Please assess the completion status of the following clinical trial:

Trial Title: Clinical Prediction Rule for Clinical Lumbar Instability

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

Eligibility Criteria:
Inclusion Criteria:~1. duration of the current episode of low back pain less than 3 months,~2. average pain intensity over past 3 days at least 4 on an 11 point (0 = no pain, 10 = worst pain ever) numeric pain rating scale,~3. no medical intervention for low back pain in last 6 months,~4. Oswestry score greater than 25%~Exclusion Criteria:~1. permanent structural spinal deformity (e.g., scoliosis)~2. history of spinal fracture or diagnosis of osteoporosis~3. diagnosis of inflammatory joint disease~4. signs of systemic illness or suspected non-mechanical LBP (i.e. spinal tumor or infection)~5. previous spinal surgery~6. frank neurological loss, i.e., weakness and sensory loss~7. history of neurologic disease that required hospitalization,~8. active treatment of another medical illness that would preclude participation in any aspect of the study or any lower extremity injury that would potentially alter trunk movement in standing~9. leg length discrepancy of greater than 2.5 cm.~10. pregnancy~11. vestibular dysfunction

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- Low back pain (Type: OTHER): Individuals with current low back pain.

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