Exercise in Anxiety and Posttraumatic Stress Disorders

Aim: Aerobic and resistance exercise showed anxiolytic effects in clinical populations. Climbing could further enhance self-efficacy. Aim of the study is to examine whether climbing exercise and aerobic exercise, compared to social contact control, reduces symptoms of disease in out-patients with anxiety disorder (AD) and post-traumatic stress disorder (PTSD). Further analyses are aiming to reveal differences between climbing - and aerobic exercise. Design: Randomized controlled clinical trial Participants: Thirty out-patients diagnosed with International Classification of Disease-Version 10 (ICD-10) (F40, F41, F43.1) for AD or PTSD. Intervention: Out-patients will be assigned randomly to a climbing exercise group (a), aerobic exercise group (Nordic walking) (b) or social contact control group (c). Measurements: Primary outcome is symptom severity in AD or Post Traumatic Stress Disorders. Further secondary outcomes are evaluated by psychological questionnaires assessing depression, worry symptoms, quality of life, self-efficacy and affective responses. Metabolites of neurotransmitters, immune-activation markers and anthropometric data will be additionally provided as secondary physiological outcomes. Duration: Intervention duration is four weeks with 2 x 75 min for every group (climbing exercise, aerobic exercise, social contact control). Measurement points are set at the beginning (t1), at the end of the intervention (t2) and 3 (t3) and 6 (t4) months follow-up.