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. 2021 Jan 6;21:9. doi: 10.1186/s12877-020-01944-7

Table 5.

Difficulty levels and their corresponding perturbations of platform angles and maximum speed of the platform tilt

Difficulty level Tilt left/right (degrees) Tilt forward/backward (degrees) Speed (degrees/s)
1 3 2 6.2
2 4.5 3.5 9.2
3 6 5 12.2
4 7.5 6.5 15.2
5 9 8 18.2
6 10.5 9.5 21.2
7 12 11 24.2

Tilt: The number of degrees by which the platform will tilt to a certain side during a perturbation of the corresponding level. Speed: The maximum speed at which the corresponding platform tilt will be reached