Prospectively assessed posttraumatic stress disorder and associated physical activity

Area of Science:

• Military health research
• Psychological trauma studies
• Exercise science

Background:

• Posttraumatic stress disorder (PTSD) is a significant concern in military populations.
• Understanding modifiable risk factors for PTSD is crucial for effective interventions.

Purpose of the Study:

• To investigate the prospective association between different types of physical activity and posttraumatic stress disorder (PTSD) symptoms.
• To assess the relationship between physical activity levels and the incidence and persistence of PTSD symptoms in U.S. service members.

Main Methods:

• Prospective cohort study utilizing baseline and follow-up questionnaire data from 38,883 U.S. service members.
• Multivariable logistic regression analysis was employed to examine associations between physical activity and PTSD symptoms.
• Specific physical activity types analyzed included light/moderate activity, vigorous activity, and strength training.

Main Results:

• A high prevalence of physical activity engagement (89.4%) was reported among participants.
• Lower levels of physical activity were associated with a higher likelihood of screening positive for PTSD.
• Vigorous physical activity demonstrated a consistent inverse relationship with PTSD symptoms, with significant reductions in odds for both new-onset and persistent PTSD.

Conclusions:

• Physical activity, especially vigorous exercise, is significantly associated with reduced odds of PTSD symptoms in U.S. military personnel.
• Findings suggest that incorporating physical activity into PTSD prevention and treatment strategies may be beneficial.
• Further longitudinal research is warranted to confirm these associations and explore causal mechanisms.