Table 6.

Difficulty levels and their corresponding perturbations of treadmill belt acceleration/deceleration, speed (increase) and duration of unilateral treadmill acceleration and deceleration

Difficulty level	Acceleration/Deceleration (m/s2)	Speed (increase/decrease, m/s)	Duration (s)
1	3	0.5	0.20
2	3	0.85	0.28
3	3	1.2	0.36
4	3	1.55	0.44
5	3	1.9	0.52
6	3	2.25	0.60
7	3	2.5	0.68

Speed: The increase or decrease in unilateral treadmill belt speed in m/s for each difficulty level. Duration: The amount of time during which the increased speed is maintained