How exercise can help reduce fear responses in PTSD

Efficacy and mechanisms of exercise-enhanced fear extinction

NIH-funded research University of Texas at Austin · NIH-11129421

This study is looking at how different levels of aerobic exercise can help people with PTSD feel less afraid by improving their treatment, and it’s for anyone who wants to see if exercise can make a difference in managing their symptoms.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Texas at Austin NIH-funded
Lab location1 site (Austin, United States)
Project IDNIH-11129421 on NIH RePORTER

What this research studies

This research investigates how different intensities of aerobic exercise can enhance the process of fear extinction in individuals with posttraumatic stress disorder (PTSD). By examining the effects of exercise on fear responses, the study aims to improve existing treatments like exposure therapy, which currently has limited success rates. Participants will engage in various exercise regimens following fear extinction learning to assess their impact on fear retrieval and generalization. The research will also explore the biological mechanisms behind these effects, particularly focusing on brain-derived neurotrophic factor (BDNF) levels.

Who could benefit from this research

Good fit: Ideal candidates for this research are adults aged 21 and older who are experiencing symptoms of PTSD.

Not a fit: Patients who do not have PTSD or are unable to participate in aerobic exercise may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to more effective treatments for PTSD, improving recovery rates for patients.

How similar studies have performed: Previous studies have shown promising results in using exercise to enhance fear extinction, suggesting that this approach may be effective.

Where this research is happening

Austin, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.