Please assess the completion status of the following clinical trial:

Trial Title: Effects of Exercise Intervention on Aging-related Motor Decline

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

Eligibility Criteria:
Inclusion Criteria:~* Living persons between 60 and 85 years of age~Exclusion Criteria:~* unmanaged diabetes~* participants completing vigorous exercise per week~* participants whose profession requires vigorous physical labor~* contraindication to magnetic resonance imaging

- Gender: ALL
- Minimum Age: 60 Years
- Maximum Age: 85 Years
- Healthy Volunteers: t

Study Arms:
- Stretching Exercise Intervention (Type: EXPERIMENTAL): A. Light stretching and balance exercises under supervised trainer. 3 times per week for 20-45 minutes. HR will be targeted to be under 50% of age-related maximum.
- Aerobic Exercise Intervention (Type: EXPERIMENTAL): B. Interval aerobic cycling under supervised trainer. 3 times per week for 20-45 minutes. HR will be targeted between 50-85% of age-related maximum.
- Self Monitoring Intervention (Type: EXPERIMENTAL): C. 6 month self-monitored training phase during which time participants will exercise using a take home bike ergometer.

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