Temporal dynamics of physical activity and mood in everyday life: Towards tailor-made interventions to prevent or ameliorate depressed mood

Completed

Conditions: 10027946
depression
depressive illness

Registration Number: NL-OMON37420

Lead Sponsor: niversitair Medisch Centrum Groningen

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Completed

Sex: Not specified

Target Recruitment: 60

Inclusion Criteria

Age between 20 and 50 years
Subjects should be capable of keeping an electronic diary three times a day, sampling saliva while filling out the electronic diary, abstaining from eating or drinking (except water) during 30 minutes before sampling, wearing an accelerometer 24 hours a day;Depressed subjects:
A diagnosis of Major Depressive Episode according to DSM-IV criteria at the moment of inclusion;Non-depressed subjects:
No diagnosis of Major Depressive Episode, Minor Depressive Episode or Dysthymic Episode according to DSM-IV criteria at the moment of inclusion

Exclusion Criteria

A current diagnosis or diagnosis anywhere in the past two years of a Psychotic Disorder or Bipolar Disorder
Somatic disorders that severely affect functioning of the hypothalamic-pituitary-adrenal (HPA) axis or the autonomic nervous system (ANS)
Medication that severely affect functioning of the HPA axis or the ANS
Significant visual or hearing impairments
Pregnancy

Study & Design

Study Type: Observational non invasive

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>Mood will be measured with the Positive and Negative Affect Schedule (PANAS;<br /><br>Watson, Clark and Tellegen 1988), with two additional items, namely happy and<br /><br>sad, which has shown to be a short and valid instrument for the daily<br /><br>assessment of mood (Wenze et al. 2006). Physical activity levels will be<br /><br>tracked with an accelerometer, the ActiCal® (Respironics, Bend, OR, USA).<br /><br>Output of this instrument will be presented as Energy Expenditure (EE) and<br /><br>Metabolic Equivalent of Task (METs). Actigraphy will be complemented with a<br /><br>newly developed questionnaire that covers the nature and context of physical<br /><br>activities and motivations for being physically active. </p><br>

Secondary Outcome Measures