2019.00661

Interval Training Improves Depressive Symptoms but not Anxious Symptoms in Healthy Women

  • 1Faculty of Physical Education and Dance, Federal University of Goiás, Brazil
  • 2Instituto de Ciências Biológicas, Universidade Federal de Goiás, Brazil
  • 3Collegiate of Physical Education, State University of Bahia, Brazil

Background: Despite important advances in the relationship between exercise and mood disorders, especially regarding moderate intensity continuous training, there is a lack of information about the chronic effects of interval training protocols. We compared the effects of two different interval training protocols (sprint interval training [SIT] and high intensity interval training [HIIT]) on depressive and anxious symptoms in healthy women.
Methods: Thirty-six women were randomly allocated to a HIIT (n=18) or SIT (n=18) groups and performed 24 training sessions over eight weeks (thrice a week). Levels of state-trait anxiety and depressive symptoms were evaluated using State–Trait Anxiety Inventory and Beck Depression Inventory, respectively, before and after training intervention.
Results: Two-way analysis of variance (ANOVA) did not reveal significant effect of time (p>0.05), group intervention (p>0.05) or time x group interaction (p>0.05) on state-trait anxiety; however, two-way ANOVA showed a significant effect of time on depressive symptoms (p=0.025) but not group effect (p=0.548) or time x group interaction (p=0.373). Depressive symptoms of the participants in both HIIT and SIT group reduced from baseline (ΔHIIT) -17.5±27.9% and (ΔSIT) -28.6±47.5%, respectively.
Conclusion: HIIT and SIT groups similarly improved depressive symptoms but not anxiety levels in healthy and physically active young adult women.

Keywords: exericse, Depression, Anxiety, Mood disorder, Mental Health

Received: 26 May 2019; Accepted: 15 Aug 2019.

Copyright: © 2019 Pedro araujo naves, Gentil, Naves, Rebelo, Santos, Braga and De Lira. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Claudio A. De Lira, Faculty of Physical Education and Dance, Federal University of Goiás, Goiânia, Goiás, Brazil,