Volume 12 Supplement 1

Scientific Abstracts Presented at the International Research Congress on Integrative Medicine and Health 2012

Open Access

P02.12. Temporal dynamics of symptom and treatment variables in a lifestyle-oriented approach to anxiety disorder: a single-subject time-series analysis

  • R Hoenders1,
  • E Bos1 and
  • P de Jonge2
BMC Complementary and Alternative MedicineThe official journal of the International Society for Complementary Medicine Research (ISCMR)201212(Suppl 1):P68

https://doi.org/10.1186/1472-6882-12-S1-P68

Published: 12 June 2012

Purpose

Although there is increasing evidence for the positive effects of a healthy lifestyle on mental health, most studies only take into account a single lifestyle factor, ignore the possibility of bidirectional causality, and focus on average group results.

Methods

In the present single-subject study, we used multivariate time-series analysis (Vector Auto Regressive modeling) to unravel the dynamic interplay between symptom and treatment variables in a multi-component treatment of anxiety disorder. Main treatment variables were two lifestyle factors (physical activity and relaxation).

Results

The patient in this study recovered completely. Time-series analysis revealed an intricate pattern of dynamic relationships between symptom and treatment variables. Relaxation was predictive of symptom reduction but physical activity surprisingly worsened the symptoms. Changes in energy predicted changes in anxiety. Evidence for bidirectional causality was present as well, with changes in relaxation predicting changes in energy and vice versa, indicating a positive feedback loop.

Conclusion

This study aimed to unravel the dynamic relationships between psychological symptoms and the health-related behaviors intended to improve these symptoms. These relationships turned out to be characterized by bidirectionality, lagged influences, indirect effects, and feedback loops, both between symptoms and behaviors as well as among them. This patient’s symptoms and behavior were interrelated in an intricate way. This type of research seems useful for gaining insight into the causal mechanisms underlying the effects of a healthy lifestyle on mental health.

Authors’ Affiliations

(1)
Center for Integrative Psychiatry, Lentis
(2)
Interdisciplinary Center for Psychiatric Epidemiology, RuG, UMCG

Copyright

© Hoenders et al; licensee BioMed Central Ltd. 2012

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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