1. Participants in the experimental group received combined perturbation and dual task training
2. The intervention was conducted for 3 days a week for 6 consecutive weeks
3. Each treatment session lasted approximately 40 minutes including 5 minute of warmup and 2 minutes of rest between 2 segments
4. Primary training modality was treadmill
5. Initial walking speed was determined individually for each participant by using 10MWT
6. Perturbations were applied manually during treadmill walking
7. The intensity of treadmill was progressively increased across sessions by change in directions of perturbations, unpredictability, walking speed and reducing hand support when safe
8. Dual-task training is added after 3 session and will be performed concurrently with perturbation training.
9. Cognitive tasks include counting backwards, naming animals, subtracting 3 from 100.
10. The complexity of the task will progressively increased
11. Safety should be ensured by using the harness

1. Participants in control group received Perturbation Baesd Training Alone
2. The intervention was conducted for 3 days a week for 6 consecutive weeks
3. Each treatment session lasted 40 minutes including 5 minute of warm up and 2 minute of rest between segments
4. Primary training modality was treadmill
5. Initial walking speed was determined individually for each participant by using 10MWT
6. Perturbations were appllied manually during treadmill walking
7. The intensity of treadmill was progressively increased across sessions by chanfe in directions of perturbations, unpredictability, walking speed and reducing hand support when safe
8. Safety should be ensured by using the harness, keeping emergency stop at reach, and use of handrails when necessary

The control group will participate in a structured six-week intervention program consisting exclusively of the Perturbation Based Balance Training. Participants will attend three supervised sessions per week, ensuring consistent oversight and proper technique throughout the program. Each session will began with a warm-up period, followed by two 8-minute segments of perturbation-based treadmill training, with participants allowed a rest period of 60 second to 2 minute between repetitions to prevent fatigue and maintain the quality of each movement. The frequency is maintained consistently, however, perturbations dosage was progressively increased across all six weeks to provide a standardized exposure, allowing for accurate comparison with other intervention groups. Over the entire six-week period, participants will complete a total of 18 supervised sessions, each with three repetitions, summing up to 108 bouts across the intervention.

Berg Balance Scale (BBS) was used, Maximum Total=56 points (41-56=Low fall risk, 21-40= Medium fall risk, 0-20 High fall risk)

Montreal Cognitive Assessment Scale, Maximum score=30 (26-30= normal cognition, 18-25= mild cognitive impairment, 10-17 moderate cognitive Impairment, <10=severe cognitive impairment

Fall Efficacy Scale (FES), Total score=10-100 (higher score = greater fear of falling