Please assess the completion status of the following clinical trial:

Trial Title: Efficacy Study of Mindfulness-Based Exercise for Posttraumatic Stress Disorder (PTSD)

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* employed as a nurse~* PCL-C score of at least 28 with at least a score of 3 on one or more items for inclusion in the PTSD symptomatic groups (EX and CON)~* PCL-C score of 27 or lower for inclusion in the non-PTSD symptomatic group (BASE).~Exclusion Criteria:~* the inability to complete the exercise program~* a positive answer to any of the seven screening questions on the Physical Activity Readiness Questionnaire (PAR-Q)~* current use of prednisone or other forms of cortisone medication excluding cortisone in inhaled form

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- Exercise Group (Type: EXPERIMENTAL): Participants who are screened positive for PTSD and participate in the series of 16 standardized, semiweekly 60-minute mindfulness-based exercise sessions. The intervention consists of stretching and balancing movements combined with breathing and a focus on mindfulness.Over the course of 8 weeks, the intensity of the exercise increases, but the sequence of the movements is the same.
- Control Group (Type: NO_INTERVENTION): Participants who are screened positive for PTSD but do not participate in the mindfulness-based exercise.
- Base Group (Type: NO_INTERVENTION): Healthy volunteers who are not screened positive for PTSD and do not participate in the mindfulness-based exercise.

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