Please assess the completion status of the following clinical trial:

Trial Title: Exercise-induced Changes in DNA-methylation

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

Eligibility Criteria:
Inclusion Criteria:~* Male~* 70-75 years old~* Signed written informed consent~Exclusion Criteria:~* Incompatible with exercise~* Known cardiac disease~* Active cancer~* Significant pulmonary disease~* Uncontrolled hypertension~* Use of blood thinning medicine (except Albyl-E)~* Drug abuse~* Alcohol abuse~* Finishing less than 80% of the exercise sessions (this complies to the training groups)

- Gender: MALE
- Minimum Age: 70 Years
- Maximum Age: 75 Years
- Healthy Volunteers: t

Study Arms:
- High-intensity interval training (Type: EXPERIMENTAL): The High-intensity interval training group was instructed to complete exercise sessions of 4x4-minutes intervals at 85-95% of maximal heart rate, 3 times a week for 8 weeks. This type of exercise include 10 minutes warm-up, followed by four intervals of four minutes high-intensity (85-95% of HRmax), with three minutes active breaks (70% of HRmax) between each interval, and ending with seven minutes cool-down. An exercise session last for 42 minutes, where the participants should breathe heavily and feel exhausted four times.
- Moderate training (Type: ACTIVE_COMPARATOR): The moderate training group was instructed to complete exercise sessions of 50 minutes at 70% of maximal heart rate, 3 times a week for 8 weeks.
- Control (Type: NO_INTERVENTION): The control group followed the baseline and follow-up tests, and was asked to live normally and not change their dietary pattern or exercise habits during their participation in this project. Based on the well-known beneficial effects of exercise on general health, it was regarded unethical to demand the control group to desist from any types of physical activity during the project period. They got no further follow-up on exercise.

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