This randomized controlled trial aims to investigate the efficacy of Progressive Muscle Relaxation Training (PMRT) in individuals who developed Post-Traumatic Stress Disorder (PTSD) following the February 6 Kahramanmaraş earthquake.

Post-traumatic stress disorder (PTSD) is an often devastating psychiatric condition that can occur in people who experience or witness a traumatic event.The estimated lifetime prevalence of PTSD is reported to be 6.8%.While trauma-focused psychotherapy is generally the first-line treatment in PTSD management, pharmacological treatments (selective serotonin reuptake inhibitors) are recommended in second-line treatment.Additionally, various physiotherapy and rehabilitation approaches such as aerobic, respiratory, relaxation, stretching, balance and strengthening exercises can also be used.Progressive muscle relaxation training increases parasympathetic nervous system activity. This is said to reduce anxiety and stress levels and improve sleep quality, resulting in physical and mental relaxation.

Inclusion Criteria:

• Individuals affected by the February 6 Kahramanmaraş earthquake.
• Those diagnosed with Post-Traumatic Stress Disorder (PTSD) according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria or with a score of 47 or above on the Post-Traumatic Stress Disorder Checklist (PCL-5).
• Aged 18-65 will be included.

Exclusion Criteria:

• Individuals affected by disaster types other than the February 6 Kahramanmaraş earthquake (such as war, flood, landslide, etc.)"
• Individuals with uncontrolled comorbidities accompanying PTSD (such as diabetes or hypertension)
• serious psychological disorders (such as dementia, psychosis/manic episodes)
• musculoskeletal conditions that would interfere with exercise training
• received PMRT training within the last year
• pregnant
• have substance abuse
• have communication difficulties, and are unable to use technology for telerehabilitation will not be included in the study