Please assess the completion status of the following clinical trial:

Trial Title: Neurobiological and Psychological Benefits of Exercise in Chronic Pain and PTSD

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Only Veteran and civilian participants in whom a physical examination, medical history, EKG, and baseline laboratory studies including urine toxicology screens indicate that maximum load exercise testing will be safe will be included in this study.~* Participants must be free of medications and other substances, (e.g., illicit drugs and alcohol) with effects that could hinder data interpretation for 2-6 weeks depending on the medication and frequency of use (which must be cleared by the PI's primary mentor).~* If on pain medications with short half-lives, must be off of them for 5 half-lives before testing, generally about 24 hours.~* Any participant with an ICD9 chronic pain diagnosis, with a musculoskeletal etiology, as confirmed by the study rehab medicine doctor, will be allowed for inclusion in the study.~* Also, any participant with a confirmed psychiatric diagnosis of PTSD~  * or have trauma exposure without a diagnosis of PTSD but some symptoms of PTSD, including subthreshold PTSD~ * other psychiatric conditions~* Individuals must meet for current chronic PTSD (\>3 months ) as assessed by the CAPS 1-Month Diagnostic Version.~Exclusion Criteria:~* Veteran and civilian participants will be excluded from participation in the study if they have:~  * a life threatening or acute physical illness (e.g., cancer)~ * current schizophreniform illnesses or bipolar disorder~ * or active suicidal or homicidal ideation requiring clinical intervention.~* Women participants who are pregnant or are intending to become pregnant within the next six months will be excluded from participation.~* Individuals with current or past alcohol and/or substance dependence (less than three months from date of screening assessment) will be excluded.~* individuals without PTSD who have had greater than one major depressive episode or diagnosis of another serious psychiatric illness in their past, e.g.:~  * bipolar disorder or a schizophreniform disorder except for Psychosis not otherwise specified due to PTSD-related sensory hallucinations.~* Individuals seeking pain treatment such as surgical interventions or who have a neuropathic origin to their pain will also be excluded.~* Participants with chronic pain concerns that cannot tolerate exercising in a reclining bike and those who have had a clinical history of coronary artery disease or positive stress test~* Uncontrolled cardiac arrhythmia~* Moderate-to-severe aortic stenosis~* Severe arterial hypertension (systolic \>200 mmHg, diastolic\>110 mm Hg)~* More than first degree atrioventricular block also will be excluded from participation.~* Finally, participants who screen positive by answering all four items on the TBI assessment, will be excluded from participation.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: t

Study Arms:
- Chronic Pain//PTSD group (Type: EXPERIMENTAL): This group of trauma-exposed participants with chronic musculoskeletal pain and varying degrees of PTSD severity will receive baseline and endpoint maximum load exercise testing which will inform their individualized exercise prescription (based on a progressive methodology) of aerobic exercise. Exercise training is aimed at meeting specific heart rate ranges over time (increasing up to 80% of maximum HRR between the midpoint and endpoint (6-12 weeks).

Based on this trial design, predict the completion outcome and termination type (if applicable).