Obesity Clinical Trial
Official title:
Moderate Exercise and Bright Light Treatment in Overweight Individuals
Verified date | July 2006 |
Source | University Health Network, Toronto |
Contact | n/a |
Is FDA regulated | No |
Health authority | Canada: Health Canada |
Study type | Interventional |
Bright light therapy has been used to safely and effectively treat conditions such as Seasonal Affective Disorder and to regularize sleep in patients with circadian rhythm disorder. Based on evidence of the link between bright light, serotonin, mood and carbohydrate metabolism, it has been suggested that bright light therapy can improve weight loss but the literature on the subject is sparse. Further, the literature suggests that apart from any changes in mood and carbohydrate metabolism, bright light may reduce the unpleasant side-effects of exercise and increase compliance to an exercise program.
Status | Completed |
Enrollment | 24 |
Est. completion date | December 2003 |
Est. primary completion date | |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 55 Years |
Eligibility |
Inclusion Criteria: - Overweight subjects - Subjects in otherwise good health - Subjects willing to participate in a 6-week moderate exercise program - Bedtime between 10pm and 12am; wake-up time between 6am and 8am - Score in the median range of the Morningness/ Eveningness Questionnaire (i.e., subjects show no distinct characteristics of phase delay or phase advance) Exclusion Criteria: - Progressive eye disease - History of cataracts, macular degeneration or have undergone laser corrective eye surgery in the past 30 days. - Currently taking any medications, e.g. antibiotics, tricyclic antidepressants, that may affect photosensitivity - History of heart disease - History of respiratory diseases, such as asthma, emphysema - Any severe or uncontrolled general medical condition - Severe psychiatric disorder (as determined by psychiatrist - CMS) - History of mania - Grossly obese individuals with morbid obesity |
Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Canada | University Health Network | Toronto | Ontario |
Lead Sponsor | Collaborator |
---|---|
University Health Network, Toronto | The Litebook Company Ltd. |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | The primary outcome measure will be the amount of weight loss. | |||
Secondary | Secondary outcome measures will be the ratings of mood on the POMS, CES-D and SPAQ |
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