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HEALTH CARE UPDATES
Posted on O&P Business News May 26, 2010

Bright Light Therapy Improves Combat PTSD Sleep Disturbances

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Bright light therapy has significant effects on sleep disturbances associated with combat-related post-traumatic stress disorder, (PTSD) according to researchers.

Results indicate that bright light therapy produced a significantly greater improvement than placebo in sleep disturbances specific to PTSD. Bright light therapy also produced a moderate improvement in PTSD symptoms and depression.

“Results of this ongoing study show significant effects of bright light on disruptive nocturnal behaviors associated with combat PTSD, as well as positive effects of bright light therapy on PTSD symptom severity,” study coordinator Shannon Cornelius, PhD, graduate research assistant for Shawn D. Youngstedt, PhD in the department of exercise science at the University of South Carolina in Columbia, SC, said in a news release. “Because bright light therapy is a relatively simple, self-administered, inexpensive treatment with few side effects, these results are an important step to further establish the efficacy of bright light therapy as an alternative or adjunct treatment for combat-related PTSD.”

The study involved 16 soldiers who returned to the U.S. with combat-related PTSD after serving in Operation Enduring Freedom or Operation Iraqi Freedom. Following a 1-week baseline, participants were randomized to one of two 4-week treatments. Eight soldiers received 10,000 lux of bright light therapy for 30 minutes each day. The other eight participants were assigned to the placebo group and received sham treatment with an inactivated negative ion generator. The Clinician-Administered PTSD Scale (CAPS-2) was completed at baseline and immediately following completion of the study. At weekly intervals, depression was assessed with the Beck Depression Inventory (BDI-II), and sleep quality was assessed with the Pittsburgh Sleep Quality Index (PSQI) with addendum for PTSD (PSQI-PTSD).

“Disturbed sleep is known to interact with depression and anxiety in a vicious cycle,” Cornelius said. “By reducing the severity and occurrence of sleep disturbances, it may be possible to reduce the severity of symptoms such as anxiety and depression in combat-related PTSD.”

O&P Business News is intended for practitioner use and all comments will be posted at the discretion of the editors. We reserve the right not to post any comments with unsolicited information about medical devices or other products. At no time will O&P Business News be used for medical advice to patients.

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