Please assess the completion status of the following clinical trial:

Trial Title: Head-Mounted Vibrotactile Prosthesis for Patients With Chronic Postural Instability

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: OTHER
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Ambulatory~* Chronic imbalance for at least 1 year~* Have reached a functional performance plateau with respect to balance performance~* Have a DGI score of \<19~* Fall below age and gender matched normative data for gait speed~Exclusion Criteria:~* Subjects who are unwilling or unable to adhere to all study requirements, including completion of the training period, evaluation tests, and return to clinic for a follow-up visit.~* Women who are pregnant (women will self-report possible pregnancy).

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: 89 Years
- Healthy Volunteers: f

Study Arms:
- BALCAP prosthesis, then Control (Type: EXPERIMENTAL): Participants performed exercises daily at home wearing the BALCAP prosthesis for 6 weeks. After 6 weeks, participants performed the control condition (the same exercises without the BALCAP). Tests were performed before and after each 6-week period. Exercises included: (1) standing on a firm surface with feet apart, eyes open and closed; (2) standing on a firm surface with feet together, eyes open and closed; (3) standing on thick footing (e.g., multiple pairs of socks) with feet apart, eyes open and closed; (4) standing on thick footing with feet together, eyes open and closed; (5) standing in a modified Romberg position on a firm surface, eyes open and closed; (6) standing in a Romberg position on a firm surface, eyes open and closed; (7) walking on a firm surface eyes open; (8) walking with thick footing, eyes open; (9) walking with head turns and tilts, eyes open; and (10) walking around a room, with turns and movements other than straight forward walking, eyes open.
- Control, then BALCAP prosthesis (Type: EXPERIMENTAL): Participants performed exercises daily at home for 6 weeks without wearing the BALCAP prosthesis (control), followed by another 6 weeks of the same exercises with the BALCAP prosthesis (intervention). Tests were performed before and after each 6 week period. Exercises included: (1) standing on a firm surface with feet apart, eyes open and closed; (2) standing on a firm surface with feet together, eyes open and closed; (3) standing on thick footing (e.g., multiple pairs of socks) with feet apart, eyes open and closed; (4) standing on thick footing with feet together, eyes open and closed; (5) standing in a modified Romberg position on a firm surface, eyes open and closed; (6) standing in a Romberg position on a firm surface, eyes open and closed; (7) walking on a firm surface eyes open; (8) walking with thick footing, eyes open; (9) walking with head turns and tilts, eyes open; and (10) walking around a room, with turns and movements other than straight forward walking, eyes open.

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

Answer: outcome: complete