Please assess the completion status of the following clinical trial:

Trial Title: Optimizing Physical Activity Outcomes After Total Knee Arthroplasty

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Veteran~* Planned unilateral total knee arthroplasty~Exclusion Criteria:~* Severe non-surgical limb pain (pain \>5/10 on non-surgical limb with walking)~* Unstable orthopedic, neurologic, or pulmonary condition that limits function~* Unstable cardiac condition~* Uncontrolled hypertension~* Uncontrolled diabetes~* Acute systemic infection~* Active cancer treatment~* Recent stroke (within 2 years)

- Gender: ALL
- Minimum Age: 50 Years
- Maximum Age: 85 Years
- Healthy Volunteers: f

Study Arms:
- Physical Activity Behavior Intervention (Type: EXPERIMENTAL): A 12-week behavior change intervention that supplements conventional rehabilitation including: 10 telerehabilitation sessions, daily activity sensor use, education, self-monitoring, tailored feedback, barrier/facilitator identification, promotion of problem solving, action planning, and encouragement.
- Attention Control (Type: ACTIVE_COMPARATOR): Conventional rehabilitation with 10 telerehabilitation sessions that match the frequency and duration of the experimental arm. Attention control intervention provided as 10 telerehabilitation sessions of non-physical activity related education-only sessions.

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